Gemstones available as the main center stone for ring settings. These gemstones are chosen for their shimmer, color, strength, and overall beauty. The purchase of this gemstone is an agreement to create a custom piece with it, which is at least an additional $450 for a simple solitaire setting. We do not sell the gemstones loose. Click to shop our settings for your gemstone choice. Diamonds are separate. Click for the diamond category.