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0.82 carat Purple Spinel for Sale, Oval loose Spinel from Tanzania, Natural Untreated Gem, 6.7 x 4.8 mm, Photo A

0.82 carat Purple Spinel for Sale, Oval loose Spinel from Tanzania, Natural Untreated Gem, 6.7 x 4.8 mm

Spinel

0.82ct1 pc
$ 44.20
6.7 x 4.8 mm
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1.4 carat White Sapphire for Sale, Diamond-Cut loose Sapphire from Madagascar, Natural Gems, 4.3 mm, Photo A

1.4 carat White Sapphire for Sale, Diamond-Cut loose Sapphire from Madagascar, Natural Gems, 4.3 mm

Sapphire

1.40ct total4 pcs
$ 163.81
4.3 mm
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1.21 carat Oval Opal for Sale, loose Certified Opal from Ethiopia, Natural Gem, 9.2 x 7.2 mm, Photo A

1.21 carat Oval Opal for Sale, loose Certified Opal from Ethiopia, Natural Gem, 9.2 x 7.2 mm

Opal

1.21ct1 pc
$ 36.30
9 x 7 mm (calibrated)
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1.21 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 14.7 x 3.1 mm, Photo A

1.21 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 14.7 x 3.1 mm

Tourmaline

1.21ct1 pc
$ 31.94
14.7 x 3.1 mm
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0.79 carat Pear Shape Ruby for Sale, loose Certified Ruby from Madagascar, Natural Gem, 6.8 x 4.8 mm, Photo A

0.79 carat Pear Shape Ruby for Sale, loose Certified Ruby from Madagascar, Natural Gem, 6.8 x 4.8 mm

Ruby

0.79ct1 pc
$ 71.10
6.8 x 4.8 mm
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1.11 carat Green Tourmaline for Sale, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 6 mm, Photo A

1.11 carat Green Tourmaline for Sale, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 6 mm

Tourmaline

1.11ct1 pc
$ 22.20
6 mm (calibrated)
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1.21 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 14.9 x 3.2 mm, Photo A

1.21 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 14.9 x 3.2 mm

Tourmaline

1.21ct1 pc
$ 29.28
14.9 x 3.2 mm
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6.06 carat Sky Blue Topaz, Round loose Topaz from Brazil, Natural Gems, 9.2 mm, Photo A

6.06 carat Sky Blue Topaz, Round loose Topaz from Brazil, Natural Gems, 9.2 mm

Topaz

6.06ct total2 pcs
$ 42.59
9 mm (calibrated)
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1.9 carat Orange Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 6.9 mm, Photo A

1.9 carat Orange Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 6.9 mm

Zircon

1.90ct1 pc
$ 41.80
7 mm (calibrated)
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0.65 carat Yellow Citrine, Heart loose Citrine from Brazil, Natural Untreated Gem, 6 x 5.9 mm, Photo A

0.65 carat Yellow Citrine, Heart loose Citrine from Brazil, Natural Untreated Gem, 6 x 5.9 mm

Citrine

0.65ct1 pc
$ 4.55
6 x 6 mm (calibrated)
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8.79 carat Octagon / Scissor Cut Smoky Quartz for Sale, loose Certified Smoky Quartz from Brazil, Natural Untreated Gem, 12.2 x 12.2 mm, Photo A

8.79 carat Octagon / Scissor Cut Smoky Quartz for Sale, loose Certified Smoky Quartz from Brazil, Natural Untreated Gem, 12.2 x 12.2 mm

Smoky Quartz

8.79ct1 pc
$ 14.51
12 x 12 mm (calibrated)
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5.72 carat Crystal-Cluster Rainbow Pyrite for Sale, loose Certified Rainbow Pyrite from Russia, Natural Untreated Gem, 16.7 x 11.5 mm, Photo A

5.72 carat Crystal-Cluster Rainbow Pyrite for Sale, loose Certified Rainbow Pyrite from Russia, Natural Untreated Gem, 16.7 x 11.5 mm

Rainbow Pyrite

5.72ct1 pc
$ 14.87
16.7 x 11.5 mm
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44.14 carat Oval Jasper for Sale, loose Certified Jasper from Indonesia, Natural Untreated Gem, 32.9 x 27.1 mm, Photo A

44.14 carat Oval Jasper for Sale, loose Certified Jasper from Indonesia, Natural Untreated Gem, 32.9 x 27.1 mm

Jasper

44.14ct1 pc
$ 30.11
32.9 x 27.1 mm
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0.33 carat Baguette Facet Iolite for Sale, loose Certified Iolite from Madagascar, Natural Untreated Gem, 5.1 x 3 mm, Photo A

0.33 carat Baguette Facet Iolite for Sale, loose Certified Iolite from Madagascar, Natural Untreated Gem, 5.1 x 3 mm

Iolite

0.33ct1 pc
$ 13.20
5 x 3 mm (calibrated)
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1.6 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.1 x 5 mm, Photo A

1.6 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.1 x 5 mm

Topaz

1.60ct total2 pcs
$ 8.80
7 x 5 mm (calibrated)
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2.81 carat Trillion-Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 7 x 6.2 mm, Photo A

2.81 carat Trillion-Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 7 x 6.2 mm

Amethyst

2.81ct total5 pcs
$ 18.55
7 x 6.2 mm
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6.27 carat Yellow Citrine, Briolette loose Citrine from Brazil, Natural Untreated Gem, 14.2 mm, Photo A

6.27 carat Yellow Citrine, Briolette loose Citrine from Brazil, Natural Untreated Gem, 14.2 mm

