Rings › 1.0Ct 18Kt Yellow Gold & Platinum Diamond Ring - SQ5362715 Image 1 of 1 1.0Ct 18Kt Yellow Gold & Platinum Diamond Ring - SQ5362715 $14,600.00 18Kt Yellow Gold & Platinum Diamond Ring. Total Diamond Weight 1.0Ct. IGI Certified H I Clarity. Size M. Add To Cart Added! 18Kt Yellow Gold & Platinum Diamond Ring. Total Diamond Weight 1.0Ct. IGI Certified H I Clarity. Size M.