Our signature collection, THE GLEIM COLLECTION is manufactured exclusively for us by craftsmen in New York and Los Angeles. The pieces feature collectible, rare-colored gems and high-quality, ideal-cut diamonds. Set in 18-karat yellow gold and platinum, the utmost care goes into the design of each piece making sure that each center natural gemstone is flawlessly highlighted and the diamonds are perfectly calibrated, turning each piece into a miniature, valuable heirloom.