18K CHAMPAGNE DIAMOND BROOCH: Ca 50s/60s, Dutch. One .60 CT old mine cut diamond centers this European made 18K yellow brooch and is a natural yellow/brown in color. 24 additional old mine cut diamonds approx 4.40 CTW and vary in color from brown to yellow brown and orangey brown. European hallmark. Total diamond weight approx 5.00 CTW. Weight 9.6 grams. Sold with current Florida Diamond Appraisers GIA graduates appraisal for $9850. Est. $5000/10000**