These are Ethiopian black opals. The size is approximately width x height x thickness: 7.8 x 10.0 x 6.0mm, 8.0 x 10.0 x 6.5mm. A set of 2, totaling 4.1ct. They are new and unused, with no noticeable scratches or abrasions, but as natural stones, there may be fine scratches or cracks. Please check the photos. If you are satisfied, please proceed with the purchase. Price reduced from 2200 to 990. Thank you.