Cultured freshwater coin pearl necklace with sterling silver clasp and extension

This necklace is pretty much brand new as it doesn’t show any signs of wear.  White cultured freshwater coin shaped pearls measuring about 18-19 inches in length. Sterling silver lobster clasp with 2 inch extension. I believe this is a Lucas Lameth design. 925 LUC. I believe the clasp and extension are rhodium plated over sterling