Phenomenal Gemstones: Loose Gems with Optical Phenomena; GemSelect

Phenomenal gemstones are extremely rare and highly prized; truly one of nature's most impressive creations. Gemstone optical phenomena is a result which varies, due to the way light either interacts or interferes with the structural anatomy of any given gemstone. Light interaction or interference can be seen in the form of reflection, refraction, diffraction, scattering, absorption and transmission. There are many different forms of gemstone phenomena, while some effects are quite common, simple and subtle; some are absolutely astounding and dramatic.

Phenomenal gems make excellent gifts for both novice and veteran gem collectors. Most would expect such exotic gemstones to come with a hefty price tag, but many phenomenal gems are surprisingly very affordable. Some examples of gemstone phenomena and popular gem types known to exhibit phenomenal qualities include adularescence, aventurescence, chatoyancy, asterism, iridescence, labradorescence, color change, play of color, pleochroism, fluorescence and tenebrescence.

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Gemstones A-Z

Buy Phenomenal Gemstones

35.66 ct Marquise Hematite, 27.6 x 12.1 mm From Brazil

1.67 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 8.1 x 6 mm

1.92 ct Oval Rubellite Tourmaline, 8.8 x 7.1 mm From Mozambique

28.97 carat Pear Jasper, loose Certified Jasper from Indonesia, Natural Untreated Gem, 26.5 x 24.3 mm

28.06 ct Fancy Fossil Coral, 21.7 x 12.1 mm From Indonesia

2.72 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gem, 8.1 x 8.1 mm

7.99 ct Asscher Cut Rose Quartz, 12.5 x 12.5 mm From South Africa

10.46 ct Oval Cat's Eye Opal, 16.1 x 11.2 mm From Madagascar

10.57 ct Marquise Ruby-Zoisite, 23.7 x 11.8 mm From Tanzania

2.31 ct Oval Cut Strawberry Quartz, 8.2 x 6.2 mm From Russia

0.38 ct Loose Orange Sapphire, 5 x 2.5 mm Marquise Cut From Tanzania

3.39 carat Yellow Citrine, Pear Shape loose Citrine from Brazil, Natural Untreated Gem, 12.1 x 10 mm

1.01 ct Round Onyx, 5.5 mm From Sri Lanka

50.65 ct Pencil Cut Strawberry Quartz, 41.8 x 12.5 mm From Russia

1.11 carat Pear Shape Opal, loose Certified Opal from Australia, Natural Untreated Gem, 12 x 7.1 mm

1.23 ct Oval Sillimanite Cat's Eye, 7.6 x 5 mm From Madagascar

2.63 carat Yellow Citrine, Square loose Citrine from Brazil, Natural Untreated Gem, 8.5 x 8.4 mm

1.58 carat White Zircon, Emerald Cut loose Zircon from Myanmar, Natural Gem, 7.1 x 5.1 mm

1.27 ct Oval Cut Kornerupine, 7.7 x 6.1 mm From Sri Lanka

1.95 carat Oval Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 7 x 5.1 mm

1.22 carat Pear Shape Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 7 x 4.8 mm

5.7 ct Pink Morganite, 16 x 10 mm Carved From Afghanistan

1.06 carat Oval Ruby, loose Certified Ruby from Myanmar, Natural Gem, 7 x 5 mm

6.3 carat Blue Zircon, Oval loose Zircon from Cambodia, Natural Gem, 9.5 x 8.1 mm

3.83 ct Round Checkerboard Smoky Quartz, 8.2 mm From Brazil

0.58 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5.1 x 3.9 mm

1.38 carat Yellow Citrine, Heart loose Citrine from Brazil, Natural Untreated Gems, 6.1 x 6 mm

9.11 ct Yellow Quartz, 16.7 x 13.6 mm Carved From Brazil

8.75 ct Oval Actinolite Cat's Eye, 13.9 x 12.4 mm From the United States

2.57 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.1 x 5.1 mm

34.73 ct Oval Jasper, 35.2 x 19.6 mm From Indonesia

22.94 carat Swiss Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 17.9 x 14.3 mm

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