Deep Blue Heart of the Ocean Opal Pendant in SilverThis natural Australian heart opal pendant is as deep as the ocean. Very mesmerising indeed. The pattern of this opal is called a flagstone opal, similar to the Harlequin pattern, except the blocks of colour are irregular shaped. It's a very desired colour (deep blue) and pattern within an opal. This is a SOLID Lightning Ridge black opal, not a doublet or triplet (meaning it's NOT glued to another stone!). Did you know that blue opals and heart shaped