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Cassiterite Gemstones: Natural & Certified | GemSelect

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17.57ct Natural Multicolor Agate, Fancy, Opaque, Photo A

17.57ct Natural Multicolor Agate, Fancy, Opaque

Agate

17.57ct1 pc
$ 30.77
18.5 x 9.7 mm
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0.02ct Natural Black Diamond, Round, Opaque, Photo A

0.02ct Natural Black Diamond, Round, Opaque

Diamond

0.02ct1 pc
$ 15.94
2.1 mm (calibrated)
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2.10ctw Natural Multicolor Labradorite, Round, Translucent, Photo A

2.10ctw Natural Multicolor Labradorite, Round, Translucent

Labradorite

2.10ct total2 pcs
$ 5.10
6 mm (calibrated)
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3.88ct Natural Golden Orange Citrine, Oval, VVS-VS, Photo A

3.88ct Natural Golden Orange Citrine, Oval, VVS-VS

Citrine

3.88ct1 pc
$ 29.76
11 x 9 mm (calibrated)
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7.28ct Natural Medium Golden Citrine, Octagon / Emerald Cut, VVS, Photo A

7.28ct Natural Medium Golden Citrine, Octagon / Emerald Cut, VVS

Citrine

7.28ct1 pc
$ 39.88
14 x 10 mm (calibrated)
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4.46ctw Natural Sky Blue Topaz, Marquise, VVS, Photo A

4.46ctw Natural Sky Blue Topaz, Marquise, VVS

Topaz

4.46ct total2 pcs
$ 24.44
11.9 x 6.1 mm
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4.30ct Natural Reddish Purple Rhodolite Garnet, Oval, VVS-VS, Photo A

4.30ct Natural Reddish Purple Rhodolite Garnet, Oval, VVS-VS

Rhodolite Garnet

4.30ct1 pc
$ 178.45
9.9 x 8.7 mm
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4.84ctw Natural Swiss Blue Topaz, Trillion, VVS-VS, Photo A

4.84ctw Natural Swiss Blue Topaz, Trillion, VVS-VS

Topaz

4.84ct total4 pcs
$ 34.63
7 x 7 mm (calibrated)
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0.63ct Natural Brownish Orange Zircon, Oval, VVS-VS, Photo A

0.63ct Natural Brownish Orange Zircon, Oval, VVS-VS

Zircon

0.63ct1 pc
$ 9.41
5.2 x 4 mm
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1.07ct Natural Yellow Green Color-Change Diaspore, Octagon / Emerald Cut, VS-SI, Photo A

1.07ct Natural Yellow Green Color-Change Diaspore, Octagon / Emerald Cut, VS-SI

Color-Change Diaspore

1.07ct1 pc
$ 52.31
8 x 4.4 mm
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8.98ct Natural Umber Brown Smoky Quartz, Octagon / Emerald Cut, VVS, Photo A

8.98ct Natural Umber Brown Smoky Quartz, Octagon / Emerald Cut, VVS

Smoky Quartz

8.98ct1 pc
$ 49.19
12 x 12 mm (calibrated)
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11.82ct Natural Multicolor Pietersite, Oval, Opaque, Photo A

11.82ct Natural Multicolor Pietersite, Oval, Opaque

Pietersite

11.82ct1 pc
$ 44.62
22.4 x 16.5 mm
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1.60ct Natural Light Orangish Pink Tourmaline, Round, Transparent, Photo A

1.60ct Natural Light Orangish Pink Tourmaline, Round, Transparent

Tourmaline

1.60ct1 pc
$ 27.43
7 mm (calibrated)
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0.73ct Natural Light Red Ruby, Pear Shape, VS-SI, Photo A

0.73ct Natural Light Red Ruby, Pear Shape, VS-SI

Ruby

0.73ct1 pc
$ 65.44
6.3 x 4.2 mm
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3.40ct Natural Indian Red Strawberry Quartz, Oval, Translucent, Photo A

3.40ct Natural Indian Red Strawberry Quartz, Oval, Translucent

Strawberry Quartz

3.40ct1 pc
$ 26.08
10 x 8 mm (calibrated)
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1.06ctw Natural Yellowish Green Peridot, Oval, Transparent, Photo A

1.06ctw Natural Yellowish Green Peridot, Oval, Transparent

Peridot

1.06ct total2 pcs
$ 19.01
6 x 4.2 mm
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3.06ctw Natural Sky Blue Topaz, Oval, VS, Photo A

3.06ctw Natural Sky Blue Topaz, Oval, VS

Topaz

3.06ct total10 pcs
$ 16.77
5 x 3.2 mm
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1.99ct Natural Medium Violet Amethyst, Marquise, VS, Photo A

