5.1dwt / 7.93 Grams. Main Stone Shape: Oval. Main Stone Creation: Natural. Main Stone Color: Purple. Main Stone Quantity: 5. Estimated Carat Weight: 2.90ctw. Main Stone Length: 7.08mm. Main Stone Width: 4.97mm. Main Stone Depth: 3.37mm. Secondary Stone Shape: Round. Secondary Stone Creation: Natural. Secondary Stone Quantity: 5. Secondary Stone Estimated Carat Weight. Secondary Stone Diamond Color Grade: H – I. Secondary Stone Diamond Clarity Grade: SI1 – SI2. Necklace Measurement: 17.5 Length / 2.2mm Width. Drop Measurement: 1.75″ x 1″. Each preowned estate piece of fine jewelry is assessed by a jewelry professional and professionally renewed and polished for you.