Exquisite cluster ring of diamonds with a halo of oval-cut blue topaz further elevating its design. Blue topaz Diamonds, 0.24 tcw Diamond color: D-H Diamond clarity: VS 18K white gold Imported SIZE Width, about 0.5" Click here for a Guide to Jewelry & Watches. Center Core - Direct Jewelry Guarantee > Saks Off 5th > Barneys Warehouse. Hueb. Size: 7.