Posted on July 2, 2023March 24, 2024 Tiffany & Co. 15.60 Cts Unheated Ceylon Blue Sapphire and Old Mine Diamond Platinum Ring GIA Certified at Old South JewelsSome links on this website are eBay affiliate links. Share this:TweetShare on Tumblr Email a link to a friend (Opens in new window) Email Print (Opens in new window) Print By fomalhaut66Categories: DiamondTags: diamond, ring, sapphire, Tiffany & Co.