4.5ct opal & 18k handmade chain necklace Shannon Carney Jewelry $ 0.00 Default Title - $ 0.00 Quantity This product is currently sold out. Please fill in the form below if you'd like to be notified when it becomes available. Product details: 4.5 carat opal with beautiful blue and green flash 18k solid yellow gold setting, chain and clasp, hammered 18k handmade chain is 17" long Opal setting is approximately 9/10" x 1/2"