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3.59 ct Round Prehnite, 6.2 mm From South Africa, Photo A

3.59 ct Round Prehnite, 6.2 mm From South Africa

Prehnite

3.59ct total3 pcs
$ 19.75
6.2 mm
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0.88 ct Oval Cut Peridot, 5.9 x 3.9 mm From China, Photo A

0.88 ct Oval Cut Peridot, 5.9 x 3.9 mm From China

Peridot

0.88ct total2 pcs
$ 7.74
5.9 x 3.9 mm
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2.97 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Sri Lanka, Natural Untreated Gems, 7 x 6.9 mm, Photo A
Click for Product Video (338676)

2.97 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Sri Lanka, Natural Untreated Gems, 7 x 6.9 mm

Hessonite Garnet

2.97ct total2 pcs
$ 135.59
7 x 6.9 mm
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0.51 ct Loose Yellow Sapphire, 4.6 x 4.6 mm Heart Cut From Tanzania, Photo A

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

Sapphire

0.51ct1 pc
$ 15.30
4.6 x 4.6 mm
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1.4 carat London Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gem, 9.9 x 5.1 mm, Photo A

1.4 carat London Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gem, 9.9 x 5.1 mm

Topaz

1.40ct1 pc
$ 11.20
9.9 x 5.1 mm
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21.45 carat Bi-color Ametrine, Marquise-Cut loose Ametrine from Brazil, Natural Untreated Gem, 30.2 x 13.4 mm, Photo A

21.45 carat Bi-color Ametrine, Marquise-Cut loose Ametrine from Brazil, Natural Untreated Gem, 30.2 x 13.4 mm

Ametrine

21.45ct1 pc
$ 165.17
30.2 x 13.4 mm
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0.43 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 6 x 4.2 mm, Photo A

0.43 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 6 x 4.2 mm

Amethyst

0.43ct1 pc
$ 3.44
6 x 4.2 mm
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3.3 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gems, 6.1 x 6 mm, Photo A

3.3 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gems, 6.1 x 6 mm

Hessonite Garnet

3.30ct total2 pcs
$ 55.25
6.1 x 6 mm
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0.32 ct Loose Purple Sapphire, 5.1 x 4 mm Oval Cut From Tanzania, Photo A

0.32 ct Loose Purple Sapphire, 5.1 x 4 mm Oval Cut From Tanzania

Sapphire

0.32ct1 pc
$ 31.98
5.1 x 4 mm
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3.61 carat Pink Topaz, Round loose Topaz from Brazil, Natural Gem, 9.1 mm, Photo A

3.61 carat Pink Topaz, Round loose Topaz from Brazil, Natural Gem, 9.1 mm

Topaz

3.61ct1 pc
$ 28.88
9.1 mm
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5.72 ct Oval Black Opal, 9.1 x 7.1 mm From Ethiopia, Photo A

5.72 ct Oval Black Opal, 9.1 x 7.1 mm From Ethiopia

Black Opal

5.72ct total4 pcs
$ 171.60
9.1 x 7.1 mm
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3.45 ct Loose Marquise Pietersite, 17.2 x 6.2 mm From Namibia, Photo A

3.45 ct Loose Marquise Pietersite, 17.2 x 6.2 mm From Namibia

Pietersite

3.45ct1 pc
$ 8.38
17.2 x 6.2 mm
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0.5 ct Violet Spinel, 5.1 mm Round Cut From Tanzania, Photo A

0.5 ct Violet Spinel, 5.1 mm Round Cut From Tanzania

Spinel

0.50ct1 pc
$ 25.16
5.1 mm
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14.51 carat Black Tourmaline, Emerald Cut loose Tourmaline from Tanzania, Natural Untreated Gem, 18.8 x 10.7 mm, Photo A

14.51 carat Black Tourmaline, Emerald Cut loose Tourmaline from Tanzania, Natural Untreated Gem, 18.8 x 10.7 mm

Tourmaline

14.51ct1 pc
$ 72.55
18.8 x 10.7 mm
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1.5 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 8.1 x 8 mm, Photo A

1.5 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 8.1 x 8 mm

Amethyst

1.50ct1 pc
$ 11.55
8.1 x 8 mm
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5.18 ct Loose Oval Star Ruby, 9.9 x 9.1 mm From Madagascar, Photo A

