Explore a great selection of rare Sillimanite Cat's Eye gemstones for sale. All our Sillimanite Cat's Eye gemstones are guaranteed natural and can be shipped worldwide. This is a nice gemstone for a unique piece of jewelry at a very affordable price. At GemSelect we do not use stock images for our products, what you see is what you get. Use the filters on this page to quickly narrow down your specific size, shape or color you are looking for.
GemSelect: Over 18 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10
Great for buying gemstones, came with authenticity certs. Will buy again someday!
Posted By Uggadugga in May, 2025
Source: Bizrate
Overall Rating -> 9
Like the choices of loose stones, and the product quality.
Posted By Online Shopper in June, 2025
Source: Bizrate
Overall Rating -> 9
It was a good experience looking for and finding a nice amethyst stone
Posted By N/a in May, 2025
Source: Bizrate
Overall Rating -> 10
It was very good and concise.
Posted By Whydothey in August, 2024
Source: Bizrate
Overall Rating -> 10
All Good
Posted By Boru in July, 2024
Source: Bizrate
Overall Rating -> 10
I have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.
Posted By Sam in March, 2025
Source: Bizrate
Overall Rating -> 10
I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring
Posted By Desertchick in April, 2025
Source: Bizrate
Overall Rating -> 10
Enjoyed shopping.
Posted By Chris in March, 2025
Source: Bizrate
Overall Rating -> 10
Nice website I just don't know much about the quality until I receive the stone.
Posted By Becky in December, 2024
Source: Bizrate
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.
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Over 19 Years in the Gemstone Business!
Thank you for trusting us with your purchase!
Overall Rating -> 10
Great for buying gemstones, came with authenticity certs. Will buy again someday!
Posted ByUggadugga in May, 2025
Source: Bizrate
Overall Rating -> 9
Like the choices of loose stones, and the product quality.
Posted ByOnline Shopper in June, 2025
Source: Bizrate
Overall Rating -> 9
It was a good experience looking for and finding a nice amethyst stone
Posted ByN/a in May, 2025
Source: Bizrate
Overall Rating -> 10
It was very good and concise.
Posted ByWhydothey in August, 2024
Source: Bizrate
Overall Rating -> 10
All Good
Posted ByBoru in July, 2024
Source: Bizrate
Overall Rating -> 10
I have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.
Posted BySam in March, 2025
Source: Bizrate
Overall Rating -> 10
I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring
Posted ByDesertchick in April, 2025
Source: Bizrate
Overall Rating -> 10
Enjoyed shopping.
Posted ByChris in March, 2025
Source: Bizrate
Overall Rating -> 10
Nice website I just don't know much about the quality until I receive the stone.
