Here is a Fine Tiffany & Co Platinum Elsa Peretti Diamond Ring.  Made from Solid Platinum 950 and weighs 2.8 grams. It holds .06Ct F Color Vs Clarity Round Brilliant Diamonds.  Ring is a size 4 which can be sized for FREE Upon request ( Sizing will most probably ruin hallmarks due to the fact that they are so close to each other ).  Hallmarked Tiffany & Co, PT950, Elsa Peretti, Spain.  Retail is $1,885 + Tax!