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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (2020): Huge Gems Clear All
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Brown Smoky Quartz Gem - 81ct Oval Portuguese-Cut (ID: 509153)

Oval Brown Smoky Quartz

81ct
30.5 x 24 mm
$ 68.83
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Violet Charoite Gem - 28.1ct Oval Cabochon (ID: 452220)

Oval Violet Charoite

28.1ct
30 x 22 mm
$ 42.18
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Green Seraphinite Gem - 76.3ct Cushion Cabochon (ID: 485928)

Cushion Green Seraphinite

76.3ct
42.8 x 22 mm
$ 50.36
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Multicolor Chrysocolla Gem - 150.5ct Cushion Cabochon (ID: 471133)

Cushion Multicolor Chrysocolla

150.5ct
45.4 x 39.1 mm
$ 45.16
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Violet to Blue Color-Change Fluorite Gem - 21.3ct Oval Facet (ID: 413809)

Oval Multicolor Color-Change Fluorite

21.3ct
20.1 x 15.1 mm
$ 425.20
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Pink Star Rose Quartz Gem - 163.2ct Oval Cabochon (ID: 305379)

Oval Pink Star Rose Quartz

163.2ct
32.1 x 28.8 mm
$ 326.40
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Violet Amethyst Gem - 55.5ct Oval Checkerboard (ID: 505953)

Oval Violet Amethyst

55.5ct
26.5 x 21.8 mm
$ 333.18
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Greenish Golden Apatite Gem - 10.3ct Cushion-Cut (ID: 407301)

Cushion Yellow Apatite

10.3ct
13.9 x 12.2 mm
$ 425.90
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Multicolor Pietersite Gem - 68.1ct Oval Cabochon (ID: 333825)

Oval Multicolor Pietersite

68.1ct
47 x 29.4 mm
$ 272.24
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Violet Charoite Gem - 60.1ct Fancy Cabochon (ID: 472508)

Fancy Violet Charoite

60.1ct
42.7 x 26.5 mm
$ 88.36
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Swiss Blue Topaz Gem - 67.8ct Cushion Checkerboard (ID: 505681)

Cushion Blue Topaz

67.8ct
26.4 x 21 mm
$ 499.69
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Bi-color Tourmaline Gem - 17.4ct Octagon Facet (ID: 328004)

Octagon / Emerald Cut Bi-color Tourmaline

17.4ct
66.5 x 6.3 mm
$ 3,470.50
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Multicolor Pietersite Gem - 35.6ct Oval Cabochon (ID: 456179)

Oval Multicolor Pietersite

35.6ct
30.1 x 22 mm
$ 82.90
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Violet Charoite Gem - 49.2ct Cushion Cabochon (ID: 472242)

Cushion Violet Charoite

49.2ct
33.2 x 23.9 mm
$ 72.28
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Orange Spessartite Garnet Gem - 14ct Octagon Step Cut (ID: 486944)

Orange Spessartite Garnet

14ct
20.6 x 8.3 mm
$ 559.60
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Black Star Sapphire Gem - 20.3ct Oval Cabochon (ID: 350892)

Oval Black Star Sapphire

20.3ct
19.2 x 15.9 mm
$ 553.92
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Multicolor Jasper Gem - 84.8ct Oval Cabochon (ID: 470775)

Oval Multicolor Jasper

84.8ct
41.6 x 31.5 mm
$ 61.96
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Multicolor Fossil Coral Gem - 95.7ct Oval Cabochon (ID: 431018)

Oval Multicolor Fossil Coral

95.7ct
48.7 x 37.1 mm
$ 95.71
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Multicolor Pietersite Gem - 41.7ct Oval Cabochon (ID: 447855)

Oval Multicolor Pietersite

41.7ct
30.2 x 22.2 mm
$ 124.95
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Multicolor Jasper Gem - 94ct Cushion Cabochon (ID: 447429)

Cushion Multicolor Jasper

94ct
44.8 x 36.8 mm
$ 93.96
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Grayish Silver Star Sapphire Gem - 21.2ct Round Cabochon (ID: 470844)

Round Gray Star Sapphire

21.2ct
14.7 mm
$ 743.05
Item in Stock
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.
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Easy to find what i'm looking for on website, very clear, like photos
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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