Watermelon tourmaline 44.201ct Ruth Japanese-German book
Sale price¥398,000
Paudlettite 0.375ct loose Japanese-German book
Sale price¥298,000
Particolor tourmaline 32.207ct loose (tricolor tourmaline)
Sale price¥398,000
Russian demantoid garnet (horsetail recognized) 5.8mm/0.876ct loose
Sale price¥258,000
Russian demantoid garnet (horsetail recognized) 5.3mm/0.633ct loose
Sale price¥198,000
Bangkacha sapphire (star sapphire) 69.655ct loose
Sale price¥148,000
【9/7 22時販売】【甲州貴石切子】K18ローズクォーツ15.964ct ネックレス 日独鑑
Sale price¥128,000
【9/6 22時販売】フローレスダイヤモンド（H&C） 4.0mm/0.266ctルース(D, FL, 3Excellent H&C) GIA＆中宝鑑
Sale price¥188,000
【9/6 22時販売】ピジョンブラッドルビー 5.2mm/0.930ctルース AIGS
Sale price¥198,000
![[On Sale at 10 PM on September 5th] Pt950 Myanmar Gray Spinel (Platinum Spinel) 5.5mm/0.685ct Black Diamond Ring](http://store.karatz.jp/cdn/shop/files/collage_9d2c63d9-eb14-4afd-9368-cacc817cec80.png?v=1756858734&width=2000)
Emerald 15.219ct loose Japanese-German book
Sale price¥298,000
Bicolor Sphene 4.50ct loose
Sale price¥258,000
Colombian Euclase 548.00ct rough stone
Sale price¥198,000
Kunzite 50.260ct loose
Sale price¥188,000
Diamond 0.618ct loose (I, I1, tree cut)
Sale price¥128,000
[12557240] Russian emerald 0.249ct loose stone
Sale price¥158,000
Russian demantoid garnet (horsetail recognized) 5.2mm/0.633ct loose
Sale price¥198,000
Unheated sapphire 2.430ct loose GIA
Sale price¥298,000
Tanzanite 41.690ct loose
Sale price¥2,480,000
Brazilian Pink Imperial Topaz 2.794ct Loose Japanese-German Edition
Sale price¥128,000
Peach benitoite 0.135ct loose Japanese-German book (orange/blue)
Sale price¥158,000
Bicolor Benitoite 0.624ct Loose Japanese-German Edition
Sale price¥188,000
[12559903] 2.991ct Brazilian Imperial Topaz Loose Stone
Sale price¥158,000
![[On sale from 10 PM on Saturday, August 16th] Limited to 30 units: "PSYCHO-PASS: PROVIDENCE" x KARATZ collaboration pure gold (24K) coin](http://store.karatz.jp/cdn/shop/files/d50548f340954dfa68c955fa4e8d624e_45c8b09b-bbac-4609-930b-5e9717a1d290.jpg?v=1754458579&width=4500)
Limited to 200 copies: SoftBank Hawks 20th Anniversary "Pure Gold Oval"
Sale priceFrom ¥398,000
![[On sale from 10 PM on Saturday, August 16th] Limited to 30 units: "PSYCHO-PASS: PROVIDENCE" x KARATZ collaboration pure platinum (PT999) coin](http://store.karatz.jp/cdn/shop/files/da05213790112f80db25136f28d88f54_25aa325c-77c2-4237-8d0a-57b52ffb00ee.jpg?v=1754458456&width=4500)
Brazilian Paraiba Tourmaline Ring and Half Eternity Ring Set (1.2mm)
Sale price¥188,000
Tanzanite 2.726ct loose
Sale price¥110,000
Colombian oil-free emerald 0.535ct loose Japanese-German edition
Sale price¥248,000
Paraiba tourmaline from Mozambique 1.481ct loose (CuO:0.3%, MnO:4.3%)
Sale price¥158,000
American Benitoite 0.296ct loose stone
Sale price¥148,000
Brazilian Unheated Bicolor Paraiba Tourmaline 0.105ct Loose GIA
Sale price¥198,000
Royal Blue Sapphire 2.220ct Loose Stone AIGS
Sale price¥458,000
Phosphophyllite rough stone (59.5 x 35.9 x 36 mm)
Sale price¥298,000
Brazilian bicolor tourmaline 13.927ct loose stone
Sale price¥198,000
Bulgarian green sphalerite 1.052ct loose Japanese-German edition
Sale price¥128,000
Indonesian Parasitic Peridot Cat's Eye 0.797ct Loose Stone
Sale price¥268,000
Russian Demantoid Garnet (Horsetail certified) 4.6mm/0.464ct loose stone
Sale price¥128,000
American oil-free red beryl 0.21ct loose GIA
Sale price¥188,000
Myanmar Musgravite 0.351ct Loose Stone Japan-Germany
Sale price¥188,000
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.