Opal Birthstone Charm Set in 24K Gold Vermeil Over Sterling Silver-October Birthstone SKU# BR_MD_C_12_GOLD_OP $32.00 Genuine opal set in 24K gold vermeil over sterling silver. Cable chain option is an adjustable 16-18 inch length. Charm Only as Shown $32 Add Gold Chain $72 Add Gold Bangle $137      matching items: