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15.4 carat Oval Dendritic Agate, loose Certified Dendritic Agate from India, Natural Untreated Gem, 22.4 x 16.3 mm, Photo A

15.4 carat Oval Dendritic Agate, loose Certified Dendritic Agate from India, Natural Untreated Gem, 22.4 x 16.3 mm

Dendritic Agate

15.40ct1 pc
$ 7.70
22.4 x 16.3 mm
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4.69 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 9 x 7 mm, Photo A

4.69 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 9 x 7 mm

Tanzanite

4.69ct total2 pcs
$ 40.76
9 x 7 mm
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0.68 carat Pink Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 7.7 x 5 mm, Photo A

0.68 carat Pink Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 7.7 x 5 mm

Morganite

0.68ct1 pc
$ 41.14
7.7 x 5 mm
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1.68 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.3 x 4.2 mm, Photo A

1.68 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.3 x 4.2 mm

Zircon

1.68ct total2 pcs
$ 10.13
6.3 x 4.2 mm
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2.49 ct Marquise Cut Smoky Quartz, 12.9 x 8 mm From Brazil, Photo A

2.49 ct Marquise Cut Smoky Quartz, 12.9 x 8 mm From Brazil

Smoky Quartz

2.49ct1 pc
$ 9.54
12.9 x 8 mm
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0.91 carat Green Sapphire, Oval loose Sapphire from Tanzania, Natural Gem, 5.9 x 5 mm, Photo A
Click for Product Video (462665)

0.91 carat Green Sapphire, Oval loose Sapphire from Tanzania, Natural Gem, 5.9 x 5 mm

Sapphire

0.91ct1 pc
$ 64.39
5.9 x 5 mm
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1.06 ct Loose Orange Sapphire, 6 x 3.9 mm Oval Cut From Tanzania, Photo A

1.06 ct Loose Orange Sapphire, 6 x 3.9 mm Oval Cut From Tanzania

Sapphire

1.06ct total2 pcs
$ 159.00
6 x 3.9 mm
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3.35 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.1 x 5.2 mm, Photo A

3.35 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.1 x 5.2 mm

Topaz

3.35ct total4 pcs
$ 25.80
7.1 x 5.2 mm
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35.34 ct Loose Green Amazonite, 38.7 x 10.9 mm Pencil Cut From Madagascar, Photo A

35.34 ct Loose Green Amazonite, 38.7 x 10.9 mm Pencil Cut From Madagascar

Amazonite

35.34ct1 pc
$ 7.07
38.7 x 10.9 mm
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6.52 ct Black Spinel, 9.1 mm Round Rose Cut From Thailand, Photo A

6.52 ct Black Spinel, 9.1 mm Round Rose Cut From Thailand

Spinel

6.52ct total2 pcs
$ 21.52
9.1 mm
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10.67 ct Oval Pietersite, 21.5 x 11.3 mm From Namibia, Photo A
Click for Product Video (333907)

10.67 ct Oval Pietersite, 21.5 x 11.3 mm From Namibia

Pietersite

10.67ct1 pc
$ 51.52
21.5 x 11.3 mm
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3.04 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gems, 8.2 x 6 mm, Photo A

3.04 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gems, 8.2 x 6 mm

Citrine

3.04ct total2 pcs
$ 21.20
8.2 x 6 mm
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17.36 ct Yellow Quartz, 23.5 mm Briolette From Brazil, Photo A

17.36 ct Yellow Quartz, 23.5 mm Briolette From Brazil

Quartz

17.36ct1 pc
$ 47.74
23.5 x 11.8 mm
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1.47 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5 x 4.9 mm, Photo A

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

Pyrope Garnet

1.47ct total2 pcs
$ 11.32
5 x 4.9 mm
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2.22 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gem, 9 x 9 mm, Photo A

2.22 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gem, 9 x 9 mm

Citrine

2.22ct1 pc
$ 14.65
9 x 9 mm
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19.53 ct Blue Green Turquoise, 20.2 x 15.9 mm Oval Cut From the United States, Photo A

19.53 ct Blue Green Turquoise, 20.2 x 15.9 mm Oval Cut From the United States

Turquoise

19.53ct1 pc
$ 58.98
20.2 x 15.9 mm
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2.41 carat Oval Rhodolite Garnet, loose Certified Rhodolite Garnet from Tanzania, Natural Untreated Gems, 5 x 4 mm, Photo A

2.41 carat Oval Rhodolite Garnet, loose Certified Rhodolite Garnet from Tanzania, Natural Untreated Gems, 5 x 4 mm

Rhodolite Garnet

2.41ct total5 pcs
$ 26.17
5 x 4 mm
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4.25 ct Brown Moonstone, 12.1 x 10 mm Oval Cut From India, Photo A

