151 - Circa 1950's Important Lady's 30 Carat Round Brilliant Cut Diamond and Platinum Necklace Set with Ninety-Two (92) Graduated Diamonds F-G Color, VS2-SI2 Clarity with Several Diamonds SI3. Center 3.18 Carat Diamond Measures 9.4mm Diameter by 5.9mm Depth, with Flanking Pair of 2.03 Carat and 1.70 Carat Diamonds Measuring 8.0mm by 5.2mm and 7.7mm by 4.7mm Respectively and Next Further Flanking Pair .85 Carat and .87 Carat Diamonds Measuring 6.0mm by 3.9mm and 5.95mm by 4.0mm Respectively and Next Further Flanking Pair .81 Carat and .80 Carat Diamonds Measuring 5.8mm by 3.95mm and 5.8mm and 3.65mm Respectively. Unsigned. Good to Very Good Condition with Double Locking Safety Clasp. Measures Approximately 17 Inches Long. Weight: 43.40 Pennyweights; 67.7 Grams. Shipping $48.00 (estimate $25,000-$30,000)