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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (37): Huge Gems Clear All
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Multicolor Rhodochrosite Gem - 118.4ct Trillion Cabochon (ID: 471275)

Trillion Multicolor Rhodochrosite

118.4ct
55 x 30.5 mm
$ 185.20
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Violet Charoite Gem - 52.6ct Trillion Cabochon (ID: 471351)

Trillion Violet Charoite

52.6ct
43.5 x 24.7 mm
$ 76.74
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Green Blue Larimar Gem - 46.9ct Trillion Cabochon (ID: 492083)

Trillion Blue Larimar

46.9ct
28.7 x 29 mm
$ 70.31
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Violet Amethyst Gem - 87.3ct Trillion Checkerboard (ID: 506011)

Trillion Violet Amethyst

87.3ct
29.2 x 28.3 mm
$ 523.62
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Multicolor Sugilite Gem - 38.8ct Trillion Cabochon (ID: 490036)

Trillion Multicolor Sugilite

38.8ct
23.9 x 23.9 mm
$ 21.75
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Multicolor Ammolite Gem - 20.8ct Trillion Cabochon (ID: 452767)

Trillion Multicolor Ammolite

20.8ct
27.6 x 18.7 mm
$ 207.50
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Green Blue Larimar Gem - 102.9ct Trillion Cabochon (ID: 492344)

Trillion Blue Larimar

102.9ct
39.1 x 38.2 mm
$ 154.28
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Multicolor Ammolite Gem - 24.6ct Trillion Cabochon (ID: 452911)

Trillion Multicolor Ammolite

24.6ct
28.4 x 20 mm
$ 245.60
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Black Spinel Gem - 11ct Trillion Rose-Cut (ID: 328421)

Trillion Black Spinel

11ct
14.1 x 13.8 mm
$ 22.02
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Black Spinel Gem - 11.3ct Trillion Rose-Cut (ID: 328414)

Trillion Black Spinel

11.3ct
14.2 x 13.9 mm
$ 22.58
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Multicolor Sugilite Gem - 20.4ct Trillion Cabochon (ID: 497860)

Trillion Multicolor Sugilite

20.4ct
24.7 x 17.9 mm
$ 50.93
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Black Spinel Gem - 11ct Trillion Rose-Cut (ID: 328477)

Trillion Black Spinel

11ct
14.1 x 13.9 mm
$ 22.06
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Black Spinel Gem - 11ct Trillion Rose-Cut (ID: 328453)

Trillion Black Spinel

11ct
14.1 x 13.8 mm
$ 22.08
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Multicolor Ammolite Gem - 22.4ct Trillion Cabochon (ID: 452764)

Trillion Multicolor Ammolite

22.4ct
23 x 23.2 mm
$ 224.40
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Multicolor Ammolite Gem - 23.6ct Trillion Cabochon (ID: 451548)

Trillion Multicolor Ammolite

23.6ct
28.3 x 21.3 mm
$ 236.30
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Multicolor Chrysocolla Gem - 59.6ct Trillion Cabochon (ID: 471065)

Trillion Multicolor Chrysocolla

59.6ct
31.6 x 26.1 mm
$ 29.82
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Multicolor Ammolite Gem - 21.8ct Trillion Cabochon (ID: 453568)

Trillion Multicolor Ammolite

21.8ct
19.8 x 26.7 mm
$ 218.30
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Violet Blue Sodalite Gem - 48.9ct Trillion Cabochon (ID: 486691)

Trillion Blue Sodalite

48.9ct
34.7 x 28 mm
$ 21.52
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Multicolor Ammolite Gem - 21.1ct Trillion Cabochon (ID: 453565)

Trillion Multicolor Ammolite

21.1ct
26.2 x 21.1 mm
$ 210.50
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Multicolor Ammolite Gem - 20.4ct Trillion Cabochon (ID: 377637)

Trillion Multicolor Ammolite

20.4ct
28.5 x 19.1 mm
$ 204.40
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Multicolor Ammolite Gem - 23.8ct Trillion Cabochon (ID: 451621)

Trillion Multicolor Ammolite

23.8ct
28.7 x 21.5 mm
$ 237.60
Item in Stock
1 2
Huge Gems
Choose from a large selection of giant gems, whether they are for a gemstone collection, ornaments or statement jewelry pieces. Shop for huge faceted gems and cabochons of various shapes, sizes and colors, including tourmaline, quartz, garnet and lesser-known gems, such as rhodochrosite. Large star and cat's eye gemstones are also available. From this page, you can filter by gem type, color, size, price, carat weight and several other factors to find the perfect big gemstone for your jewelry.
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Posted By BO in January, 2019
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As Always never disappointed in any gemstone I purchase from this site. I have never had a problem. Thank-You Gemselect for offering such a comprehensive variety . I will continue to order from this site.
Posted By Brian in January, 2019
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Easy to find what i'm looking for on website, very clear, like photos
Posted By Lifter in January, 2019
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Better than what I expected. Beautifully cut gem!
Posted By in January, 2019
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Overall Rating -> 10 star ratings
Gem select is the most trustworthy web site for gems. What I see in the picture is exactly what I get. Size is indicated by carat weight, and not the picture size, as they are trying to give an up close view of the gem I am hoping to buy. It was so easy to find the stones I was looking for at a price I could afford.
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart