Silver‎ Heart Pendant on Silver Chain Necklace Thai FAS Fused Alloyed Silver

Silver Heart Pendant on Silver Chain Necklace. Black design over silver heart with silver swirl accents. There are small stones but I'm not sure what type they might be. Stamp inside back of heart says "Thai FAS" (Fused Alloyed Silver). Heart is just over 3/4" high not including bail. Chain measures 18" long. Spring ring closure. No other markings or brands. Preowned.