5.18 ct Loose Oval Star Ruby, 9.9 x 9.1 mm From Madagascar

Star Ruby

5.18ct1 pc
$ 82.88
9.9 x 9.1 mm
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10 ct Oval Star Ruby, 12.9 x 10.8 mm From Madagascar, Photo A

10 ct Oval Star Ruby, 12.9 x 10.8 mm From Madagascar

Star Ruby

10.00ct1 pc
$ 132.00
12.9 x 10.8 mm
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3.35 carat Emerald Cut Emerald, loose Certified Emerald from Colombia, Natural Gem, 9.1 x 8.9 mm, Photo A
Click for Product Video (503889)

3.35 carat Emerald Cut Emerald, loose Certified Emerald from Colombia, Natural Gem, 9.1 x 8.9 mm

Emerald

3.35ct1 pc
$ 3,211.38
9.1 x 8.9 mm
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10.97 ct Gray Star Sapphire, 11.5 mm Round Cut From Myanmar, Photo A
Click for Product Video (470800)

10.97 ct Gray Star Sapphire, 11.5 mm Round Cut From Myanmar

Star Sapphire

10.97ct1 pc
$ 422.35
11.5 mm
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6.21 carat Carved Leaf Ruby, loose Certified Ruby from Madagascar, Natural Gems, 12.2 x 7.3 mm, Photo A

6.21 carat Carved Leaf Ruby, loose Certified Ruby from Madagascar, Natural Gems, 12.2 x 7.3 mm

Ruby

6.21ct total2 pcs
$ 124.20
12.2 x 7.3 mm
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3.09 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5 mm, Photo A

3.09 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5 mm

Topaz

3.09ct total4 pcs
$ 23.79
7 x 5 mm
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8.3 carat Pear Boulder Opal, loose Certified Boulder Opal from Australia, Natural Untreated Gem, 19.3 x 11 mm, Photo A

8.3 carat Pear Boulder Opal, loose Certified Boulder Opal from Australia, Natural Untreated Gem, 19.3 x 11 mm

Boulder Opal

8.30ct1 pc
$ 63.91
19.3 x 11 mm
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2.21 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 26.9 x 3 mm, Photo A

2.21 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 26.9 x 3 mm

Tourmaline

2.21ct1 pc
$ 55.25
26.9 x 3 mm
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2 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.5 x 7 mm, Photo A

2 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.5 x 7 mm

Hessonite Garnet

2.00ct1 pc
$ 40.00
8.5 x 7 mm
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4.87 carat White Topaz, Round loose Topaz from Brazil, Natural Untreated Gem, 10.9 mm, Photo A

4.87 carat White Topaz, Round loose Topaz from Brazil, Natural Untreated Gem, 10.9 mm

Topaz

4.87ct1 pc
$ 26.79
10.9 mm
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19.95 ct Oval Jasper, 25 x 18 mm From Indonesia, Photo A

19.95 ct Oval Jasper, 25 x 18 mm From Indonesia

Jasper

19.95ct1 pc
$ 32.91
25 x 18 mm
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3.65 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 10.3 x 8.2 mm, Photo A

3.65 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 10.3 x 8.2 mm

Topaz

3.65ct1 pc
$ 28.47
10.3 x 8.2 mm
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8.89 ct Diamond Cut Smoky Quartz, 13.6 mm From Brazil, Photo A

8.89 ct Diamond Cut Smoky Quartz, 13.6 mm From Brazil

Smoky Quartz

8.89ct1 pc
$ 17.50
13.6 mm
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5.58 carat Sky Blue Topaz, Emerald Cut loose Topaz from Brazil, Natural Gems, 8.9 x 7.1 mm, Photo A

5.58 carat Sky Blue Topaz, Emerald Cut loose Topaz from Brazil, Natural Gems, 8.9 x 7.1 mm

Topaz

5.58ct total2 pcs
$ 42.78
8.9 x 7.1 mm
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3.77 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 12 x 6 mm, Photo A

3.77 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 12 x 6 mm

Pyrope Garnet

3.77ct total2 pcs
$ 29.03
12 x 6 mm
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15.39 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 17.9 x 17.5 mm, Photo A

15.39 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 17.9 x 17.5 mm

Ammolite

15.39ct1 pc
$ 169.29
17.9 x 17.5 mm
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1.14 ct Marquise Cut Peridot, 8.3 x 4.1 mm From China, Photo A

1.14 ct Marquise Cut Peridot, 8.3 x 4.1 mm From China

Peridot

1.14ct total2 pcs
$ 18.24
8.3 x 4.1 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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