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Natural African Amethyst AAACOLOR: Natural African Amethyst is purple gem from light purple to

intense royal purple mauve and violet.

ORIGIN: The large deposits of amethyst were discovered in Brazil in the 19th century. Today the finest amethyst comes from Zambia in Africa.

CHEMICAL COMPOSITION: Amethyst is a macro crystalline variety of Quartz with the chemical formula SiO2 (Silicon Dioxide). Experts attribute the purple colour of amethyst to small amounts of Iron Oxide (Fe2O3) impurities (approximately 40 parts per million) at specific sites in the crystal structure of quartz.





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Natural Brazilian Amethyst AAACOLOR: Natural Brazilian Amethyst is LIGHT purple with no visible

colour zoning.

ORIGIN: Brazil, Uruguay

CHEMICAL COMPOSITION: Amethyst is a macro crystalline variety of Quartz with the chemical formula SiO2 (Silicon Dioxide). Experts attribute the purple colour of amethyst to small amounts of Iron Oxide (Fe2O3) impurities (approximately 40 parts per million) at specific sites in the crystal structure of quartz.





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Natural Citrine AAACOLOR: Natural Citrine is yellow to golden-orange gemstone

CHEMICAL COMPOSITION: SiO2 (silicon dioxide)

CUT: Round brilliants and ovals are most common. Step cuts (emerald cuts) and other fancy cuts, such as scissor-cuts or Portuguese-cuts are also quite popular. Citrine gemstones can be found in just about every shape imaginable, including pears, squares, trillions, rounds, ovals, cushions and heart shapes.





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Natural Mozambique Garnet

Garnet is not a single mineral, but describes a group of several closely related minerals. Garnets come in a variety of colors and have many different varieties. However, the most widely-known color of Garnet gemstones is dark red.

COLOR: Natural Mozambique Garnet is deep red with hints of orange and brown, reminds us of an autumn harvest or Indian summer.





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Natural Blue Star Sapphire

COLOR: It has a nice Blue Colour.ORIGIN: MyanmarCHEMICAL COMPOSITION: Al2O3 Corundum (Aluminium Oxide)CUT: Oval Cabochan. Top QualitySPECIFIC GRAVITY: 3.95-4.03REFRACTIVE INDEX: 1.762-1.788HARDNESS: 9(Hardest after Diamond)





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Natural White Topaz

White topaz, a transparent semiprecious stone, has often been mistaken for a diamond because of the similarities in clarity between the two stones and because both gems are hard, although topaz stones are not quite as durable as diamonds

COLOR: Natural white Topaz, as the name suggests has a clear colour.

ORIGIN: Deposits of topaz have been found in Brazil, Afghanistan, Australia, Myanmar (Burma), China, Germany, Japan, Madagascar, Mexico, Namibia, Nigeria, Pakistan, Russia, Zimbabwe, Sri Lanka, Ukraine and the USA.





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Natural Smoky Quartz

Smoky topaz is another name given to smoky quartz. Smoky topaz is made of silicon dioxide.

Smoky topaz resembles clear quartz in every manner except color. As the name suggests, smoky topaz has a smokiness to it. Shades can range from light tan to dark chocolate, although the stone is somewhat transparent





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Natural London Blue Topaz

Real London Blue Topaz – Genuine London Blue Topaz – Natural London Blue Topaz

COLOR: London blue topaz is a medium to dark greyish blue, sometimes described as “steely” or “inky”.

ORIGIN: Brazil, Afghanistan, Australia, Myanmar (Burma), China, Germany, Japan, Madagascar, Mexico, Namibia, Nigeria, Pakistan, Russia, Zimbabwe, Sri Lanka, Ukraine and the USA.





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Natural Swiss Blue Topaz

Swiss Blue Topaz – Genuine Swiss Blue Topaz – Natural Swiss Blue Topaz

COLOR: Natural Swiss Blue Topaz is cool blue color.

ORIGIN: Germany, Siberia and Brazil

CHEMICAL COMPOSITION: Al2SiO4 (F,OH)2 (aluminum, hydroxyl-flourine silicate)

CUT: Round, Oval, Pear, Square, Emerald, Marquise, Trillion, Heart

SPECIFIC GRAVITY: 2.64 – 2.65





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Natural Peridot

COLOR: Natural Peridot is oldest gemstone available in lovely Olive Green colour with slight hint of gold.

ORIGIN: Very fine specimens come from Burma, and new material from Pakistan has generated considerable excitement in the gemstone world. Arizona and New Mexico in the USA are important producers of commercial grade Peridot. Additionally, Vietnam and China have become increasingly important suppliers.





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Natural IoliteCOLOR: Varies in color from sapphire-blue to dark blue-violet and yellowish-gray to light blue, depending on the angle of light. Iolite does not need to be subjected to treatments to improve their appearance.

ORIGIN: India, Sri Lanka, Mozambique, Zimbabwe, and Brazil.

CHEMICAL COMPOSITION: Mg2Al4Si5O18 (Magnesium Aluminium Silicate)

CUT: Round, Oval, Pear, Square, Emerald, Marquise, Trillion, Heart, Baguette, Oval Cabochan, Round Cabochan





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Natural Green Amethyst (Prasiolite)

COLOR: Green Amethyst has pale green colour.ORIGIN: Brazil, USACHEMICAL COMPOSITION: SiO2(silicon dioxide)CUT: Round, Oval, Pear, Square, Emerald, Marquise, Trillion, HeartSPECIFIC GRAVITY: 3.49 – 3.57REFRACTIVE INDEX: 1.543–1.553





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Natural Rhodolite Garnet

Rhodolite has quickly grown into a standard jewelry gemstone. It has an attractive color, and is often very clean being without any flaws and inclusions

COLOR: Natural Rhodolite Garnet describes a rose-red form of Garnet that has a lighter tone and more purplish color than typical Garnet gemstones. It is usually an intermediary variety between the Pyrope and Almandine series, usually containing more magnesium than iron in its chemical structure, thus leaning closer towards Pyrope. It is often regarded as a variety of Pyrope





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Natural Red GarnetCOLOR: Natural Red Garnet is Dark-red. It is a very strong color – the color of fire and blood.

ORIGIN: Brazil, India, Madagascar, Sri Lanka and the USA. Smaller deposits exist in Austria and the Czech Republic.

CHEMICAL COMPOSITION: Fe3Al2 (SiO4)3 (Iron aluminium silicate)

CUT: Round, Baguette, Oval, Pear, Square, Emerald, Marquise, Trillion, Heart

SPECIFIC GRAVITY: 3.6-4.3

REFRACTIVE INDEX: 1.714 – 1.888





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CONTACT USGems N Gems

Bangkok, ThailandSkype: samgemsngems

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lab created emerald

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