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Buy Cassiterite Gems

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1.11ct Natural Bright Green Peridot, Oval, VS, Photo A

1.11ct Natural Bright Green Peridot, Oval, VS

Peridot

1.11ct1 pc
$ 11.99
7.7 x 5.5 mm
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0.57ct Natural Light Pear Green Sapphire, Cushion, VS, Photo A

0.57ct Natural Light Pear Green Sapphire, Cushion, VS

Sapphire

0.57ct1 pc
$ 37.26
4.4 x 4.4 mm
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7.69ctw Natural Laguna Yellow Quartz, Flower Cut, Transparent, Photo A

7.69ctw Natural Laguna Yellow Quartz, Flower Cut, Transparent

Quartz

7.69ct total4 pcs
$ 35.53
9.5 x 9.5 mm
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2.14ctw Natural Forest Green Demantoid Garnet, Oval, VS, Photo A

2.14ctw Natural Forest Green Demantoid Garnet, Oval, VS

Demantoid Garnet

2.14ct total4 pcs
$ 282.48
6 x 4.3 mm
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0.73ct Natural Multicolor Sapphire, Cushion, VVS, Photo A

0.73ct Natural Multicolor Sapphire, Cushion, VVS

Sapphire

0.73ct1 pc
$ 70.08
5.4 x 4.4 mm
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6.22ct Natural Medium-Light Purplish Violet Amethyst, Pear Shape, VVS-VS, Photo A

6.22ct Natural Medium-Light Purplish Violet Amethyst, Pear Shape, VVS-VS

Amethyst

6.22ct1 pc
$ 57.47
16 x 12 mm (calibrated)
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74.29ctw Natural Multicolor Rhodochrosite, Sphere / Ball, Opaque, Photo A

74.29ctw Natural Multicolor Rhodochrosite, Sphere / Ball, Opaque

Rhodochrosite

74.29ct total2 pcs
$ 196.13
15.6 mm
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0.19ct Natural Medium Green Sapphire, Square, VS, Photo A

0.19ct Natural Medium Green Sapphire, Square, VS

Sapphire

0.19ct1 pc
$ 31.92
3 x 3 mm (calibrated)
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2.68ctw Natural Light Blue Sapphire, Briolette, VS, Photo A

2.68ctw Natural Light Blue Sapphire, Briolette, VS

Sapphire

2.68ct total6 pcs
$ 106.13
4.7 x 3.2 mm
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3.38ct Natural Bi-color Ametrine, Octagon / Emerald Cut, VS, Photo A

3.38ct Natural Bi-color Ametrine, Octagon / Emerald Cut, VS

Ametrine

3.38ct1 pc
$ 42.72
10 x 8 mm (calibrated)
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2.74ct Natural Light Pink Strawberry Quartz, Oval, Transparent, Photo A

2.74ct Natural Light Pink Strawberry Quartz, Oval, Transparent

Strawberry Quartz

2.74ct1 pc
$ 24.53
10 x 8 mm (calibrated)
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0.03ct Natural Black Diamond, Round, Opaque, Photo A

0.03ct Natural Black Diamond, Round, Opaque

Diamond

0.03ct1 pc
$ 28.80
2 mm (calibrated)
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1.03ctw Natural Sangria Red Pyrope Garnet, Square, VVS-VS, Photo A

1.03ctw Natural Sangria Red Pyrope Garnet, Square, VVS-VS

Pyrope Garnet

1.03ct total2 pcs
$ 9.52
4 x 4 mm (calibrated)
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1.01ctw Natural Medium Green Peridot, Marquise, VS, Photo A

1.01ctw Natural Medium Green Peridot, Marquise, VS

Peridot

1.01ct total2 pcs
$ 18.18
8 x 4 mm (calibrated)
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0.96ct Natural Pecan Brown Color-Change Garnet, Oval, VVS, Photo A

0.96ct Natural Pecan Brown Color-Change Garnet, Oval, VVS

Color-Change Garnet

0.96ct1 pc
$ 92.40
6.5 x 4.8 mm
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6.13ct Natural Black Star Sapphire, Oval, Opaque, Photo A

6.13ct Natural Black Star Sapphire, Oval, Opaque

Star Sapphire

6.13ct1 pc
$ 147.12
10.2 x 9.2 mm
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0.48ct Natural Light Royal Purple Pink Sapphire, Pear Shape, VS, Photo A

0.48ct Natural Light Royal Purple Pink Sapphire, Pear Shape, VS

Sapphire

0.48ct1 pc
$ 52.91
6 x 4.9 mm
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1.55ctw Natural Dark Red Pyrope Garnet, Heart, VVS-VS, Photo A

