Ladies 18 karat white gold blue topaz and diamond necklace designed by Charles Krypell featuring a pendant with one prong set pear shaped london blue topaz weighing 1.75 ct. Accenting the pendant are 12 prong set round brilliant cut diamonds weighing 0.35 ct. The diamonds are G-H color, VS1-SI1 clarity. The necklace with a lobster claw clasp measures 17.00 inches in length and weighs 4.70 grams.