Cornflower blue sapphire 0.530ct loose stone
Sale price¥128,000
Tanzanite 2.726ct loose
Sale price¥110,000
Colombian oil-free emerald 0.535ct loose Japanese-German edition
Sale price¥248,000
![[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)
Brazilian Paraiba Tourmaline Ring and Half Eternity Ring Set (1.2mm)
Sale price¥188,000
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
Indonesian Parasitic Peridot Cat's Eye 0.489ct Loose Stone
Sale price¥158,000
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
Phosphophyllite from Bolivia 0.921ct loose stone by Nikkei
Sale price¥598,000
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
Brazilian cat's eye emerald 4.070ct loose stone
Sale price¥198,000
Myanmar Musgravite 0.214ct Loose Stone Nikko Kan
Sale price¥258,000
Burmese Ruby 3.725ct Loose GIA & Chuho
Sale price¥198,000
Brazilian Pink Euclase 1.259ct Loose Stone Japan-Germany
Sale price¥3,980,000
Brazilian Bicolor Tourmaline 4.554ct Ruth Japanese-German Edition
Sale price¥298,000
Cambodian Blue Zircon (Ratanakiri Blue) 6.771ct Loose
Sale price¥168,000
Russian Demantoid Garnet (Horsetail Recognized) 5.1mm/0.664ct Loose Stone
Sale price¥188,000
Unheated Color Change Blue Sapphire 1.450ct Loose GIT
Sale price¥158,000
Euclase from Colombia 5.223ct Ruth Japanese German edition
Sale price¥198,000
[On sale from 10pm on 5/4] Russian oil-free emerald 0.84ct loose GIA
Sale price¥248,000
Euclase from Colombia 2.443ct Ruth Japanese German edition
Sale price¥148,000
Pakistani bicolor sphene 3.980ct loose stone
Sale price¥188,000
Brazilian bicolor tourmaline 12.842ct loose
Sale price¥298,000
Russian demantoid garnet (horsetail recognized) 5.5mm/0.710ct loose
Sale price¥148,000
Russian demantoid garnet (horsetail recognized) 5.3mm/0.692ct loose
Sale price¥128,000
Pt950 Tanzanian Tanzanite 1.357ct Blue Zircon Pink Sapphire Ring
Sale price¥128,000
Cornflower Blue Sapphire 4.9mm/0.55ct Loose AIGS
Sale price¥110,000
Bicolor pink euclase from Brazil 0.310ct loose Japanese-German edition
Sale price¥128,000
K18PG Brazilian Paraiba Tourmaline 0.49ct Paraiba Tourmaline Ring GIA
Sale price¥198,000
Myanmar Podretteite 0.790ct loose stone
Sale price¥198,000
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.
業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。
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.