- Madeline Platinum .36CT T.W. Canadian Diamond Accented Solitaire Engagement RingUS$ 1,200.00Total diamond weight .37ctSindy 1/3 carat diamond ring solitaire in platinum for ladiesUS$ 1,425.00Total diamond weight .38ctChapira Platinum Tension-Set .30CT Canadian Diamond Solitaire Bridal SetUS$ 1,800.00Total diamond weight .30ctRio Classic Three-Stone Design Delicate Diamond Platinum Engagement Ring For WomenUS$ 750.00Total diamond weight .26ct