PLATINUM 3.0 CTW DIAMOND RING: 1,50CT center stone is SI2 in clarity and I in color. It is flanked by 2 round brilliant cut diamonds approx 1.50 CTW, rated SI2 in clarity and I in color. Weight 6.9 grams. Size 5.5. Sold with current Atlanta Gemological GIA graduate's appraisal for $20,550. Est. $9500/21000**