![[Available at 10 PM on March 8th] [New Arrivals in Tucson - Limited to 17 Stones] High-Quality Brazilian Dumortierite in Quartz with Excellent Transparency [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/P1010952.jpg?v=1771553165&width=4000)
【3/15 22時販売】《ツーソン新着・限定11石》ファセットカットのブラジル産デュモルチェライトインクォーツ《複数購入割引有》
Sale price¥5,980
![[On Sale 3/11 at 10pm] Brazilian Dumortierite in Quartz 0.699ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P3038334_d2b57737-169a-4c58-88c7-addcb3b873d5.jpg?v=1773008980&width=3214)
![[On Sale 3/11 at 10pm] Brazilian Dumortierite in Quartz 0.910ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P3038268_012d16cc-1137-4388-ab2c-0b0235733ce9.jpg?v=1773009091&width=4000)
![[On Sale at 10 PM on March 13th] Brazilian Dumortierite in Quartz 0.642ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P3038224_7e5d15ee-8592-4d98-a6b2-5aa64b508a77.jpg?v=1773235708&width=3145)
![[12562092] Brazilian Dumortierite in Quartz 0.522ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P3028170_0e6d332d-c187-4270-be2c-3ef597898952.jpg?v=1773578604&width=4000)
[12562092] Brazilian Dumortierite in Quartz 0.522ct Loose Stone
Sale price¥5,980
[12562090] Brazilian Dumortierite in Quartz 0.813ct Loose Stone
Sale price¥9,800
[12562089] Brazilian Dumortierite in Quartz 0.796ct Loose Stone
Sale price¥7,980
[12562088] Brazilian Dumortierite in Quartz 0.543ct Loose Stone
Sale price¥5,980
![[Available at 10 PM on February 15th] Limited Quantity Tucson Fun Gacha 💎 Guaranteed 1 Stone from 8 Types (Benitoite, Anthill Garnet, Dumortierite in Quartz, Eudierite, etc.) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/files/2026-02-1318.59.04.png?v=1770976872&width=1281)
![[Available at 10 PM on February 23rd] Limited to 12 stones. Newly arrived in Tucson: High-quality Brazilian Dumortierite in Quartz (faceted cut). Discounts available for multiple purchases.](http://store.karatz.jp/cdn/shop/files/collage_016e0e27-9ca2-4544-af8a-80e61801f764.png?v=1771777590&width=2250)
[On Sale 2/21 10pm] Brazilian Dumortierite in Quartz 1.266ct Loose Stone
Sale price¥12,800
![[12561969] Brazilian Dumortierite in Quartz 0.463ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P2173485_f2f3885b-0409-4039-9423-327c9c88f8ee.jpg?v=1773807074&width=3072)
[12561969] Brazilian Dumortierite in Quartz 0.463ct Loose Stone
Sale price¥4,980
[12561926] Brazilian Dumortierite in Quartz 2.282ct Loose Stone
Sale price¥18,800
Brazilian dumortierite in quartz 6mm/0.852ct loose
Sale price¥8,800
![[1/11 22:00 Sale] Brazilian Dumortierite in Quartz 0.382ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P1088465_f43d3e40-29aa-4624-a2a1-c6d1634e73e3.jpg?v=1767942646&width=3570)
![[12/7 22:00] Brazilian Dumortierite in Quartz 16.250ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052301_931dfc6c-1047-4bdf-821f-203298615d94.jpg?v=1765588004&width=2810)
[12/7 22:00] Brazilian Dumortierite in Quartz 16.250ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 1.131ct Loose Stone
Sale price¥12,800
Brazilian Dumortierite in Quartz 10.0mm/5.357ct Loose Stone
Sale price¥39,800
Madagascar Dumortierite (single crystal) 0.195ct loose stone
Sale price¥89,800
Brazilian Dumortierite in Quartz 1.414ct Loose Stone
Sale price¥12,800
[Posted 12547829] Brazilian Dumortierite in Quartz 0.975ct loose
Sale price¥9,800
[Rouge Cut] Brazilian Dumortierite in Quartz 1.184ct Loose Stone
Sale price¥14,800
[Rouge Cut] Brazilian Dumortierite in Quartz 1.493ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 1.911ct Loose Stone
Sale price¥8,800
Brazilian Dumortierite in Quartz 0.978ct Loose Stone
Sale price¥12,800
Brazilian Dumortierite in Quartz 3.188ct loose stone (faceted cut)
Sale price¥12,800
Brazilian Dumortierite in Quartz 1.284ct loose stone (faceted cut)
Sale price¥9,800
Brazilian Dumortierite in Quartz 1.276ct loose stone
Sale price¥6,980
Brazilian Dumortierite in Quartz 0.578ct loose stone (faceted cut)
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.482ct loose stone (faceted cut)
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.652ct loose stone (faceted cut)
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.313ct loose stone (faceted cut)
Sale price¥6,980
Brazilian Dumortierite in Quartz 0.154ct loose stone (faceted cut)
Sale price¥9,800
Brazilian Dumortierite in Quartz 55.207ct Rough Stone
Sale price¥8,800
Brazilian Dumortierite in Quartz 0.368ct loose stone
Sale price¥12,800
Brazilian Dumortierite in Quartz 3.490ct loose stone
Sale price¥18,800
Brazilian Dumortierite in Quartz 1.256ct loose stone
Sale price¥15,800
Brazilian Dumortierite in Quartz 2.116ct loose stone
Sale price¥18,800
Brazilian Dumortierite in Quartz 1.320ct Loose Stone
Sale price¥14,800
Brazilian Dumortierite in Quartz 2.551ct Loose Stone
Sale price¥19,800
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.