Condition: Pre-owned - Good: This item has been gently used but is in good condition. It might have a few signs of wear, like light scratches or tarnishing. All imperfections should be shown and described in the seller’s listing. ,Brand: Tiffany & Co.,Main Stone: See Description,Metal: 18K White Gold,Metal Purity: 18K,Ring Size: 7.75,Base Metal: Gold,Type: Ring,Seller Warranty: Yes Tiffany & Co. 18K White Gold Pink Tourmaline & Diamond Dome Ring TIF11081914 Luxurious and feminine, this ring from Tiffany & Co. is sure to be treasured for many years to come. The ring is made of 18K white gold and features a glittering white diamond and pink tourmaline pave.