![[Limited to 18 stones] [Mr. KEN] 1 stone loose Andalusite from Spain (Rose cut, 4.0mm) [Multiple purchase discount] [Yuichiro Abe's work motif]](http://store.karatz.jp/cdn/shop/files/collage_cd13e4f3-2d31-4d02-b9d3-66c868acfcc9.jpg?v=1706791241&width=4000)
![[Limited 7 stones] [Mr. KEN] 1 stone loose Andalusite from Spain (Rose cut, 3.5mm) [Multiple purchase discount] [Yuichiro Abe's work motif]](http://store.karatz.jp/cdn/shop/files/collage_174f3218-4e2b-4188-905d-f0874a8ffa2b.jpg?v=1706791198&width=4000)
FLUCUSH "Semi-custom pinky ring frame"
Sale price¥64,800
Spiritosa (no side stones) {Semi-custom ring setting}
Sale price¥89,800
![[Limited stock] Bakuten!! Collaboration Jewelry - Onaga Earrings (Earrings)](http://store.karatz.jp/cdn/shop/files/PB140118.jpg?v=1700134328&width=3744)
[Limited stock] Bakuten!! Collaboration Jewelry - Onaga Earrings (Earrings)
Sale priceFrom ¥27,800
![[Mr. Yukio Shimizu, representative of Shimizu Kiseki] Jewelry Shogi (Hand-polished Shogi)](http://store.karatz.jp/cdn/shop/products/P1280005.jpg?v=1654354237&width=4000)
Additional charge for resizing: 750 yen
Sale price¥750
Additional charge for resizing: 2,500 yen
Sale price¥2,500
Additional charge for resizing: ¥7,750
Sale price¥7,750
![[On Sale Oct. 30 (Fri) at 10 PM] "Sakura Wars" × KARATZ Collaboration: 30th Anniversary Sakura Shinguji Model Ring](http://store.karatz.jp/cdn/shop/files/sub13.png?v=1792134030&width=1448)
![[Available 11/1 at 10 PM] 《7 stones limited》 Synthetic Cobalt Spinel (by Mr. Saint-Ger, 3mm hexagonal cut) 《Multi-buy discount available》](http://store.karatz.jp/cdn/shop/files/2026-10-1111.00.09.png?v=1791684034&width=1246)
![[Oct 3, 10:00 PM Release] 《21 Stones Only》 Chic-colored FANCY color diamond gacha, 1 loose stone (0.16ct average), sourced in Hong Kong 《Multi-purchase discounts available》](http://store.karatz.jp/cdn/shop/files/collage_a6b77cfc-715f-4208-8ba2-42d6d800956d.png?v=1790931568&width=2000)
![[Available 10/3 at 10 PM] <limited to stones> Mexican Cantera Opal Gacha - 1 Loose Stone (Avg. 2.5ct) <multi-purchase discounts available></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/P9250397.jpg?v=1790400242&width=4000)
![[10/2 10 PM Sale] <<limited to stones>> Brazilian Bicolor Amethyst Gacha - 1 loose stone (approx. 9x7mm) <<multi-purchase discount available>></multi-purchase></limited>](http://store.karatz.jp/cdn/shop/files/collage_5e97712b-2ccb-4420-9be9-481ee853d563.png?v=1790771941&width=2000)
![[9/20 10 PM Sale] <limited to stones> Brazilian Moss Green Beryl Gacha (0.8ct average, Rose cut) <multi-buy discounts available></multi-buy></limited>](http://store.karatz.jp/cdn/shop/files/collage_eeda1e6d-127b-4359-a416-6d73380a4c5b.png?v=1789863065&width=2000)
![[Sales start 8/13 10 PM] Limited to 12 Stones! Beryl Gacha where you can win a 12mm camellia-cut Limonite in Beryl or Santa Maria Aquamarine with a certificate of authenticity for 45,800 yen. (Multiple purchase discount available)](http://store.karatz.jp/cdn/shop/files/collage_42474086-f487-4265-a1d0-33fa7887cdea.png?v=1786090469&width=2000)
![[On sale Wed, Oct 7 at 6:00 PM] "Hell Teacher Nube" Anime x Jewelry Specialist KARATZ Collaboration: "Demon Hand Figure" Silver Model (Limited to 24 pieces)](http://store.karatz.jp/cdn/shop/files/8b37df37905d747c69081097556f9eb5.jpg?v=1772776412&width=4500)
![[Available until Friday, Nov 13] Anime "Assassination Classroom" x KARATZ Collaboration: Koro-sensei Model Bracelet](http://store.karatz.jp/cdn/shop/files/ansatsu_bnrC_5_1080x1080_a307a391-2381-4edd-a09a-3a2caaa72c1d.jpg?v=1760620220&width=1080)
![Limited to 7 stones: Brazilian Limonite in Quartz, 1 loose stone (average 6 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_10790d8c-055f-404e-b91b-4dc8a6f1ff16.png?v=1756029326&width=2000)
![[Limited to 6 stones] Contains 2 stones in total: 1 gemstone (rough stone) that is actually featured in a gemstone encyclopedia + 1 emerald rough stone.](http://store.karatz.jp/cdn/shop/files/collage_5fd345f1-1646-43a1-b347-1e83dd089a63.png?v=1751925957&width=2000)
13-stone diamond half eternity ring set (VS class, D-G color, H&C, 2.0mm)
Sale price¥158,000
Madeleine "Semi-custom ring setting"
Sale price¥89,800
Madeleine "Semi-custom ring setting"
Sale price¥89,800
Madeleine "Semi-custom ring setting"
Sale price¥89,800
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.