- Chapira Platinum Tension-Set .30CT Canadian Diamond Solitaire Bridal Set$2,400.00Total diamond weight .30ctMadeline Platinum .36CT T.W. Canadian Diamond Accented Solitaire Engagement Ring$1,600.00Total diamond weight .37ctGraceful 1/6 carat Canadien diamond solitaire ring for ladies in 18k gold and platinum$1,750.00Total diamond weight .30ct