Citrine

6.27ct1 pc
$ 35.52
14 x 9 mm (calibrated)
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4.23 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 12.1 x 6.1 mm, Photo A

4.23 carat Marquise Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 12.1 x 6.1 mm

Pyrope Garnet

4.23ct total2 pcs
$ 67.68
12.1 x 6.1 mm
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15.62 carat Oval Star Ruby for Sale, loose Certified Star Ruby from Madagascar, Natural Gem, 14.9 x 12.4 mm, Photo A

15.62 carat Oval Star Ruby for Sale, loose Certified Star Ruby from Madagascar, Natural Gem, 14.9 x 12.4 mm

Star Ruby

15.62ct1 pc
$ 187.44
14.9 x 12.4 mm
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4.84 carat Round Strawberry Quartz for Sale, loose Certified Strawberry Quartz from Russia, Natural Untreated Gem, 10.6 mm, Photo A

4.84 carat Round Strawberry Quartz for Sale, loose Certified Strawberry Quartz from Russia, Natural Untreated Gem, 10.6 mm

Strawberry Quartz

4.84ct1 pc
$ 37.27
11 mm (calibrated)
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0.55 carat Yellow Citrine for Sale, Heart loose Citrine from Brazil, Natural Untreated Gem, 5.9 x 5.7 mm, Photo A

0.55 carat Yellow Citrine for Sale, Heart loose Citrine from Brazil, Natural Untreated Gem, 5.9 x 5.7 mm

Citrine

0.55ct1 pc
$ 4.40
5.9 x 5.7 mm
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0.96 carat Pink Morganite for Sale, Round loose Morganite from Afghanistan, Natural Untreated Gem, 7.1 mm, Photo A

0.96 carat Pink Morganite for Sale, Round loose Morganite from Afghanistan, Natural Untreated Gem, 7.1 mm

Morganite

0.96ct1 pc
$ 37.44
7 mm (calibrated)
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0.54 carat Green Tourmaline for Sale, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 5 mm, Photo A

0.54 carat Green Tourmaline for Sale, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 5 mm

Tourmaline

0.54ct1 pc
$ 10.80
5 mm (calibrated)
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3.3 carat Oval Kornerupine for Sale, loose Certified Kornerupine from Sri Lanka, Natural Untreated Gems, 7.2 x 5.4 mm, Photo A

3.3 carat Oval Kornerupine for Sale, loose Certified Kornerupine from Sri Lanka, Natural Untreated Gems, 7.2 x 5.4 mm

Kornerupine

3.30ct total4 pcs
$ 108.90
7.2 x 5.4 mm
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1.6 carat Pink Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 7.5 x 6.6 mm, Photo A
Tourmaline Product Video (525358)

1.6 carat Pink Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gem, 7.5 x 6.6 mm

Tourmaline

1.60ct1 pc
$ 246.40
7.5 x 6.6 mm
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54.96 carat Oval Tiger's Eye Matrix for Sale, loose Certified Tiger's Eye Matrix from Mexico, Natural Untreated Gem, 40.5 x 22.8 mm, Photo A

54.96 carat Oval Tiger's Eye Matrix for Sale, loose Certified Tiger's Eye Matrix from Mexico, Natural Untreated Gem, 40.5 x 22.8 mm

Tiger's Eye Matrix

54.96ct1 pc
$ 24.73
40.5 x 22.8 mm
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1.01 ct Loose Round Pietersite, 6.2 mm From Namibia, Photo A

1.01 ct Loose Round Pietersite, 6.2 mm From Namibia

Pietersite

1.01ct1 pc
$ 2.45
6 mm (calibrated)
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1.95 carat Swiss Blue Topaz, Emerald-Cut loose Topaz from Brazil, Natural Gem, 8 x 6.1 mm, Photo A

1.95 carat Swiss Blue Topaz, Emerald-Cut loose Topaz from Brazil, Natural Gem, 8 x 6.1 mm

Topaz

1.95ct1 pc
$ 13.65
8 x 6 mm (calibrated)
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1.72 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7 x 6.9 mm, Photo A

1.72 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7 x 6.9 mm

Hessonite Garnet

1.72ct1 pc
$ 29.04
7 x 7 mm (calibrated)
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3.35 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gems, 8 x 6.6 mm, Photo A
Hessonite Garnet Product Video (541531)

3.35 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gems, 8 x 6.6 mm

Hessonite Garnet

3.35ct total2 pcs
$ 56.09
8 x 6.6 mm
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38.32 carat Bi-color Ametrine, Oval Portuguese-Cut loose Ametrine from Brazil, Natural Untreated Gem, 31 x 18.6 mm, Photo A
Ametrine Product Video (590859)

38.32 carat Bi-color Ametrine, Oval Portuguese-Cut loose Ametrine from Brazil, Natural Untreated Gem, 31 x 18.6 mm

Ametrine

38.32ct1 pc
$ 210.76
31 x 18.6 mm
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1.69 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 5.1 x 3.2 mm, Photo A

1.69 carat Sky Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 5.1 x 3.2 mm

Topaz

1.69ct total6 pcs
$ 9.30
5.1 x 3.2 mm
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Photos are of Actual Products for Sale
Hackmanite is a rare sulfur-rich variety of sodalite and a tenebrescent mineral, which means that it has the ability to change color when exposed to sunlight. This is a process that reverses when the light changes. This phenomenon is also referred to as reversible photochromism. Hackmanite gems are pale to deep violet when first mined, and fade to grayish or greenish-white once exposed to sunlight. However, hackmanite gems from Afghanistan and Myanmar do the opposite and usually change from colorless or creamy-white to pink-red or violet under sunlight.
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