1.80 Yellow Diamond Engagement Ring in Platinum 18k Yellow Gold.  This modern engagement ring features a GIA-certified 1.80 carat yellow diamond and 1.10 carats of accent diamonds finished in platinum and 18 karat yellow gold. The center yellow diamond is set in four (4) 14k yellow gold prongs and has a vibrant, honey-golden hue. The center diamond features a powerful brilliance, with facets cut into a rectangular, modified brilliant shape. The fire and light play within the stone is supreme. Two (2) .55 carat accent diamonds, each near colorless and sparkling, are prong set in platinum and cut into half-moon shapes. The diamonds are finished on a thick, shimmering platinum band. A cosmic engagement ring to take your breath away!