One polished, stamped, and tested 18 karat white gold necklace mounted with 309 genuine round diamonds weighing approximately 5.50 carats. The necklace measures 17 inches in length and is finished with a tension lock clasp and safety clasp. This item weighs 37.4 grams, condition is new, excellent workmanship. MAIN GEMSTONES Identity: Natural Diamond Shape: Round Cutting Style: Brilliant Cut Quantity: 309 Diamonds Measurements: 1.0mm to 1.7mm Total Weight: 5.50 carats Color Grade: G - I Clarity Grade: VS2 to SI2 Cut Grade: Very Good Refractive Index: 2.418 Specific Gravity: 3.52 +/-0.01 Hardness: 10 TOTAL DIAMOND WEIGHT: 5.50 cts WEIGHT OF ITEM: 37.4 grams GOLD CONTENT: 18K White Gold Orianne |18K| Diamond NK012608