So here is a VERY VERY RARE. 58 ct cats eye Columbian emerald. 6 x 7 x by 1.8 (mm). It is clear except for very fine (can't see with naked eye) rutile which gives it the "eye".
It is totally natural with no treatments or enhancements. I had set this in a custom necklace - an eye in 14k yellow gold, surrounded by pave diamonds. Unfortunately the piece got irreparably damaged- so it is a loose stone. The item "CATS EYE EMERALD EXTREMELY RARE" is in sale since Saturday, August 8, 2020. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Aquamarine".The seller is "therockdoc" and is located in Arvada, Colorado. This item can be shipped to United States.