Learn Gem Cutting Hobby in Quick 3 Steps

In the last century or so, the art of gem cutting has actually turned into a sophisticated technological expertise. Much like the aerospace and automotive industry, gem cutting too is a high precision operation. There are many automatic and manual gem-cutting machines that deliver flawless machining over the rough rocks. One of the most important steps in gem production is faceting, which is carried out using semi-automatic laser cutters and smoothening machines.

 What does a gem cutting machine actually look like?
If you have an eye for perfection and know how to give fine strokes on a soap stone, you too can try gem cutting as a profession. There are many urbane machines for lapidary but the basic components of every machine is the same.
It consists of:

  • Grinding plate/ Lapping face
  • Protractor scale
  • Setting pin
  • Faceter
  • Polishing pad
  • DOP/ Holder

The design of the gem cutters has remained the same since 1970. If you are looking for something sophisticated, there are gem cutters with torch, camera and laser points to guide the angel of cut. They are particularly useful for cutting and polishing of smaller gems, weighing less than 2 carats.

Step-by-step guide to cutting a gem like a professional

Cutting a gem requires short but forceful touch. The depth of cut is what gives precious stones the brilliant look and radiance. Cutting a faceted gem always begins with the selection of the roughest face.
Step 1:
Pick a gem that has stable colour, clarity and has recognizable shape. The hardness and durability are other qualities in the gems that you must know in advance. You may also have to check the internal crystalline property of the stone by observing it under IR and UV microscopes. These tests will give you a clear idea about the properties of gemstone, and whether it will be able to take the gem cutting operation without chipping away.
Step 2:
Study the design in advance. Before starting with gem cutting, swot the symmetry and the type of cut suitable for the gemstone according to the observations made under test. You can choose a rough cut to support a particular gem design as a default setting. The easiest gem cutting sample is the rutilated quartz. You can try tumbling and twist it as per convenience.  Always choose a stone with clear centre so that you can see the light pass through without reflection, when you are done with cutting.
Step 3:
Start grinding away the unwanted parts in 1:2 ratio of depth versus width. Attach the gem to the machine using the ‘dop’ and apply hot wax to prevent slipping of needle. Flatten the bottom of the stone to match the contour with the dop surface. Cut pavilion cuts at 30-45 degrees to create a centre with charming orientation of the gemstone.
Start cutting the crown angles at 26-52 degrees. Your gemstone is ready. All it needs is a polishing with an abrasive cloth or linen for fine touch.

Top 6 Gemstone Rarer than Diamond

Form most buyers, diamond is the number one choice when it comes to gifting their loved ones a priceless ring or a necklace. Some may go beyond the usual diamonds and acknowledge the value of an emerald, rubies or sapphires as valuable gemstones. In fact, diamond manufacturers are often blamed for segregating the gemstone market into precious and semi-precious segments.

Here are 6 gemstones that are truly rarer and definitely far more precious than a diamond!
Painite
Painite was officially the world’s rarest gemstone as per The Guinness Book of World Records. Named after the mineralogist, Arthur C Pain who discovered the extraordinary rock in Myanmar in 1950, Painite has less than 25 identified varieties. Even as new discoveries are being made to dig out varieties of painite and produce it artificially in labs, it continues to be in the top 10 rare gems list.

Tanzanite
Want to know why Tanzanite is in the list? Well, as per the recent studies by mineralogists, Tanzanite is 1000 times rarer than diamond. Found in African nation, Tanzania, this gemstone is extracted exclusively from the foothills of Mount Kilimanjaro. It exhibits pleochroism like Alexandrite. The gemstone exudes a catchy shift in colour when viewed in different intensities of light and across various angles of display. The only reason for its rarity as an exquisite gemstone is the presence of vanadium ions.

Alexandrite
The chrysoberyl gemstones have always been endowed with an element of fantasy. Alexandrite is no different. It deserves to be in this list for its brilliant shift in colours when observed in natural sunlight and in dark. It belongs to the emerald family and exudes the similar greenish blue shade in natural sunlight. When turned to candle light, it shifts its colour radiance to darker purple and scarlet red shade. The dramatic alteration in its colour is bestowed by virtue of a rare combo of ions of Titanium, iron and chromium.

Benitoite
Other than blue diamonds, topazm aquyamarine and Lapis Lazuli, you finally have a choice form the rarest segments of gemstones. Benitoite is quarried from the waters of San Benito River in California, USA. Some extraneous gemstone resembling the variety are also found in Alaska, Arkansas and Japan. The brillaint blue looks electrifying when seen under UV light. It is officially the neon king among all gemstone in the ‘rarer than diamond’ list.

