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1.57 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5 x 3.1 mm, Photo A

1.57 carat Blue Tanzanite, Pear Shape loose Tanzanite from Tanzania, Natural Gems, 5 x 3.1 mm

Tanzanite

1.57ct total8 pcs
$ 60.45
5 x 3.1 mm
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0.33 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.7 mm, Photo A

0.33 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.7 mm

Ruby

0.33ct1 pc
$ 109.27
3.7 mm
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4.5 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 9.8 x 7.9 mm, Photo A

4.5 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 9.8 x 7.9 mm

Citrine

4.50ct total2 pcs
$ 24.75
9.8 x 7.9 mm
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38.44 ct Oval Cat's Eye Opal, 25 x 18.3 mm From Brazil, Photo A

38.44 ct Oval Cat's Eye Opal, 25 x 18.3 mm From Brazil

Cat's Eye Opal

38.44ct1 pc
$ 96.10
25 x 18.3 mm
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0.86 ct Loose Round Cut Lapis Lazuli, 6.1 mm From Afghanistan, Photo A

0.86 ct Loose Round Cut Lapis Lazuli, 6.1 mm From Afghanistan

Lapis Lazuli

0.86ct1 pc
$ 1.38
6.1 mm
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1.44 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7 x 5 mm, Photo A

1.44 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7 x 5 mm

Hessonite Garnet

1.44ct1 pc
$ 28.80
7 x 5 mm
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11.56 carat Pear Psilomelane Dendrite, loose Certified Psilomelane Dendrite from Mexico, Natural Untreated Gem, 21.5 x 16.2 mm, Photo A

11.56 carat Pear Psilomelane Dendrite, loose Certified Psilomelane Dendrite from Mexico, Natural Untreated Gem, 21.5 x 16.2 mm

Psilomelane Dendrite

11.56ct1 pc
$ 9.36
21.5 x 16.2 mm
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19.49 ct Oval Rainbow Moonstone, 20.7 x 15.4 mm From the United States, Photo A

19.49 ct Oval Rainbow Moonstone, 20.7 x 15.4 mm From the United States

Rainbow Moonstone

19.49ct1 pc
$ 19.49
20.7 x 15.4 mm
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24.28 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 35.5 x 17.1 mm, Photo A

24.28 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 35.5 x 17.1 mm

Ammolite

24.28ct1 pc
$ 267.08
35.5 x 17.1 mm
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0.9 carat Oval Ruby, loose Certified Ruby from Myanmar, Natural Gems, 5.2 x 3.9 mm, Photo A

0.9 carat Oval Ruby, loose Certified Ruby from Myanmar, Natural Gems, 5.2 x 3.9 mm

Ruby

0.90ct total2 pcs
$ 252.00
5.2 x 3.9 mm
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0.83 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 6.8 x 4.9 mm, Photo A

0.83 carat Oval Emerald, loose Certified Emerald from Colombia, Natural Gem, 6.8 x 4.9 mm

Emerald

0.83ct1 pc
$ 66.40
6.8 x 4.9 mm
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6.54 ct Fancy Fire Agate, 15.7 x 9.9 mm From Mexico, Photo A

6.54 ct Fancy Fire Agate, 15.7 x 9.9 mm From Mexico

Fire Agate

6.54ct1 pc
$ 50.49
15.7 x 9.9 mm
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2.84 ct Round Cut Andalusite, 4.1 mm From Brazil, Photo A

2.84 ct Round Cut Andalusite, 4.1 mm From Brazil

Andalusite

2.84ct total12 pcs
$ 127.80
4.1 mm
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3.47 carat Swiss Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gem, 14.9 x 6.9 mm, Photo A

3.47 carat Swiss Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gem, 14.9 x 6.9 mm

Topaz

3.47ct1 pc
$ 26.72
14.9 x 6.9 mm
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8.86 ct Octagon Cut Smoky Quartz, 12.4 x 12.4 mm From Brazil, Photo A

8.86 ct Octagon Cut Smoky Quartz, 12.4 x 12.4 mm From Brazil

Smoky Quartz

8.86ct1 pc
$ 17.45
12.4 x 12.4 mm
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0.4 carat Pear Shape Ruby, loose Certified Ruby from Myanmar, Natural Gem, 5.1 x 4.1 mm, Photo A

