We warmly welcome purchases of loose gemstones! However, please feel free to contact us if you would like us to create jewelry for you. We have received many inquiries from customers who have purchased gemstones as loose stones but are unsure where to have them made into jewelry. Therefore, we are now offering custom jewelry creation services on Mercari. If you purchase an item from us, we will create a unique, comfortable-to-wear, one-of-a-kind piece of jewelry through a full custom order, rather than using pre-made settings. "We only offer gemstones of a grade that we believe will retain their value for a lifetime or be passed down through generations!" October Birthstone: Natural Opal 【Professional Grade】 "This faceted opal is special! It displays a variety of colors across its entire surface without any gaps. Among them, the highest-grade red flashes of color are clearly visible. And this extends all the way to the back! This high-quality opal from the famous Ethiopian mines has been cut with the same precision as diamonds by a skilled craftsman in Japan. How about this stunning and rare natural opal?" ☆ Comes with a reliable gem identification sorting report. 0.219 Carats Diameter: 4.80 mm Thickness: 2.63 mm ☆ Hello, I'm a gemstone enthusiast. I studied gemstones for two years at the Hiko Mizuno Jewelry College in Shibuya. My wife is also a graduate of the same school, and we are currently enjoying raising our three daughters and one son. My main business is in Thailand, the world's largest gemstone trading hub. For 30 years, I have been running a factory for wholesalers from Japan and around the world. During that time, I have also opened shops and personally collected gemstones (loose stones) that I liked. Here, I am offering the gemstones I personally enjoy and collect as a hobby at Thai local prices. I hope that this will make high-end gemstones more accessible to more people, and that you will enjoy the charm of the authentic gemstone world. I only offer gemstones (loose stones) that I myself would want to keep for a lifetime, so please feel free to browse with confidence. Thank you for your interest.