Grandidierite
Grandidierite is an enthralling mineral found on planet’s most exotic location- Madagascar Islands. Its pleochroic properties cover all the shades visible in the rainbow. A carat of Grandidierite can cost you USD 100,000, that too an unpolished uncut variety.

Poudrette
Discovered only four decades ago, the gemstone derives its name from the Poudrette quarry of Mont Saint Hilaire in Quebec. Like Painite, it was not officially considered as a mineral gemstone due to its dark brown shade. It entered the list of rare than diamond only in 2003 when it was thoroughly studied by mineralogists for its physical, crystalline and economical significance. Serandite crystals and Carletonite crystals are also found along with this rare gemstone. It is priced at $1400.00 per carat.

A look at Magnificent History of Briolettes

Briolettes have always been associated with royalty and the nobility. A briolette is an enchanting gemstone cut with elongated facets. It has been very popular since Victorian era owing to its pear-shaped cut. It is worn with strings and hence has drills through it. One of the most popular briolette to grace a royal was the Smithsonian, which weighed a whopping 275 carat. It was gifted to Marie Louise, the consort of Napoleon Bonaparte in 1811. Since then, it has always been associated with royal display of asceticism, sophistication and beauty.

Why Briolette

Briolette derives its name from French word, brignolette meaning “Puny Dried Plum”. Though it looks simple in its appearance, briolette requires extensive cuts and faceting. Any pear shape is not a briolette. Its shape can range from elongated tear to a triangular dew drop. Pear-shaped briolettes are more popular forms as they can’t be manipulated once cut.

Briolette cuts give a fanciful opportunity to gemstone buyers. The popular colours like canary yellow, citrus green, rosy pink, cognacs and champagne hue look brilliant when rocks are cut in briolette facets. Every briolette is unique in its stance and can be easily set apart from the ordinary cuts.

During the 18th and 19th century, briolette stones were cut exclusively in India and New York. The skills required to gain precision stones were limited to Indian craftsmen. It remained a traditional cut and new cutting techniques began to flood the stone market with easier, uncomplicated designs. By end of 18th century, the briolette stone popularity was sky high.

Popular briolette from history that were cut into the shape to satisfy royalty and aristocracy are listed below:

  • India Briolette: This 91 carat gemstone is one of the most mesmeric items of collection. It is huge and brilliant in its posture.
  • Eleanor of Aquitaine, once owned by King Richard the Lionhearted, took the briolette diamond with him to the Crusades.
  • Smithsonian briolette set over the Inquisition necklace majestically flaunts emerald and diamonds over its 16 barrel shaped set-piece. It was exhibited in 1949 as part of “The Court of Jewels” by famous gemstone collector Harry Winston.

Fiery and graceful: Briolette exudes brilliance

Diamond, emerald, lapis lazuli, carnelian, labradorite, rutile quartz, chalcedony, tourmaline, moonstone and onyx are some of the popular gemstones that are cut in briolette. The drop-shaped stone is given a triangular or diamond facet all round its surface. It has a circular cross-section throughout the stone. It is preferred cut for light coloured gemstones with eloquent irradiance. Estate jewellery and antiquated gemstones from Edwardian and Art Deco eras were given elaborate diamond briolette cuts with symmetrical facets.

Re-emergence of Briolette

The love for briolette grew prominence with Art Deco aficionados who took these gemstones to new heights. The bigger rocks were invariably cut into briolette. Even today, briolette gemstone is cut using hands and traditional smoothening tools. Ear-rings, necklaces, pendants and tiaras employ this exquisite piece of gem craftsmanship.

Guide To Different Gemstone Settings

With over a hundred gemstone groups to choose from and thousands of colours to pick, there is only one thing that comes to rescue when you are looking for an immaculate personalized item for collection. Simple gem settings like halo, paves and prongs have been in the gemstone market for centuries and still continue to rule. If you are looking for an engagement ring or a ring for men, you should be able to identify and distinguish between different gem setting types available in the market.
Here is how different gems are set in distinctive pieces of beauty and grace.

  • Prongs and Solitaire settings

This is the engagement ring gem setting preferred for a single stone encrusted or fixed on a metal band or ring. Prong setting for diamonds, rubies, amethyst, garnet, sapphires and topaz is very common as it folds the single stone in place tightly without using too much metal.
Prongs are claw-like holders that can be further classified as:

  • Pointed prongs
  • V-shaped
  • Flat
  • Hooked

V-shaped prong gem setting features exclusively in princess-cut solitaires. It allows more light to pass through the gemstone, magnifying the radiance and brilliance many times over.

