Untreated Natural Gems: Authentic Genuine Gemstones GemSelect

The idea of treating gemstones is nothing new. Nowadays, gem treatments are a way to supply the global demand for colored gemstones with a very limited 'natural' supply. Many gem types are always, or almost always, treated. The most common gem treatment is heat treatment, which is routinely applied to ruby and sapphire. Other gems such as emerald, tanzanite, blue zircon and blue topaz, are generally treated to produce their distinctive color; in fact it's virtually impossible to buy blue topaz that has not been irradiated. Even for the most expert gem buyers, determining whether a gemstone has been treated or enhanced is not always easy, and usually requires much more than just a jeweler's loupe.

Even with advanced gemological equipment, many treatments are still almost impossible to detect. So for many gem and jewelry buyers, one of the best ways to ensure the gem they're acquiring is completely natural and untreated, is through the selective buying of gemstone varieties that for the most part are never enhanced in any way. If you're searching for untreated gemstones, you may be surprised to discover we carry over 100 different untreated gem types.

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I have used this site for sseveral years now. All has been great. I started collection gems from GemSelect for years and wanted to collect at least one of most stones. I loved Safers because the mols is a 9 + and they come in every color. This is the best place to buy gems for the assortment and price. Great place to learn about gems too. Sometimes the shipping is a little on the long side. But I would give them a 9.9 out of 10 !!

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Gemstones A-Z

Buy Untreated Gemstones

0.7 ct Loose Purple Sapphire, 6.1 x 4.9 mm Oval Cut From Tanzania

1.73 ct Pink Morganite, 7.7 mm Round Cut From Afghanistan

7.1 ct Baguette Tiger's Eye, 14.2 x 10.2 mm From Thailand

17.87 ct Trillion Obsidian, 24.8 x 20.1 mm From the United States

2.8 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.1 x 10 mm

0.67 ct Loose Violet Sapphire, 6.3 x 4.3 mm Oval Cut From Tanzania

18.17 ct Round Maw-Sit-Sit, 14.1 mm From Myanmar

1.46 ct Orange Sunstone, 8.6 x 6.6 mm Oval Cut From India

2.36 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 9 x 7.5 mm

4.14 ct Oval Prehnite, 7.1 x 5.5 mm From South Africa

1.81 carat Orange Opal, Oval loose Opal from Ethiopia, Natural Gems, 8.2 x 6.3 mm

1.07 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 19.2 x 2.6 mm

5.46 carat Marquise Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 10.1 x 4.9 mm

1.39 ct Yellow Beryl, 8.8 x 6.6 mm Cushion Cut From Madagascar

0.58 carat Pink Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 6 x 4.9 mm

1.94 ct Blue Apatite, 5 x 3.9 mm Oval Cut From Madagascar

2.86 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10 x 9.9 mm

3.02 carat Blue Tanzanite, Marquise Cut loose Tanzanite from Tanzania, Natural Gem, 13.7 x 6.9 mm

1.5 carat Pink Tourmaline, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 6.8 mm

37.51 ct Oval Cat's Eye Aquamarine, 21 x 18.8 mm From Madagascar

0.85 carat Oval Emerald, loose Certified Emerald from Zambia, Natural Gem, 7.3 x 5 mm

4.5 ct Oval Cut Peridot, 7.9 x 5.6 mm From China

1.18 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gems, 7.1 x 4.9 mm

5.52 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 14.6 x 10.5 mm

29.76 ct Oval Cut Nuummite, 23.1 x 16.6 mm From India

1.55 ct Loose Round Cut Lapis Lazuli, 6 mm From Afghanistan

22.31 carat Cushion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 18 x 18 mm

1.69 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5 x 4.9 mm

0.6 ct Purple Spinel, 4.9 x 4.2 mm Cushion Cut From Tanzania

2.31 carat Emerald Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 9.1 x 7.2 mm

45.45 ct Oval Tiger's Eye Matrix, 35.9 x 18.5 mm From Mexico

2.54 ct Loose Round Concave Cut Mystic Quartz, 9.1 mm From Brazil

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