They are surrounded by a halo of marcasite stones.
4 Carat Cushion Cut Crystal Aquamarine & Marcasite Stud Earrings, Platinum Overlay by SuperJeweler. These stunning earrings feature 2 8mm crystal aquamarine gemstones. Each earring measures 11x11mm - Lifetime Guarantee - 60 Day Worry-Free Return - 4 Carat Cushion Cut Crystal Aquamarine & Marcasite Stud Earrings, Platinum Overlay by SuperJeweler Earrings are crafted in platinum plated brass and have secure friction backs.