Blue Moon Nugget cuts, these are specialty cuts. The top is left all Natural, the back is flat, polished and sides trimmed so they will fit in a bezel. The Blue Moon Turquoise Mine located in Nevada this mine is owned by some good friends I have known for years. I buy my rough direct from the miners giving me the best price and that bonus of PROVENANCE. Provenance for those that are new to the business simply says my Blue Moon Turquoise can be tracked back to the mine and there is NO guess work as to where the material came from. Provenance is important because it adds value to the stone. The Son and I do all the cutting work we never farm it out. We are Native American gem cutters; we are registered members of the federally recognized Native American tribe Wichita Indians out of Oklahoma. To be clear “100% NATURAL” it is all turquoise no backing was used If it just says “NATURAL” it is natural and backed with JB Weld. The photos in this listing are taken in natural sunlight on a white background. I do this because any color background except white can alter the colors in the photo. I realize Direct sunlight and white background is the worst possible conditions to photo in. I would rather have you say it looks so much better in hand then be disappointed when you get the stone. If you would like a photo in shade, just ask. Size is Approximate give or take .5 mm Note: In the event of any typos in this listing, the item in the photos is the one or ones you will receive if you purchase this item. PLEASE NOTE: In the event of any typos in this listing, the item in the photos is the one or ones you will receive if you purchase this item. Some countries don't allow gemstones to be shipped to their citizens. Please check with Customs before making your purchases. If you live in one of the countries that don't allow gemstones to be imported and you buy from us, we will issue a refund and not ship the item. We offer a “NO HASSLE” seven-day refund with return shipping paid by the buyer. Our return policy starts when you receive the stone or it hits your PO Box, Buyer Pays return Shipping.