Australian opal with high transparency. There are small inclusions of matrix. Rhodium-plated for tarnish resistance. Handmade with sturdy construction. Stone size: Approximately 12 x 7 mm * Please feel free to ask if you have any questions. * Images may differ slightly from the actual product due to lighting and camera performance. * Packaging uses recycled materials. If you prefer beautiful packaging, we apologize, but please handle it yourself...