Unheated Brazilian Color Change Paraiba Tourmaline 0.30ct Loose GIA
Sale price¥1,280,000
YAG (Yttrium Aluminum Garnet) 6.5mm/1.548ct loose stone
Sale price¥12,800
Bicolor sapphire 0.292ct loose
Sale price¥22,800
![[Available at 10 PM on September 21st] Pink Diamond Loose Gacha! 💎 Fancy Orangey Pink 0.188ct and other Fancy-colored pink diamonds (all stones sorted or certified) {Multiple purchase discounts available}](http://store.karatz.jp/cdn/shop/files/collage_77e19baa-d474-4551-a796-86a20bfbd0ba.png?v=1758275456&width=2250)
![[Available at 10 PM on September 21st] Rainbow Garnet (Rose Cut, 3.0-5.5mm) Loose Stone from Tenkawa Village, Nara Prefecture (Multiple Purchase Discounts Available)](http://store.karatz.jp/cdn/shop/files/5_6da161f9-2525-4fc5-a277-9a7adb122a53.png?v=1758169841&width=4000)
[10/15 22:00 Sale] American Benitoite 0.157ct Loose Stone
Sale price¥98,000
Lottery Sale 092109_Brazilian Blue Anatase 0.424ct Loose Stone
Sale price¥69,800
Brazilian Paraiba tourmaline 0.065ct loose (CuO:2.0%, MnO:2.6%)
Sale price¥22,800
![[On sale September 14th at 10 PM] {Only one left} Blue Sapphire Gacha includes two unheated royal blue sapphires (with AIGS certificate) (plus one Teppanawa Mine sapphire) {Multiple purchase discounts available}](http://store.karatz.jp/cdn/shop/files/2_d319ea2c-a474-49aa-82c2-aff988fde6b8.png?v=1757212957&width=2000)
![[Available at 10 PM on September 7th] Limited Quantity Gem Gacha 💎 Win 1 or 2 gems, including pink diamonds and 46ct cantera opals. Discounts available for multiple purchases.](http://store.karatz.jp/cdn/shop/files/collage_4adc8ce7-8178-47a9-a0ef-2cf85454ece6.png?v=1757206237&width=2000)
![[Lottery sale: Friday, October 31st, 10:00 AM] 102504_Oil-free red beryl 2.5mm/0.050ct loose GIA](http://store.karatz.jp/cdn/shop/files/P9128509_2554e39d-18e2-4579-b5f9-56bf08927de5.jpg?v=1761264759&width=2688)
![[Available at 10 PM on September 6th] Limited to 10 Blue Stones Gacha (Paraiba Tourmaline, Cobalt Garnite, Indigo Tourmaline with Certificate of Authenticity, Zimbabwean Euclase with Certificate of Authenticity) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/collage_60855bde-a7a8-410f-8b3c-f4a74a0ad345.png?v=1757144518&width=2000)
Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.
So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.
KARATZ's Initiatives and Social Contributions
We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.
KARATZ Books
These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.
jeweler's tools
For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.