I recently acquired a nice light blue chunk of Guatemalan jadeite called Ice Blue (or Luna Blue) Jade. It is an amazing shade of light blue with semi-transparency to it. Very fine tight grain polished up to a mirror finish.
These double flared plugs are 8mm in size, with a 10mm wearable and 2.1mm flares, faces are slightly convex. You will receive the exact pair pictured.