![Limited to 32 stones: Namibian Mandarin Garnet, 1 loose stone (round cut, 2.5mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/PB130022.jpg?v=1763179441&width=4000)
![Limited to 20 stones: Brazilian Paraiba tourmaline (cabochon cut, approximately 2.2 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/PC190060_c4f87b12-3b41-4e2d-a32f-2338f4edfd21.jpg?v=1766651520&width=4000)
![[Sales start on Wednesday, April 29th at 10 PM] TV Anime "Dr. STONE" x Jewelry Store KARATZ Collaboration Can Badge](http://store.karatz.jp/cdn/shop/files/OEM-20260115-BAT-01.jpg?v=1775451713&width=3889)
Bizarro "Semi-custom ring setting"
Sale price¥89,800
![Limited to 15 stones: One loose, unheated silky pink sapphire from Vietnam (2.5mm, round cut) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010261_a395415b-ed3a-4054-93e9-3ef1eec4d810.jpg?v=1757670251&width=4000)
![[Sales start on Wednesday, April 29th, at 10 PM] TV Anime "Dr. STONE" x KARATZ Jewelry Store Collaboration Mini Character Can Badge](http://store.karatz.jp/cdn/shop/files/OEM-20260213-BAT57-01.jpg?v=1775529463&width=3889)
![[Sales Start: May 5th, 10 PM JST] Limited 12 Stones - Alexandrite Gacha with Alexandrites from Different Origins, including Russian Alexandrite (normally 69,800 JPY), plus a bonus Sri Lankan Chrysoberyl crystal. Multiple purchase discount available.](http://store.karatz.jp/cdn/shop/files/collage_5a6f127c-f435-4118-96c7-e2519cfa5cc0.png?v=1777629286&width=2250)
![[Option] Paraiba Tourmaline component analysis sorting issuance fee](http://store.karatz.jp/cdn/shop/products/P6062508_58dd99d0-190a-4656-98c6-53c5ff54428e.jpg?v=1680959036&width=4000)
[Option] Paraiba Tourmaline component analysis sorting issuance fee
Sale price¥5,000
Additional charge for resizing: +3,000 yen
Sale price¥3,000
Diamond loose sorting transition fee
Sale price¥3,000
“Bakuten!!” x KARATZ collaboration jewelry/onaga ring
Sale priceFrom ¥25,800
![[Jeweler's Tools] Limited Edition Chelsea Color Filter Emerald 2-Piece Set](http://store.karatz.jp/cdn/shop/files/collage_057412df-b83f-456f-b7c8-ff5d87550e46.png?v=1743666005&width=4000)
![[Available at 10 PM on January 24th] Limited to 18 stones: Golden Hill Turquoise from Kazakhstan (December birthstone, average 1.3 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010205_fcbc6430-2476-4eb1-973e-e93281536727.jpg?v=1772175779&width=4000)
![[On sale May 3, 10 PM JST] 《Almost Sold Out》Garnet Gacha (Round Cut, 2.5mm) Cut by American Polishing Artisan KEN 《Multiple Purchase Discount Available》](http://store.karatz.jp/cdn/shop/files/P1010082_5eb2bba9-197a-4b57-ac46-572d82ed5f81.jpg?v=1777522581&width=4000)
Additional fee +6,000 yen
Sale price¥6,000
Spiritosa (with side stones) {Semi-custom ring setting}
Sale price¥94,800
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.