Here is a Fine Tiffany & Co 18kt Gem Sapphire Diamond Yellow Gold Band Ring.  Made from Solid 18Kt Yellow Gold and weighs 3.8 grams.  It holds 13 Natural Caray ( Smaller Cut Asscher Cut Diamonds ) and 13 Natural Gem Sapphire that all add 1.30Ct, the diamonds are F-G Color VS1 Clarity.  The ring is a size 4 1/4 , PERFECT CONDITION, and is 3.5mm wide.  Hallmarked Tiffany & Co, 750.  Comes with a Tiffany & Co Inner & Outer Ring Box.  Retail $7,000 + Tax!