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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (174): Cat's Eye Sillimanite Clear All
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1 pc
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1.3ct Oval Cabochon Grayish Brown Sillimanite Cat's Eye Gem (ID: 471897)
1.33 ct Sillimanite Cat's Eye
7.3 x 6.8 mm
$ 3.99
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1 pc
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3.9ct Oval Cabochon Grayish Brown Sillimanite Cat's Eye Gem (ID: 410600)
3.92 ct Sillimanite Cat's Eye
10.6 x 7.8 mm
$ 27.44
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4 pcs
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1.1ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 410365)
1.07 ct (total 4.26ctw) Sillimanite Cat's Eye
7.1 x 4.8 mm
$ 15.42
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1 pc
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1.4ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 474237)
1.36 ct Sillimanite Cat's Eye
8.2 x 5.3 mm
$ 4.08
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4 pcs
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1.1ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 410426)
1.12 ct (total 4.49ctw) Sillimanite Cat's Eye
7.1 x 4.7 mm
$ 16.25
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4 pcs
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1.1ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 410197)
1.13 ct (total 4.50ctw) Sillimanite Cat's Eye
7.4 x 4.9 mm
$ 16.29
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4 pcs
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1ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 410196)
0.97 ct (total 3.87ctw) Sillimanite Cat's Eye
7.1 x 4.6 mm
$ 14.01
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1.4ct Round Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 474677)
1.40 ct Sillimanite Cat's Eye
6.9 mm
$ 4.20
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4 pcs
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0.8ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 410351)
0.84 ct (total 3.37ctw) Sillimanite Cat's Eye
6.6 x 4.7 mm
$ 12.20
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4 pcs
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1.2ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 410374)
1.17 ct (total 4.68ctw) Sillimanite Cat's Eye
7.5 x 5 mm
$ 16.94
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1.4ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 473994)
1.43 ct Sillimanite Cat's Eye
8.2 x 5.8 mm
$ 4.29
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2 pcs
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0.7ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 474171)
0.69 ct (total 1.37ctw) Sillimanite Cat's Eye
6.3 x 3.8 mm
$ 4.11
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4 pcs
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0.8ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 409891)
0.82 ct (total 3.29ctw) Sillimanite Cat's Eye
6.4 x 4.4 mm
$ 11.91
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4 pcs
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1ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 410368)
1.02 ct (total 4.08ctw) Sillimanite Cat's Eye
7.1 x 4.8 mm
$ 14.77
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1 pc
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1.4ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 499429)
1.43 ct Sillimanite Cat's Eye
7.9 x 5.4 mm
$ 4.29
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4 pcs
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1ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 409899)
0.98 ct (total 3.93ctw) Sillimanite Cat's Eye
7.1 x 4.7 mm
$ 14.23
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1 pc
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1.4ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 475028)
1.44 ct Sillimanite Cat's Eye
7.5 x 5.6 mm
$ 4.32
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2 pcs
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1.4ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 410301)
1.43 ct (total 2.86ctw) Sillimanite Cat's Eye
7.9 x 5.2 mm
$ 10.35
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2 pcs
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0.7ct Oval Cabochon Grayish Brown Sillimanite Cat's Eye Gem (ID: 471795)
0.72 ct (total 1.43ctw) Sillimanite Cat's Eye
6.6 x 3.8 mm
$ 4.29
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1 pc
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1.3ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 499674)
1.26 ct Sillimanite Cat's Eye
7.2 x 5.4 mm
$ 3.78
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1.5ct Oval Cabochon Smoke Sillimanite Cat's Eye Gem (ID: 474014)
1.48 ct Sillimanite Cat's Eye
7.5 x 5.7 mm
$ 4.44
Item in Stock
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Cat's Eye Sillimanite
Sillimanite is an aluminum silicate, related to both andalusite and kyanite. In fact these three minerals are polymorphs - they share the same chemical composition but different crystal structures.

Sillimanite is named after the American chemist Benjamin Silliman (1779-1864). Silliman was one of the first American professors of science and taught at Yale University.
Certified Customer Reviews
Overall Rating -> 9 star ratings
My selection was made quickly and efficiently.
Posted By JimC in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
GemSelect has a great selection at reasonable prices. Gemstones are always as beautiful as pictured.
Posted By GemLover in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Colors and qualities of gems are very well represented online. Easy to use website. Great selections!
Posted By in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
This was my second purchase from GemSelect and definitely won’t be my last! They have a very wide variety of gems and you can always find what you are looking for with ease and the prices are very good.
Posted By Jill in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Loved the wide selection of product
Posted By Miki in November, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
finally bought the last rock to complete my ring idea; needed another white one after giving the big diamond to my daughter. a diamond that size is out of my retired-school-teacher budget, so i bought a white zircon. went back to the same place that i got my loose sapphire-- great selection, good prices, good delivery!
Posted By Ptcmom in November, 2018
Source: Bizrate
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