1.99ct Natural Medium Violet Amethyst, Marquise, VS

Amethyst

1.99ct1 pc
$ 15.26
12.1 x 6 mm
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0.85ctw Natural White Sapphire, Round, VVS-VS, Photo A

0.85ctw Natural White Sapphire, Round, VVS-VS

Sapphire

0.85ct total2 pcs
$ 112.11
4.5 mm (calibrated)
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0.44ct Natural Multicolor Opal, Oval, Transparent, Photo A

0.44ct Natural Multicolor Opal, Oval, Transparent

Opal

0.44ct1 pc
$ 10.96
7 x 5 mm (calibrated)
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1.24ct Natural Earth Orange Hessonite Garnet, Cushion, VVS-VS, Photo A

1.24ct Natural Earth Orange Hessonite Garnet, Cushion, VVS-VS

Hessonite Garnet

1.24ct1 pc
$ 24.70
7.4 x 5.2 mm
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1.88ct Natural Medium Pink Strawberry Quartz, Oval, Translucent, Photo A

1.88ct Natural Medium Pink Strawberry Quartz, Oval, Translucent

Strawberry Quartz

1.88ct1 pc
$ 14.43
9 x 7 mm (calibrated)
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4.27ct Natural Pink Berry Purple Rhodolite Garnet, Oval, VS, Photo A

4.27ct Natural Pink Berry Purple Rhodolite Garnet, Oval, VS

Rhodolite Garnet

4.27ct1 pc
$ 177.21
10 x 8 mm (calibrated)
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0.51ct Natural Apricot Orange Sapphire, Pear Shape, VVS, Photo A

0.51ct Natural Apricot Orange Sapphire, Pear Shape, VVS

Sapphire

0.51ct1 pc
$ 28.90
6 x 4 mm (calibrated)
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0.48ct Natural Lively Green Sphene, Oval, VS, Photo A

0.48ct Natural Lively Green Sphene, Oval, VS

Sphene

0.48ct1 pc
$ 21.03
5 x 4 mm (calibrated)
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2.65ct Natural Light Pink Strawberry Quartz, Oval, Transparent, Photo A

2.65ct Natural Light Pink Strawberry Quartz, Oval, Transparent

Strawberry Quartz

2.65ct1 pc
$ 19.69
10 x 8 mm (calibrated)
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4.10ctw Natural Purplish Violet Amethyst, Oval, VVS-VS, Photo A

4.10ctw Natural Purplish Violet Amethyst, Oval, VVS-VS

Amethyst

4.10ct total10 pcs
$ 22.46
6 x 4 mm (calibrated)
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19.39ct Natural Black with Gold Sheen Obsidian, Pear Shape, Opaque, Photo A

19.39ct Natural Black with Gold Sheen Obsidian, Pear Shape, Opaque

Obsidian

19.39ct1 pc
$ 16.99
26.8 x 16.7 mm
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3.01ct Natural Medium Violet Amethyst, Trillion, VS, Photo A

3.01ct Natural Medium Violet Amethyst, Trillion, VS

Amethyst

3.01ct1 pc
$ 20.98
10 x 10 mm (calibrated)
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3.39ctw Natural White Zircon, Round, VVS-VS, Photo A

3.39ctw Natural White Zircon, Round, VVS-VS

Zircon

3.39ct total4 pcs
$ 37.14
5.5 mm (calibrated)
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0.72ct Natural Deep Purple Sapphire, Oval, VS-SI, Photo A

0.72ct Natural Deep Purple Sapphire, Oval, VS-SI

Sapphire

0.72ct1 pc
$ 153.29
6 x 4.9 mm
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4.69ct Natural Medium Green Druzy Variscite, Fancy, Opaque, Photo A

4.69ct Natural Medium Green Druzy Variscite, Fancy, Opaque

Druzy Variscite

4.69ct1 pc
$ 4.81
16 x 12 mm (calibrated)
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Why Buy Cassiterite from GemSelect?

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 7 star ratings

easy interface for a pricless buy

Posted By Zeak in May, 2026
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I liked the selection of gems, and price. I did not like your PayPal process. I already have a PP account and you want me to sign up for another.

Posted By CLTCJH in May, 2026
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Overall Rating -> 10 star ratings

overall great

Posted By SR in April, 2026
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Overall Rating -> 10 star ratings

I loved it! Extensive inventory, great prices, I definitely will be buying from here again!

Posted By Lex in April, 2026
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Overall Rating -> 10 star ratings

Love the selection of gems on this site, always come here when I want to get gems

Posted By Online Shopper in December, 2025
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Overall Rating -> 10 star ratings

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
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