PLATINUM 6.0 CTW DIAMOND EDWARDIAN BROOCH: Very fine pierce work is the backdrop for this beautifully done Edwardian brooch set with 117 old mine cut and old European round cut diamonds approx 6.0 CTW, VS-SI in clarity and I-J-K in color. Weight 113.0 grams. Sold with current Atlanta Gemological GIA graduate's appraisal for $16,000. Est. $9000/16000**