Brazilian Sky Blue Topaz 0.746ct Loose Stone
Sale price¥8,800
Mali Garnet (Grossular/Andradite Garnet) 0.675ct Loose Stone
Sale price¥15,800
Tanzanian Kornerupine 3.4mm/0.185ct Loose Stone
Sale price¥9,800
Cornelpine from Tanzania 0.331ct loose
Sale price¥22,800
Montana Sapphire 0.361ct loose (yellow sapphire)
Sale price¥12,800
Montana Sapphire 0.515ct loose (bicolor sapphire)
Sale price¥15,800
Myanmar color change zircon 1.00ct loose (reverse color change)
Sale price¥69,800
Auinite 2.4mm/0.064ct loose
Sale price¥8,800
Auinite 2.6mm/0.084ct loose
Sale price¥8,800
Auinite 2.3mm/0.060ct loose
Sale price¥6,980
Cambodian blue zircon 0.267ct loose
Sale price¥6,980
Cambodian blue zircon 0.217ct loose
Sale price¥6,980
Cambodian blue zircon 0.197ct loose
Sale price¥5,980
Cambodian blue zircon 0.258ct loose
Sale price¥6,980
American red beryl 0.184ct loose
Sale price¥39,800
Yellow sapphire 0.464ct loose
Sale price¥9,800
Yellow sapphire 0.294ct loose
Sale price¥8,800
Australian shell opal 53.277ct rough stone
Sale price¥59,800
Australian rainbow lattice sunstone 0.378ct loose
Sale price¥3,980
Australian rainbow lattice sunstone 0.587ct loose
Sale price¥4,980
Aquamarine in quartz 18.954ct rough stone
Sale price¥18,800
Rutilated Quartz (Rutilated Quartz) 9.721ct Loose (Sun Rutilated Quartz)
Sale price¥25,800
Rutilated Quartz (Rutile Quartz) 7.440ct Loose (Sun Rutilated Quartz)
Sale price¥18,800
Brazilian Paraiba tourmaline in quartz 1.602ct loose
Sale price¥39,800
Brazilian Medusa Quartz (Paraiba Quartz) 1.317ct loose
Sale price¥18,800
Brazilian Medusa Quartz (Paraiba Quartz) 2.524ct loose
Sale price¥29,800
Indian Cavansite 240.461ct rough stone
Sale price¥8,800
South African Rhodochrosite 1.820ct Loose Stone
Sale price¥128,000
Zimbabwe Green Diamond Rough (Sawable) 0.428ct Rough Stone with Trigon
Sale price¥158,000
![[Sales end on Sunday, May 10] Anime "Assassination Classroom" x KARATZ Collaboration Clear Card (7 types, random)](http://store.karatz.jp/cdn/shop/files/ansatsu_clearcard_8.png?v=1764653490&width=1080)
![[Sales End on Sunday, February 8th] TV Anime "Date A Live V" x KARATZ Collaboration Foil-Stamped Glitter Can Badges (8 Types)](http://store.karatz.jp/cdn/shop/files/2_b6b9535f-4ba7-4b6d-aa24-653f73757ecc.png?v=1755675367&width=1080)
![[On sale May 5th at 10 PM] Limited to 10 stones: Top-quality benitoite (2mm, round cut) loose gemstone (multiple purchase discount available)](http://store.karatz.jp/cdn/shop/files/PC080074_50a7da98-e5da-4a97-bdb2-a97224e584da.jpg?v=1715001409&width=3569)
![[Sales End on Monday, January 12th] TV Anime "Tokyo Ghoul" x KARATZ Collaboration Touka Wakame Necklace](http://store.karatz.jp/cdn/shop/files/1080x1080px_c3970179-b04e-452b-95dd-2bf9bc8fd605.jpg?v=1749304991&width=2250)
![[Sales end on 5/10 (Sun)] Assassination Classroom x KARATZ Collaboration Can Badge (Complete Set)](http://store.karatz.jp/cdn/shop/files/ansatsu_canbadge_8.png?v=1764653424&width=1080)
![[Sales end on Tuesday, May 5] TV Anime "2.5 Dimensional Seduction" x KARATZ Jewelry Store Collaboration Acrylic Stand](http://store.karatz.jp/cdn/shop/files/OEM-20251224-ACF-01_04.jpg?v=1770345016&width=800)
![[On sale Friday, March 13th at 10pm] Anime "Hell Teacher Nube" x KARATZ Collaboration Original Clear Postcard Set](http://store.karatz.jp/cdn/shop/files/428aad1349d1b6062359ea69c02bc6d8_6a1b25e9-611b-4c68-9588-eedff19a7429.jpg?v=1760420792&width=4500)
![[Sales End on Monday, January 12th] TV Anime "Tokyo Ghoul" x KARATZ Collaboration: Newly Illustration Triple Acrylic Keychains (2 Types)](http://store.karatz.jp/cdn/shop/files/3_d8d4b5d7-9ae0-440a-b64d-ec6904c5f96a.jpg?v=1749308058&width=2250)
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.