  • The Tiffany

The Tiffany gem setting model was conceived by the famous gem makers, Tiffany & Co. in 1886. It is a special type of six-prong gem setting that features a discrete knife-like edge over the shaft and the prongs. It is a patented gem setting exclusively to the brand.
Bezel Setting
Bezel setting for gems is undoubtedly the most preferred look for modern day buyers, especially those who are looking for light coloured stones. It is easy to handle and gives sturdy protection to delicate gemstone settings. The metal rim encircles the gemstone from all sides, and secures it tightly. The rim prevents the rock from three things:

  • Deposition of dirt
  • Scratches due to uneven setting
  • Unsettling of the stone even in thinnest of rim
  • Tension Setting

Tension setting is used for the gemstone when the craftsman wishes to give it a suspended look. The gem rests on the metal band as if it were suspended across the two faces of the shank. It is achieved through lasers and is a high-precision gem setting technique. The band usually has thin grooves so that the gemstone is tightly secured at its place due to the tension of the metal band.
It is comparatively cheap despite its elaborate and complex setting style. It can be used as an added feature even with regular gem setting looks like bezel and pronged ones.

  • Channel Setting 

Channel setting is done for smaller and thinly cut gemstones. It is often done to secure smaller gems set on a band in series. It is very similar to what a flush setting looks like. The gems like rubies, diamonds and topaz are set closely together over the grooves on the channel. Popular styles like stacks and bands are used for thin gemstones as they can’t be set in prongs and bezels.

A look at popular Types of Gemstones

The most tempting feature about wearing a gem is that it can be cut and set into many distinct and beautiful shapes and settings. Popular gem retailers offer enticing options when it comes to stone settings. Be it an engagement ring or a ring for an anniversary, there is a stone setting style for each occasion. You can consider the following combination of settings for your diamond or emerald-encrusted ring and jewellery assortment.

  • Pave Set
  • Four prong
  • Six prong
  • Multiple prong
  • Full Bezel
  • Half Bexel/ Semi bezel
  • Flush
  • Millegrain pave set
  • Channel Set

Four, Six and Multiple prongs

Four prongs is a very popular form of gem setting that is done on lighter stones. It is employed for gems to allow maximum light refraction. Prongs on the gemstones resemble claws that are bent around the centre stone at equal distances. Four prong gem setting accommodates gems of all shapes and sizes. The popular shapes that are set with four prong style are:

  • Princess cut
  • Medicine wheel cut for sapphire
  • Round brilliant cut
  • Carved leaf rings

Six prong is a more protective gem setting style similar to four prongs, but with six claws. Multiple prongs on the other hand is used for smaller gems that require more support especially when encrusted on lighter metal bands or rings. It has multiple claws, usually in the series of 2s, 3s and 4s.

Full Bezel and half bezel

It is a royal gem setting style that is done on centre stones that are deeply encrusted into a combination metal or any other material. It protects the gemstone that are embedded into and encircled by metal. Emeralds, amethyst, garnet and turquoise are set in full bezel and accommodate shapes in square, oval and flat faces.

Semi-bezel is exclusively made for diamond rings weighing more than 4 carats. It allows maximum light penetration at all angles as compared to the same stone set in full bezel. Conventionally, bigger the gemstone, greater are the chances that it would be set in semi bezel.

Flush sets

Flush set is used for gemstones of darker hue like garnets, amethyst, lapis lazuli and onyx. Moonstones, rubies, cat stones and diamond are other rocks that are conveniently accommodated in flush sets. It is styled on bands and pendants slightly lower than the surface of the base material to protect them from damages and scratches. They resemble an encrusted wall.

Pave sets: Conventional and Mille grained

Gemstones paved on a metal base are placed very close to each other and separated by thin frames. The little beads of metals keep the smaller gemstones from detaching under force or fall. It also allows adjustment of gemstones when the metal expands due to heat. It is preferred for diamonds and rubies cut in bead or cushion sets.

Pave sets with mille grains are done for beaded gemstones to harmonize with traditional paves. It is usually employed for diamond rings set in royal antiquated designs.

What is the meaning of seeing a Gemstone in Dreams?

Every dream has a realty lurking around its existence. The meaning of gems appearing in your dreams has a rather significant importance. It could be a signal to your never ending misery or an intuitive insight into an upcoming opportunity. Whenever you see a dream with gemstones in it, there is a relevant meaning mentioned in Bible and religious scriptures written all round the world.

