Antique Natural CLEAN Gem Blue Sapphire 3.57 Ct OVAL Cut 10.7 X 8.2mm. GEM QUALITY SAPPHIRE. These are very old Sapphires that were used in the manufacturing of antique jeweler old stock from a retired New York gem dealer. Selling off my entire inventory of gems. You will be more than satisfied with this stunning Sapphires. No reserve auction starts at $9.99