25 - 14 Karat White Gold and European Cut Diamond Lady's Engagement Ring, Size 7. Center Diamond Old European Cut Measuring 6.4mm Diameter and 4.0mm Depth, Weighing Approximately .96 Carats of K-L Color and SI1 Clarity. Circa 1866 to 1922. Signed with 14K Austro-Hungarian Hallmark and Makers Hallmark. Diamond Has an Old Chip to Girdle Edge or else Good to Very Good Condition. Weighs 3.0 Grams or 1.8 Pennyweights. Shipping $20.00 (estimate $400-$600)