Here are some gemstones that carry a group and an individual meaning when they emerge in dreams.

  • Pearl: Freedom from misery and entry into Heavens

Pearl is a symbol of clarity and purity. It is associated with the truth in life. If you see pearl beads in your dreams, you are likely to experience a new spiritual high in life very soon. It could come in the form of love, hope or an inviting opportunity to go abroad on business. In Biblical notes, seeing pearl in dreams indicates an entry through the Gateways into the Kingdom of God on account of your good deeds, merciful behaviour and devoutness towards the Lord.

  • Jade

Jade often make an entry into your dreams when you are troubled by relationship issues or are marred by poor health. If you are ailing with a chronic disease and given all hope of recovering from it, jade comes as a saviour and a guardian angel. After you see jade in your dreams, you can start wearing it. You can tuck the gemstone under your pillow. The closer this gem stays with you greater will be your hope and chances of recovering from any trouble in life.

  • Sapphire

Blue sapphire weighing less than 3 carats has always been associated with strength and beauty. Dreaming about sapphire is not that common. It is often witnessed by women expecting a baby. It could mean that whether they have conceived or are ready to deliver a baby. It also means that the time is ripe that they adorn a sapphire stone to ensure protection against evils that could inflict any harm on her new born child.

  • Diamonds

Diamonds in dreams have many ambiguous associations. It is one of the most common gems to appear in the dreams, probably because of its significance in life.  It could be an indication of stifling greed within a human that requires to be quenched. It could also signify that you are about to receive something invaluable in life. Since every person has different definition for success, seeing diamonds in dreams could also mean different degrees of effect in life.

  • Emeralds

This is one of the most distinct gemstone to appear in dreams. It often appears as green crystals and glow balls in dreams. Common among individuals involved in professions related to eco-system protection, mariners and sportsmen, emeralds relate to love for unique hobbies and activities. Gardeners, zoo-keepers and deep sea divers often experience dreams with emeralds in them. Spiritual meaning behind this experience is that you are going to have a challenging life with lot of adventures and thrill.

A look at top 5 Father's Day Gemstones for Men

Gemstones are not limited in their use as the quintessential stylish accessories for women. Even men love to adorn them over their fingers, around their wrists and as piercings on different parts of the body. For years, gemstone rings and collectible items are considered as the ideal gifts for men-oriented events. Be it an engagement, wedding anniversary, birthday event or Valentine’s Day. Looking for gems for men on special occasions like Father’s day? You can shop through some of the most enticing collection of gemstones in the market listed below.

  • The Blue Aura: Lapis Lazuli

Men have a special connection with the colour, Blue. Lapis lazuli is the most loved gemstone among men. For Father’s day, rings and mullets engraved with the Lapis Lazuli stone are considered as a potent gifting option for men. The stone is encrusted over silver bracelets or platinum rings. Wild gold is another preferable option for woman choosing lapis lazuli as a gifting option for her man.

  • The Garnet Clan

Most natural gemstones have a family. If you are looking for an exquisite option for men, garnet offers a whole clan to choose from. You can opt from the following set of garnet gem for men.

  • Pyrope
  • Almandine
  • Spessartite
  • Grossular
  • Andradite

For men who love exclusivity, you have a sixth option- Uvarovite, which is the rarest form of garnet.
The best part about gifting garnet gems to men is the “Gentleman’s Tag” they come with. They don’t look gawky or too flashy even when worn over formal attires. Hard, brilliant and long-lasting: this is the perfect gift for men who love to shuttle between the tough courses of life with a laid back attitude.

  • The Green Magic: Jadeite

More popularly referred to as Jade, this gem is another impressive gifting option for men on special occasions. It is also called as Lapis nephriticius and is believed to be the alternative for nephrite gems. With Mayan connection behind its use, adorning Jadeite is a symbol of perfection and flamboyance. The colour is lighter than a regular emerald. It ranges between a pale apple green to blue-green shade. Olmec Blue Jadeite is the most loved gem for men, usually presented on Father’s Day.

  • Fire Opal: The Impressive Rock

Also called the “Stone of the Paradise Bird”, Fire Opal is stunning, charismatic and unique owing to its yellow, orange and red mosaic look. These are handful of adjectives reserved exclusively as a package for Fire Opal. 4Strong body colour and hardness, the stone is a symbolic representation of wild lovers and achievers. They don’t have brilliance to boast about, but the characteristic fiery appeal magnifies when worn over a gold bracelet.