0.4 carat Pear Shape Ruby, loose Certified Ruby from Myanmar, Natural Gem, 5.1 x 4.1 mm

Ruby

0.40ct1 pc
$ 120.00
5.1 x 4.1 mm
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3.59 ct Oval Cat's Eye Opal, 12.4 x 9.2 mm From Madagascar, Photo A

3.59 ct Oval Cat's Eye Opal, 12.4 x 9.2 mm From Madagascar

Cat's Eye Opal

3.59ct1 pc
$ 10.77
12.4 x 9.2 mm
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0.75 carat London Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 6.9 x 5 mm, Photo A

0.75 carat London Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 6.9 x 5 mm

Topaz

0.75ct1 pc
$ 6.00
6.9 x 5 mm
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18.59 ct Baguette Jasper, 23.5 x 16.4 mm From Indonesia, Photo A

18.59 ct Baguette Jasper, 23.5 x 16.4 mm From Indonesia

Jasper

18.59ct1 pc
$ 11.66
23.5 x 16.4 mm
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1.84 ct Pink Morganite, 7.4 mm Round Cut From Afghanistan, Photo A

1.84 ct Pink Morganite, 7.4 mm Round Cut From Afghanistan

Morganite

1.84ct1 pc
$ 141.68
7.4 mm
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1.32 ct Blue Apatite, 5 x 4 mm Oval Cut From Madagascar, Photo A

1.32 ct Blue Apatite, 5 x 4 mm Oval Cut From Madagascar

Apatite

1.32ct total4 pcs
$ 27.24
5 x 4 mm
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0.71 ct Yellow Sphalerite, 5 mm Round Cut From Spain, Photo A

0.71 ct Yellow Sphalerite, 5 mm Round Cut From Spain

Sphalerite

0.71ct1 pc
$ 35.50
5 mm
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2.31 ct Yellow Sphene, 7.1 x 5.8 mm Oval Cut From Sri Lanka, Photo A

2.31 ct Yellow Sphene, 7.1 x 5.8 mm Oval Cut From Sri Lanka

Sphene

2.31ct total2 pcs
$ 11.55
7.1 x 5.8 mm
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0.29 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.8 mm, Photo A

0.29 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.8 mm

Ruby

0.29ct1 pc
$ 96.02
3.8 mm
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1.65 ct Loose Princess Cut Sapphire, 2.4 x 2.3 mm From Tanzania, Photo A

1.65 ct Loose Princess Cut Sapphire, 2.4 x 2.3 mm From Tanzania

Sapphire

1.65ct total15 pcs
$ 198.00
2.4 x 2.3 mm
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1.4 ct Loose Marquise Pietersite, 15.1 x 5.3 mm From Namibia, Photo A

1.4 ct Loose Marquise Pietersite, 15.1 x 5.3 mm From Namibia

Pietersite

1.40ct1 pc
$ 3.40
15.1 x 5.3 mm
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1.17 carat Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 6.1 x 4 mm, Photo A

1.17 carat Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 6.1 x 4 mm

Topaz

1.17ct total2 pcs
$ 8.19
6.1 x 4 mm
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3.18 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11 x 9 mm, Photo A

3.18 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11 x 9 mm

Citrine

3.18ct1 pc
$ 19.51
11 x 9 mm
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2.23 ct Round Cut Strawberry Quartz, 7 mm From Russia, Photo A

2.23 ct Round Cut Strawberry Quartz, 7 mm From Russia

Strawberry Quartz

2.23ct total2 pcs
$ 34.34
7 mm
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6.3 ct Loose Baguette Lapis Lazuli, 14.1 x 12 mm From Afghanistan, Photo A

6.3 ct Loose Baguette Lapis Lazuli, 14.1 x 12 mm From Afghanistan

Lapis Lazuli

6.30ct1 pc
$ 10.84
14.1 x 12 mm
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12.73 ct Trillion Boulder Opal, 16.6 x 15.7 mm From Australia, Photo A

12.73 ct Trillion Boulder Opal, 16.6 x 15.7 mm From Australia

Boulder Opal

12.73ct1 pc
$ 63.65
16.6 x 15.7 mm
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0.77 carat Blue Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 5.5 x 4.4 mm, Photo A

0.77 carat Blue Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 5.5 x 4.4 mm

Sapphire

0.77ct1 pc
$ 61.60
5.5 x 4.4 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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