About The Brand: Create Your Own Signature Look. 14-Karat Gold-Plated Unique Metal Blend Lab-Grown Gemstone(S): Opal It Is Customary To Treat Most Gemstones To Achieve Enhanced Color And Durability. Some Of These Treatments May Not Be Permanent, And May Require Special Care. Measures 11.5Mm X 12Mm X 3Mm