This product is a 14.75 ct natural Mexican fire opal oval cabochon gemstone, measuring 16x18x7 mm. The gemstone is opaque, with a vibrant color as seen in the picture. It is a single piece of excellent cut grade, polished, and eye clean gemstone. This handmade opal is sourced from Mexico and has not been enhanced. Perfect for jewelry and watch making, this unique gemstone will add a touch of elegance to any piece.