An 18k gold and platinum diamond solitaire ring
An 18k gold and platinum diamond solitaire ring
Round gold band set with a brilliant-cut diamond of 4.32 ct (10.46 - 10.55 x 6.34 mm, very light yellow, P-R, vs2, proportions excellent, symmetry very good, polish very good) in a platinum chaton setting. Hallmarks: Fineness PT950, 750, maker's mark. Ring size 52. Weight 10.9 g.