Aquamarine graduated necklace with platinum over sterling clasp

This necklace is in excellent pre owned condition showing little to no signs of wear.  Beautiful natural pale colored aquamarine faceted beads strung in graduated sizes from about 6-9 mm. Measures about 20 inches in length. Platinum plated over sterling silver lobster clasp with 1 inch chain extension.  Has a total weight over 37 grams. 925 BBJ .