4.25 ct Brown Moonstone, 12.1 x 10 mm Oval Cut From India

Moonstone

4.25ct1 pc
$ 9.39
12.1 x 10 mm
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7.27 ct Black Spinel, 12.1 mm Round Rose Cut From Thailand, Photo A

7.27 ct Black Spinel, 12.1 mm Round Rose Cut From Thailand

Spinel

7.27ct1 pc
$ 23.99
12.1 mm
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1.79 carat Emerald Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 8.9 x 7.1 mm, Photo A

1.79 carat Emerald Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 8.9 x 7.1 mm

Amethyst

1.79ct1 pc
$ 13.78
8.9 x 7.1 mm
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0.62 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gem, 5.2 mm, Photo A

0.62 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gem, 5.2 mm

Sapphire

0.62ct1 pc
$ 370.55
5.2 mm
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60.55 ct Cushion Charoite, 37.1 x 22.8 mm From Russia, Photo A

60.55 ct Cushion Charoite, 37.1 x 22.8 mm From Russia

Charoite

60.55ct1 pc
$ 97.24
37.1 x 22.8 mm
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3.14 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 12.9 x 8.8 mm, Photo A

3.14 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 12.9 x 8.8 mm

Amethyst

3.14ct1 pc
$ 24.18
12.9 x 8.8 mm
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3.28 ct Yellow Andesine Labradorite, 10.6 x 8.3 mm Oval Cut From Congo, Photo A

3.28 ct Yellow Andesine Labradorite, 10.6 x 8.3 mm Oval Cut From Congo

Andesine Labradorite

3.28ct1 pc
$ 72.16
10.6 x 8.3 mm
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3.97 ct Marquise Rutile Quartz, 14.1 x 7.1 mm From India, Photo A

3.97 ct Marquise Rutile Quartz, 14.1 x 7.1 mm From India

Rutile Quartz

3.97ct1 pc
$ 10.75
14.1 x 7.1 mm
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55.44 ct Oval Cut Rose Quartz, 32.9 x 20.9 mm From South Africa, Photo A

55.44 ct Oval Cut Rose Quartz, 32.9 x 20.9 mm From South Africa

Rose Quartz

55.44ct1 pc
$ 110.88
32.9 x 20.9 mm
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0.15 carat Square Emerald, loose Certified Emerald from Colombia, Natural Gem, 3.9 x 2.8 mm, Photo A

0.15 carat Square Emerald, loose Certified Emerald from Colombia, Natural Gem, 3.9 x 2.8 mm

Emerald

0.15ct1 pc
$ 12.00
3.9 x 2.8 mm
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0.57 ct Loose Yellow Sapphire, 4.6 x 4.6 mm Heart Cut From Tanzania, Photo A

0.57 ct Loose Yellow Sapphire, 4.6 x 4.6 mm Heart Cut From Tanzania

Sapphire

0.57ct1 pc
$ 19.95
4.6 x 4.6 mm
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3.16 carat Rondelle Cut Tourmaline, loose Certified Tourmaline from Mozambique, Natural Untreated Gems, 4.3 x 4.1 mm, Photo A

3.16 carat Rondelle Cut Tourmaline, loose Certified Tourmaline from Mozambique, Natural Untreated Gems, 4.3 x 4.1 mm

Tourmaline

3.16ct total8 pcs
$ 22.12
4.3 x 4.1 mm
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4.93 carat Bi-color Ametrine, Emerald-Cut loose Ametrine from Brazil, Natural Untreated Gem, 11.4 x 8.7 mm, Photo A

4.93 carat Bi-color Ametrine, Emerald-Cut loose Ametrine from Brazil, Natural Untreated Gem, 11.4 x 8.7 mm

Ametrine

4.93ct1 pc
$ 63.10
11.4 x 8.7 mm
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29.52 ct Oval Moss Agate, 28.9 x 13.3 mm From India, Photo A

29.52 ct Oval Moss Agate, 28.9 x 13.3 mm From India

Moss Agate

29.52ct total2 pcs
$ 29.52
28.9 x 13.3 mm
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1.8 ct Yellow Sphene, 8.7 x 6.6 mm Oval Cut From Sri Lanka, Photo A
Click for Product Video (390822)

1.8 ct Yellow Sphene, 8.7 x 6.6 mm Oval Cut From Sri Lanka

Sphene

1.80ct1 pc
$ 87.12
8.7 x 6.6 mm
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Photos are of Actual Products for Sale

Alexandrite is one of the rarest of all colored gemstones and is famed for its color change from green in daylight to red under incandescent light. Fine faceted alexandrite over 1 carat is more valuable than sapphire, ruby or emerald.

Alexandrite is a variety of chrysoberyl, with an excellent hardness of 8.5 on the Mohs scale, placing it right behind sapphire and ruby. Alexandrite is rare because of its chemical composition. Chrysoberyl is colored by traces iron and titanium, but alexandrite is also colored by chromium, which gives it the emerald green hue in daylight.

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