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27.7ct Fancy Cabochon Multicolor Ammolite Gem (ID: 453598)
27.74 ct Ammolite
29.5 x 19.4 mm
$ 416.10
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24.1ct Cushion Cabochon Multicolor Sugilite Gem (ID: 503645)
24.09 ct Sugilite
21.9 x 14.2 mm
$ 120.31
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30.7ct Fancy Cabochon Multicolor Fire Agate Gem (ID: 490655)
30.74 ct Fire Agate
28.8 x 19.4 mm
$ 169.07
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183.1ct Oval Cabochon Multicolor Ruby-Zoisite Gem (ID: 484087)
183.06 ct Ruby-Zoisite
55.1 x 41.6 mm
$ 274.59
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91.7ct Fancy Cabochon Violet Charoite Gem (ID: 344690)
91.73 ct Charoite
36.1 x 26.2 mm
$ 137.60
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57.7ct Fancy Crystal Cluster Yellow Golden Citrine Geode Gem (ID: 391760)
57.68 ct Citrine Geode
35.5 x 18.8 mm
$ 57.68
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Click for Product Video (333383)
15.4ct Oval Facet Cinnamon Orange Hessonite Garnet Gem (ID: 333383)
15.39 ct Hessonite Garnet
16.8 x 13.5 mm
$ 2,308.50
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154.3ct Shark Fin Cabochon Multicolor Rhodochrosite Gem (ID: 472618)
154.30 ct Rhodochrosite
55.6 x 36 mm
$ 243.79
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27.8ct Oval Cabochon Green Jadeite Gem (ID: 471383)
27.81 ct Jadeite
25.6 x 16.2 mm
$ 83.43
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Click for Product Video (470844)
21.2ct Round Cabochon Grayish Silver Star Sapphire Gem (ID: 470844)
21.23 ct Star Sapphire
14.7 mm
$ 743.05
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97.9ct Carved Rose Smoky Brown Smoky Quartz Gem (ID: 344238)
97.93 ct Smoky Quartz
39.5 x 27.1 mm
$ 122.41
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212.9ct Oval Checkerboard Lemon Quartz Gem (ID: 339145)
212.85 ct Quartz
41.7 x 31.6 mm
$ 440.60
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Click for Product Video (333825)
68.1ct Oval Cabochon Multicolor Pietersite Gem (ID: 333825)
68.06 ct Pietersite
47 x 29.4 mm
$ 272.24
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Click for Product Video (467270)
18.3ct Oval Cabochon Multicolor Opal Gem (ID: 467270)
18.33 ct Opal
20 x 16.9 mm
$ 737.97
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Click for Product Video (329310)
47.2ct Round Facet Yellow Orange Zircon Gem (ID: 329310)
47.19 ct Zircon
19.3 mm
$ 7,550.00
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Click for Product Video (429703)
46.2ct Cushion-Cut Green Apatite Gem (ID: 429703)
46.17 ct Apatite
23.2 x 19.7 mm
$ 4,432.32
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1197.4ct Spherical Multicolor Jasper Gem (ID: 448491)
1197.38 ct Jasper
52.8 mm
$ 598.69
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Click for Product Video (328004)
17.4ct Octagon Facet Bi-color Tourmaline Gem (ID: 328004)
17.35 ct Tourmaline
66.5 x 6.3 mm
$ 3,470.50
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66.6ct Oval Checkerboard Colorless Golden Rutile Quartz Gem (ID: 404354)
66.63 ct Rutile Quartz
29.6 x 23.2 mm
$ 266.52
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26.9ct Fancy Cabochon Multicolor Ammolite Gem (ID: 377633)
26.89 ct Ammolite
32.4 x 17.7 mm
$ 403.35
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Click for Product Video (402623)
36.4ct Pear Crystal Cluster Multicolor Rainbow Pyrite Gem (ID: 402623)
36.37 ct Rainbow Pyrite
30.5 x 21.3 mm
$ 109.11
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.
Certified Customer Reviews
Overall Rating -> 10 star ratings
Satisfied with gem & purchase process! Thanks!
Posted By in October, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Easy to see the gemstones you are buying, easy to see prices and shipping.
Posted By Amy in October, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
I have been using GemSelect for at lest five years and I have no complaints!
Posted By in October, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
This site always has beautiful stones to choose from and you will get the actual gem that is pictured. The shipping is fast and reasonably priced.
Posted By CAC in October, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
I have not gotten my gems, but when i do i will be very happy, yet i did not like you had to pay $15 extra for faster shipping
Posted By Jack in October, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
I love GemSelect, personally. I browse their site almost daily to see all the new stones available. Their selection is pretty amazing. The quality isn't always the highest and the cut of the stones isn't always perfect. But for the price, and if you look hard enough, you can find a real gem, so to speak.
Posted By Patrick in September, 2018
Source: Bizrate
Popular Gemstones
All Gemstones (141)
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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