ITALIAN 18K & PLATINUM 1.05 CTW DIAMOND DOME RING: 18K yellow gold shank supports a beautifully detailed 18K yellow gold and platinum dome with 11 old mine cut diamonds set into 3 of the ribbons of platinum. Size 5. Total weight approx 7.93 grams. Marked Italy and 18K with a maker's mark. Sold with current Florida Diamond Appraisers GIA graduates appraisal for $4000.