  • Kashmir Blue Sapphire

Elegant and royalty is bestowed on the person who wears Kashmir Blue Sapphire It is said that the ring chooses the man, and not the man. Gifting a 3 carat Kashmir blue sapphire is to a man as a solitary diamond rock is for a woman; The Best Friend.

A look at Top 4 Untreated Gemstones

Finding a natural gemstone is very rare. Most of the stones you get in the market is either treated or manufactured synthetically using heat and chemical treatments. The difference between the natural and treated gemstones is negligible, but it still matters. Why? A naturally occurring stone extracted from the earth’s crust or carved out of caves will have a higher price than the ones that are either treated or manufactured artificially.

Looking for untreated gemstones? Here are few enticing aspects on how gems are treated and how to identify them.

Gems that are often treated to look natural

Heat treatment and coating with oxides are the two common applications involved in gemology. Gemstones that are commonly treated to achieve the impeccable finish and attraction are;

  • Ruby
  • Sapphire
  • Blue Topaz
  • Blue Zircon
  • Blue Apatite
  • Emerald

Emerald stones are treated with resins to fill up the voids and cracks while sapphire is often treated with beryllium in hot conditions.  Natural gemstones have fractures and cracks which are often filled with lead glass to look perfectly smooth. Untreated gemstones with smooth finish and unblemished appeal are very rare and often kept for collection display.

Top Untreated gemstones: Unprecedented demand for Imperfection!  

 

As per gemology, natural untreated gemstones have a powerful influence on its healing properties. Unadulterated gemstones are known to produce positive results in life, while the treated ones often fail to deliver as promised. Here are some top gemstones that are in huge demand for their untreated appearance.

  • Spinel

It is naturally hard, ranking 8 on the Mohs scale. It is linked to the Fire element and retains its clarity and strength even after passing through refinement process. Spinel occurs in multiple hues and is preferred in its natural untreated version owing to the uncanny resemblance to sapphire and rubies. Popular shades of untreated spinel gemstones are:

  • Red spinel
  • Orange
  • Blue
  • Green
  • Violet
  • Silver
  • Mandarin Garnet

Orange Spessartite is one of the most popular gemstones that require no artificial treatment. It has a brilliant appearance with respectable hardness. It can be cut into smaller shapes and often fitted into rings and amulets. Another gemstone from garnet family that does not require any treatment is the Rhodolite Garnet. This stone exudes a mix of red, purple and burnt brown shade. The luminous gem is used in fashion, jewellery and decors.

  • Tourmaline

If you are looking for variety in untreated gem category, go for tourmaline. It is loved for its slippery show. Blessed with clear cuts and no fractures, large sized stones can be availed at affordable prices. It is one of the best-selling untreated stones in Asian, African and European markets.

  • Peridot

Peridot is a blemish-free, unadulterated gemstone that occurs only in one colour-Green. It can’t be modified by any heat or chemical treatment. Best-selling varieties are Burmese, Pakistani and Arizonian Peridot, prized at USD 20 per carat.

Other untreated gems you can try are chrysoberyl, Mali garnet and Precious Opal.

A look at Top 7 Anniversary Gemstones

Celebrate the special moments in life with elegant items. What better than the exquisite rock pieces for every anniversary of togetherness! There are thousands of different varieties of gemstones, but only a handful of them are actually called Anniversary Gemstones. Gemstones are not only precious items of collection, they also have special meaning when gifted to your loved ones. Be it the first anniversary or the Golden Jubilee, gifting an Anniversary gemstone is truly a step towards eternal companionship.

Here are 7 anniversary gemstones that are not just auspicious, but also unique, brilliant and of course, special in their own way.

  • Garnet

Garnet is available in multiple colours. It is the 2nd anniversary gemstone. The most preferred stone for gifting on the anniversary is Red Garnet. Other options are yellow, green and pink garnets. This hard stone can be used in amulets, rings, lockets and in beaded necklace form. Red garnet blends well with white metals like silver, white Gold and platinum.

  • Pearl

Both natural and cultured pearls display clarity of thoughts and transparency in relationship. Gifting natural pearl on an anniversary event is known to transform the relationship into an everlasting companionship. Just like the mollusc converts the sand gravels and pebbles into a beautiful pearl, the gemstone is used as an anniversary to convert challenges into improvement.

