Mare Nostrum London Blue Topaz Doublet RingDramatic and unmistakably artisan, Lika Behars Mare Nostrum ring pairs 24 karat yellow gold with rhodium plated blackened sterling silver to frame a breathtaking London blue topaz and mother of pearl doublet weighing 15. 20 carats. Accented with 0. 06 carats of diamonds, this ring glows with ocean inspired depth and color. A bold, sculptural statement piece that showcases Lika Behars masterful blend of texture, contrast, and brilliance.