18k Yellow Gold Basket Set with a Color Changing Purple to Pink Synthetic Statement Gemstone-Look Stone Cocktail Ring. True Vintage, Fully Hallmarked Assay Marked, Foreign Made Fine Gold, looks to be Egyptian marks. Tested for 18k gold. True vintage age, Estate Fine Gold Unique Jewelry. Looks mostly like an amethyst, again color changing and manmade aka synthetic gem look stone. 16 MM round stones (11 to 15 carats, without removing it from the setting the exact carat weight is unknown, this…