Kingman Turquoise Mine located in Northern Arizona in the town of Kingman, Az. The mine is owned by good friend’s of mine and has been in their Family for generations. Kingman has been stabilizing turquoise for many years and is respected as the world leader in stabilizing turquoise. 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. Size is Approximate give or take .5 mm The photos in this listing are taken in natural sunlight, yes this is the worse conditions for photographing turquoise, we do this so when you get the stone you will be delighted how it looks in your hand. 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: 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.