"Cat’s-eye alexandrite, with beautiful chatoyancy along with color change, is extremely rare." Gia.edu. Here is the first design by my Daughter, Alexandra Cristina Jelladian, she is 16 years old. I bought these 5 Alexandrite Cat's Eyes and she drew a striking design with the rays of light being set to align. The largest stone was certified by Gia as a .70Ct Blue-Green changing to Purple Alexandrite Cat's Eye. The 2 rows of Diamonds will accent this Pentagon shaped Pendant that will be made into a Platinum Pendant. The total Alexandrite Cat's Eye and Diamond weight will be approximately 5.00Cts.