Yellow Diamond 4.7mm/0.390ct Loose (LIGHT YELLOW, VVS1, 3Excellent H&C)
Sale price¥49,800
K18PG Brazilian color shift amethyst, hackmanite, pink sapphire ring
Sale price¥79,800
Tanzanian Sunstone (Illusion Sunstone) 0.381ct Loose Stone
Sale price¥7,980
American red beryl 0.080ct loose
Sale price¥39,800
Myanmar Leuco Garnet 0.504ct Loose Stone JTL Catalog
Sale price¥39,800
Namibian Jeremejevite 0.193ct loose stone JTL catalogue
Sale price¥98,000
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.189ct Loose Stone
Sale price¥16,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.192ct Loose Stone
Sale price¥13,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.272ct Loose Stone
Sale price¥19,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.272ct Loose Stone
Sale price¥19,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.179ct Loose Stone
Sale price¥12,800
Nigerian Morganite 0.419ct loose stone
Sale price¥9,800
Nigerian Morganite 0.544ct loose stone
Sale price¥11,000
Pakistani Veirinite 0.164ct loose stone with certificate
Sale price¥45,800
Zimbabwe bicolor euclase rough stone 0.356ct
Sale price¥29,800
Zimbabwe bicolor euclase rough stone 0.165ct
Sale price¥18,800
Brazilian Dumortierite in Quartz 3.490ct loose stone
Sale price¥18,800
Brazilian Dumortierite in Quartz 1.256ct loose stone
Sale price¥15,800
Madagascar Neon Blue Apatite 0.360ct Loose
Sale price¥9,800
Blue spinel 0.451ct loose stone
Sale price¥18,800
Parasite Peridot (Parasitetic Peridot) 0.172ct Loose Stone
Sale price¥98,000
Colombian Trapiche Emerald 1.343ct Loose
Sale price¥69,800
Myanmar bicolor podoretite 1.960ct loose stone
Sale price¥1,000,000
Malawi Bicolor Zircon 1.223ct Loose Stone
Sale price¥55,800
Sri Lankan Musgravite 0.389ct Loose Stone (Tubular Inclusions) Nikkei
Sale price¥398,000
![[Limited to 7 stones] Oregon Sunstone from the United States (cabochon cut, average 1.5ct) [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/collage_aaa7a0c3-17e0-460a-8609-f11fcce374ed.png?v=1741995367&width=2000)
Nigerian Morganite 0.862ct loose stone
Sale price¥17,800
[Dandelion Cut] Rhodolite Garnet 1.115ct {Collaboration} Loose Stone
Sale price¥29,800
Tanzanite from Tanzania 0.559ct loose stone
Sale price¥9,800
Tanzanite from Tanzania 0.479ct loose stone
Sale price¥7,980
Tanzanite from Tanzania 0.331ct loose stone
Sale price¥5,980
Tanzanite from Tanzania 0.734ct loose stone
Sale price¥12,800
Tanzanite from Tanzania 0.338ct loose stone
Sale price¥8,800
Ethiopian Sunstone 1.563ct Loose
Sale price¥9,800
Ethiopian Sunstone 5.1mm/0.468ct Loose
Sale price¥9,800
Brazilian bicolor tourmaline 4.291ct loose stone
Sale price¥55,800
Brazilian bicolor tourmaline 6.227ct loose stone
Sale price¥69,800
Illusion Pink Tourmaline (Iridescent Tourmaline) 5.308ct Loose Stone
Sale price¥69,800
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.
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.