Information on all Gemstones
Categorized, then alphabetized.
PRECIOUS Diamond Emerald Ruby Sapphire SECONDARY PRECIOUS Alexandrite Demantoid Garnet Opal Paraiba Tourmaline Pearl Tanzanite SEMI PRECIOUS Amethyst Andalusite Aquamarine Chrome Diopside Citrine Garnet Heliodor Indicolite (blue tourmaline) Iolite Iolite Value Kunzite Moldavite Peridot Rubelite (pink tourmaline) Spessartine Topaz Tourmaline Tsavorite OPAQUE Amber Aventurine Carnelian Jade Jasper Labradorite Malachite Moonstone Onyx Rose Quartz Sunstone Turquoise
General Gemstone Information
Gemstone Meanings and Symbology
Engagement Rings
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Price level:  [ what's this? ]
The value of an iolite gemstone is determined by its color, clarity, size and cut. The most valuable iolite gems are brilliant, saturated blue-violet, good clarity, at least 3 carats and cut to reflect the maximum light.
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| Perfect: These |
Bad cut: This is |
Beads: This is a very intense |
Cabochon: This |
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| Too Pale: These sapphires are a very pale color. They are mostly shades of white and grey. Sapphires this color are not very valuable. |
Too Grey: This is a very beautiful sapphire but its color is more grey than ideal. |
Too Dark: This is a very intense lovely color but it tends towards navy or midnight blue instead of the most ideal bright blue |
Cornflower Blue: This is the best color for blue sapphire. Sapphires this color are very rare and, if they also have good clarity, are quite expensive. |
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| Too Pale: These sapphires are a very pale color. They are mostly shades of white and grey. Sapphires this color are not very valuable. |
Too Grey: This is a very beautiful sapphire but its color is more grey than ideal. |
Too Dark: This is a very intense lovely color but it tends towards navy or midnight blue instead of the most ideal bright blue |
Cornflower Blue: This is the best color for blue sapphire. Sapphires this color are very rare and, if they also have good clarity, are quite expensive. |
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| Too Pale: These sapphires are a very pale color. They are mostly shades of white and grey. Sapphires this color are not very valuable. |
Too Grey: This is a very beautiful sapphire but its color is more grey than ideal. |
Too Dark: This is a very intense lovely color but it tends towards navy or midnight blue instead of the most ideal bright blue |
Cornflower Blue: This is the best color for blue sapphire. Sapphires this color are very rare and, if they also have good clarity, are quite expensive. |
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| Too Pale: These sapphires are a very pale color. They are mostly shades of white and grey. Sapphires this color are not very valuable. |
Too Grey: This is a very beautiful sapphire but its color is more grey than ideal. |
Too Dark: This is a very intense lovely color but it tends towards navy or midnight blue instead of the most ideal bright blue |
Cornflower Blue: This is the best color for blue sapphire. Sapphires this color are very rare and, if they also have good clarity, are quite expensive. |
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