4.02cts multi color Sterling Opal Ring 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: Rhombus Identification: Sterling Opal Ring - lab made Metal : Sterling Silver 925 Measure Ring 25 x 20 x 19,5 mm Ring size: 8 ( USA ) Grams: 5,03 Copy and paste these 2 links to watch the videos of this Sterling Opal Ring on YouTube https://www.youtube.com/watch?v=T0Ws4Ag_LfA https://www.youtube.com/watch?v=ufd8dVHwvk4 Registered shipping with tracking