1.55ctw Natural Dark Red Pyrope Garnet, Heart, VVS-VS

Pyrope Garnet

1.55ct total2 pcs
$ 14.33
6 x 6 mm (calibrated)
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2.07ct Natural Light Earthy Green Sphene, Oval, Translucent, Photo A

2.07ct Natural Light Earthy Green Sphene, Oval, Translucent

Sphene

2.07ct1 pc
$ 13.67
8.4 x 6.7 mm
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0.96ct Natural Orange Brown Zircon, Oval, VVS, Photo A

0.96ct Natural Orange Brown Zircon, Oval, VVS

Zircon

0.96ct1 pc
$ 17.28
5.7 x 4.9 mm
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0.92ct Natural Medium Violet Spinel, Cushion, VVS-VS, Photo A

0.92ct Natural Medium Violet Spinel, Cushion, VVS-VS

Spinel

0.92ct1 pc
$ 39.64
5.8 x 4.9 mm
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1.70ctw Natural White Zircon, Oval, VVS-VS, Photo A

1.70ctw Natural White Zircon, Oval, VVS-VS

Zircon

1.70ct total2 pcs
$ 12.48
6.2 x 4.2 mm
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1.28ct Natural Multicolor Opal, Oval, Translucent, Photo A

1.28ct Natural Multicolor Opal, Oval, Translucent

Opal

1.28ct1 pc
$ 38.40
10 x 7 mm (calibrated)
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3.74ct Natural Light Pink Strawberry Quartz, Oval, Transparent, Photo A

3.74ct Natural Light Pink Strawberry Quartz, Oval, Transparent

Strawberry Quartz

3.74ct1 pc
$ 33.79
11 x 9 mm (calibrated)
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3.45ct Natural Bright Gold Citrine, Baguette, VS, Photo A

3.45ct Natural Bright Gold Citrine, Baguette, VS

Citrine

3.45ct1 pc
$ 31.88
12.4 x 7 mm
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2.43ctw Natural Multicolor Sapphire, Square, VS, Photo A

2.43ctw Natural Multicolor Sapphire, Square, VS

Sapphire

2.43ct total10 pcs
$ 183.04
3.3 x 3.2 mm
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7.26ctw Natural Black Spinel, Round, Opaque, Photo A

7.26ctw Natural Black Spinel, Round, Opaque

Spinel

7.26ct total2 pcs
$ 28.75
9 mm (calibrated)
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1.47ct Natural Dark Golden Citrine, Octagon / Emerald Cut, VVS-VS, Photo A

1.47ct Natural Dark Golden Citrine, Octagon / Emerald Cut, VVS-VS

Citrine

1.47ct1 pc
$ 11.64
8 x 6 mm (calibrated)
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0.98ct Natural Deep Orange-Gold Sapphire, Round, VVS, Photo A

0.98ct Natural Deep Orange-Gold Sapphire, Round, VVS

Sapphire

0.98ct1 pc
$ 232.85
5.2 mm
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0.61ct Natural Pistachio Green Emerald, Oval, Translucent, Photo A

0.61ct Natural Pistachio Green Emerald, Oval, Translucent

Emerald

0.61ct1 pc
$ 51.24
5.8 x 4.8 mm
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4.05ct Natural Medium Gold Citrine, Octagon / Emerald Cut, VVS-VS, Photo A

4.05ct Natural Medium Gold Citrine, Octagon / Emerald Cut, VVS-VS

Citrine

4.05ct1 pc
$ 37.43
11 x 9 mm (calibrated)
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12.59ct Natural Light Yellow Quartz, Flower Cut, Transparent, Photo A

12.59ct Natural Light Yellow Quartz, Flower Cut, Transparent

Quartz

12.59ct1 pc
$ 33.24
16 x 16 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 -> 10 star ratings

Wonderful purchase, can't wait to see the stone.

Posted By Tim in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great site for finding specific stones and sizes for individual pieces of jewelry

Posted By Designer in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

My experience has always been fantastic. Today I saved 6 gems to email a customer looking for a particular color blend to fit into an east west setting, so her options were limited, but we found one she wanted, deleted all the others in the cart and order the gem she selected. It was helpful to be able to put them in the cart so I could save them until she selected the one she wanted without having to research all of them again.

Posted By RJ in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

I think therea's no problem

Posted By Napoleon in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Filters need to be improved but rest of website is great

Posted By Rock hound in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I searched for the size, dimensions and quality of the stones I was looking for and then compared and ordered.

Posted By Tim in March, 2025
Source: Bizrate
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