Platinum Diamonds Engagement Ring Mount Size 8.5

Tiffany & Co Platinum Solitaire Engagement Ring 0.70ct I VS1 w/Cert Sz 3.25

Antique 1920's Engagement Mounting Hold 6.5-7MM Platinum Ring Size 5.5 UK-K1/2

Platinum Engagement Ring Mounting Setting Round Gemstone Diamond sz6.75