Sustainable Fine Jewelry. Handcrafted with Cultivated Diamonds and Reclaimed Gold: Your Modern Luxury Uniform.KBH Jewels is a niche luxury jewelry brand made using only environmentally and socially conscious diamonds. These unique diamonds are cultivated in greenhouses, not mined from the Earth, and are paired with reclaimed and recycled precious metals. The heart of our line offers elevated essentials and modern classics; the upscale uniform for the ethical and sustainable individual.