  • Sapphire

Blue sapphire is the choicest anniversary gemstone for the fifth year celebration. Other shades are equally auspicious like pink, white and violet shades. Untreated sapphire is not preferred as it has fractures and blemishes in its structure. For anniversary purpose, sapphire stone manufactured using heat treatment and diffusion is fitted into rings and beaded necklaces.

  • Diamond

Yes, the woman’s best friend is also a prominent anniversary gemstone. Diamond rings weighing 3 carats and more is a part of anniversary collection for celebrating 10 years of togetherness. Engagement and wedding rings with diamond studs are obvious winners. 60th anniversary is referred to as the “Diamond Jubilee.”

  • Ruby

If you are looking for a symbolic gemstone that represents love, compassion and genuineness, ruby is the apt anniversary stone. It is gifted on 15th anniversary. With a decade and a half of togetherness between you, your partner definitely deserves to own a heavy red ruby stone as a token of achievement.

  • Onyx

Do you wish to gift something to your man? Well, onyx is a popular gemstone used in men’s jewellery. Big onyx stones accentuated by diamond cuts and encrusted on metallic rings make up for a formidable anniversary gift. It is the 8th anniversary gemstone and a stylish trend.

  • Emerald

A variety of the beryl, emerald is an enticing gift for centennial celebrations. If your partner is ruled by planet Mercury and born under the zodiac of Taurus or Cancer, this is the most suitable gift for a major event in life. It soothes the nerves before a mega event and of course looks beautiful and engaging.

Other gemstone options for anniversary are amethyst, Lapis Lazuli, Chrysobery, jade, Citrine, Aquamarine and Peridot.

How Gemstone Are Classified?

Gems are one of the most intriguing items of collection. For centuries, they have been extracted from deepest crevices and darkest caves. There are many ways of classifying the gemstones. Most of the gemstones belong to the family of minerals which are classified as per their chemical composition, crystalline structure and presence of impurities.

Here is a smart list of principles about how gemstones are generally classified.

  • Minerals and Non-mineral gemstones

Mineral gemstones are more popular and commercially acceptable classification. Non-mineral gemstones are placed in the minority list owing to their organic nature. For example, the non-mineral gemstones include:

  • Pearl
  • Amber
  • Sea Coral
  • Petrified Wood
  • Jet
  • Ammolite
  • Copal
  • Petoskey stone
  • Nacre
  • Bone

Pearl, obviously is the most fascinating non-mineral organic gemstone in the list.

  • Natural and Artificial

From a collector’s point of view, this is the most basic classification of gemstones. It is not that hard to identify an artificial gemstone from the natural ones if you understand the physical properties well. Artificial are often placed in the categories of refined, treated gemstones. Owing to the improvement in technology and chemical products, it could be a difficult task to distinguish between an artificial and natural stone if you are buying it for the first time.

Some of the popular artificial/ synthetic gemstone varieties belong to:

  • Corundum
  • Zincite
  • Citrine
  • Spinel
  • Cubic zirconia            
  • Moissanite

Artificial varieties of sapphires, garnets, alexandrite, rubies and peridots are also available which can be distinguished based on UV radiation tests and hardness tests.

  • Gemstone Species

Based on the chemical composition of the gemstone, they are classified under the following categories:

  • Quartz
  • Beryl
  • Zircon
  • Opal
  • Zoisite
  • Corundum
  • Spodumene
  • Rocks and non-rocky gemstones

Some gemologists prefer to classy the gemstones as minerals and rocks. It is very similar to the non-mineral gemstone classification but includes only rocky constituents. Some of the most common rocky gemstones listed in the general classification are:

  • Bauxite
  • Soapstone
  • Anyolite
  • Tactite
  • Pallasite
  • Lapis lazuli
  • Epidosite

For example, lapis lazuli is classified as a rock as well as a semi-precious gemstone. The blue coloured stone is extracted from the mines in Pakistan, Afghanistan, Chile, Italy and Russia. Soapstone is also a metamorphic rock used for making steatite scarabs.

  • Precious and Semiprecious

Since 10th century AD, the gemstones are classified as precious and semi-precious items. Anything that demands a price tag of USD 100 per carat is precious. Depending on the gloss, flawless engineering and appeal, a precious stone can fetch higher price. It is a very crude way of classification though. Some semi-precious stones are prized at USD 1000 and above.
Semi-precious gemstones include:

  • Amethyst
  •  Citrine
  • Moonstone
  • Jasper
  • Garnet
  • Rose Quartz
  • Opal
  • Black onyx

There are many trade commission agencies around the world that now penalize the manufacturers of gemstone when they use the term ‘semi-precious’.