The perfect subsitute for a diamond, the YAG stone has a sinlge refractive light like the diamond and is as hard as the diamond (used in manufacturing to substitute the diamond). You cannot tell the difference with the naked eye, and this stunning 1ct Pink stone set in 14kt yellow gold is gorgeous! Size 6 CLICK ON PICTURE TO ENLARGE. Availability: Usually ships the next business day. Jewelry - 1ct Pink YAG (Yitrium Aluminum Garnet) Solitaire in 14kt yellow gold JR-69P$139.95 Thank you for visiting "A Touch of Elegance". Come back often as we constantly add new items.