3.21cts multi color Sterling Opal Heart Pendant The opal is said to be "Mother Nature's fireworks" and Sterling Opal produces cultured opal with the same exciting play of color, light and flash as found in natural opal. ... Lab grown cultured opal has never looked better! Sterling Opal creates opal from Mother Nature's ingredients with a result to rival natural opal. The potch lines are black and are random like a natural opal, and some patterns are like snake or honeycomb pattern that is in Ethiopian opal. The moulds are 40 mm in size for the mixture to grow in. Nano silica in micro spheres in silica are grown and no dyes are used to make these opals. This makes the opals similar but different just like natural opal with veins and patterns and different light reflection patterns. Sterling Opal - A New Man Made Synthetic Opal Shape: Heart Identification: Sterling Opal Metal : Sterling Silver 925 Measures : 30 x 16 x 4,3 mm ( Measure including the hook ) Grams: 3,06 Copy and paste these link to watch the video of this Sterling Opal Heart Pendant on YouTube https://www.youtube.com/watch?v=oV75qdQhLH0 Registered shipping with tracking Note that: The photos are taken in cold light, I don't use any filters, but sometimes they can vary a bit from seeing them in reality. And also take into account the measurements and weight when it comes to small stones, the photos are enlarged to see them better and in all details.