Caribbean Blue Opal Inlaid Sterling Silver Pendant. This Caribbean Pendant has been beautifully inlaid with hand cut stones of lab Blue Opal. This captivating, sparkling Blue Opal has been set up against the brilliance of shimmering Sterling Silver. This one features the lost wax image of a mountain landscape in Sterling Silver. Suspended from a complimentary chain, this pendant is 3/4" long and 7/8" wide. Stamped Sterling.