Type: South Sea and Tahitian Cultured Pearl. Size: South Sea pearl: 12.50MM, Tahitian pearl: 12.35MM. Shape: Oval. Body Color: South Sea pearl: White/silver gray, Tahitian pearl: Gray/peacock (deep green/red). Luster: Good. Surface: Slightly Blemished. Nacre Thickness: Very Thick -- 1.0MM to 2.0MM. Matching: Good Match. Origin: South Sea - Australia. Length: Pendant measures 0.80" wide, 2.3" long. Chain is 16" long with a lobster claw clasp. Setting: 18K White Gold. Gem Information: Diamond. total weight 0.52 carat. Diamond quality graded G-H color and VS1-SI1 clarity. Necklace weights 14.8 grams.