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Gemstones

A gemstone is a piece of mineral crystal, which is used to make jewelry or other adornments, once it is cut and polished.

.09 ct 2.6mm round blue Sapphire gemstone

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.09 ct 2.6mm round blue Sapphire gemstone

0.20ct Oval-shaped Emerald Gemstone

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0.20ct Oval-shaped Emerald Gemstone

0.20ctw set of two round 3.5mm Rubellite Tourmaline Gemstone

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0.20ctw set of two round 3.5mm Rubellite Tourmaline Gemstone

0.22ct Marquise-shaped Emerald Gemstone

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0.22ct Marquise-shaped Emerald Gemstone

0.23ct Trilliant-cut Emerald Gemstone

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0.23ct Trilliant-cut Emerald Gemstone

0.25ct Pear-shaped Emerald Gemstone

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0.25ct Pear-shaped Emerald Gemstone

0.30ct Round Unheated Greyish-blue Montana Sapphire Gemstone (Missouri river near Helena)

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0.30ct Round Unheated Greyish-blue Montana Sapphire Gemstone (Missouri river near Helena)

0.34ct Round Emerald Gemstone

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0.34ct Round Emerald Gemstone

0.41ct Heart-shaped Emerald Gemstone

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0.41ct Heart-shaped Emerald Gemstone

0.50ct Round 6mm Mexican Fire Opal Gemstone

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0.50ct Round 6mm Mexican Fire Opal Gemstone

0.60ct Emerald-cut 7x4mm Unheated Blue Montana Sapphire Gemstone

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0.60ct Emerald-cut 7x4mm Unheated Blue Montana Sapphire Gemstone

0.60ct Round 6.5mm Ethiopian Opal Gemstone

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0.60ct Round 6.5mm Ethiopian Opal Gemstone

0.60ct Round 6mm Mexican Fire Opal Gemstone

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0.60ct Round 6mm Mexican Fire Opal Gemstone

0.65ct Square-cut Unheated Yellowish Green Montana Sapphire Gemstone (Missouri river near Helena)

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0.65ct Square-cut Unheated Yellowish Green Montana Sapphire Gemstone (Missouri river near Helena)

0.75ct Trilliant-cut 5x5mm Spessartite Garnet Gemstone

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0.75ct Trilliant-cut 5x5mm Spessartite Garnet Gemstone

0.77ct Pear-shaped 7.4 x 4mm Burmese Ruby Gemstone

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0.77ct Pear-shaped 7.4 x 4mm Burmese Ruby Gemstone

0.80ct Pear-shaped Indicolite Tourmaline Gemstone

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0.80ct Pear-shaped Indicolite Tourmaline Gemstone

0.84ct octagon-cut Colombia Emerald Gemstone from the Chivor Mine

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0.84ct octagon-cut Colombia Emerald Gemstone from the Chivor Mine

0.85ct Octagon-cut 5 x 4mm Unheated Pink Montana Sapphire Gemstone

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0.85ct Octagon-cut 5 x 4mm Unheated Pink Montana Sapphire Gemstone

0.85ct Round 7mm Mexican Fire Opal Gemstone

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0.85ct Round 7mm Mexican Fire Opal Gemstone

0.90ct Round Unheated Colorless Montana Sapphire Gemstone (Missouri river near Helena)

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0.90ct Round Unheated Colorless Montana Sapphire Gemstone (Missouri river near Helena)

0.93ct Round 6mm Spessartite Garnet Gemstone

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0.93ct Round 6mm Spessartite Garnet Gemstone

0.95ct Round 8mm Ethiopian Opal Gemstone

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0.95ct Round 8mm Ethiopian Opal Gemstone

0.97ct Oval-shaped Bluish Green Sapphire Gemstone

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0.97ct Oval-shaped Bluish Green Sapphire Gemstone