Art Deco Platinum and 18k Gold Pendant Necklace with Diamonds and South Sea Pearl Art Deco Platinum and 18k white Gold Pendant Necklace Featuring a South Sea Pearl about 13 mm. Accented with Single cut Diamonds weighing Approx. 1.40 carats. H-J color. Pendant measurements: 2.0 x 1.5 inches. Total weight: 17.6 grams. Chain length: 18 inches. Very good conditions. Upon Request, Auction House may provide ring resizing or/and appraisal. This will carry an additional cost. Appraisals are made by our in house GIA certified Gemologist.