CHANNEL SET SAPPHIRE & DIAMOND PENDANT: 9 square step cut sapphires are invisible channel set into the center of this round 18K white gold pendant and approximate 1.75 CTW. 16 round brilliant cut diamonds are pave set around the sapphires. Measures .5625'' in diameter. Weight 4.4 grams. Sold with current Florida Diamond Appraisers GIA graduates appraisal for $3750.