Platinum Custom Made Diamond Ring. 0.63 Cushion CutLadies Platinum diamond ring featuring an old Cushion cut diamond weighing 0. 63 carat weight of (SI 1) in clarity and (E) in colour. This stone is surrounded by a halo of 46 x 0. 54 total carat weight of Brilliant cut diamonds of (VS) in clarity and (E F G) in colour. Diamonds are also set around the band. Beautiful filigree detailing. Custom made. Current finger size: 6. This ring cannot be resized as the diamonds go all the way around the shank