This is an elegant pendant top with a very beautiful play-of-color effect. The play-of-color shines on the front, making it look so lovely that you can tell it's an opal at a glance. (This is a personal impression.) There is a silver 925 stamp. The opal size is approximately 8mm. The opal itself is thick and has a solid presence. I'm not sure if the diamond at the top is real. Also, as it is a used item, there may be small scratches, so please judge from the photos. I thought it was well-calculated because it shines beautifully at the angle when worn as a necklace. It's personally the most beautiful opal I own, so I hope someone will wear it ( ¨̮ )♪ Material: SV925