7mm Blue Sapphire Dark .NAB01 Flat Back Acrylic Round Cabochon Pro Grade - 100 Pieces

They appear much bigger and much more of them in the picture, so be aware of that. And definitely pay attention to the 7mm part. Very very small. My mistake for not paying more attention. But thought 1 would be like the size of my nail. So definitely take note of the 7mm part. Definitely missed that.