Trilliant Cut
Colombian Euclase 2.015ct loose stone
Sale price¥18,800
Colombian Euclase 0.817ct loose stone
Sale price¥29,800
Brazilian Swiss Blue Topaz 0.889ct Loose Stone
Sale price¥8,800
Brazilian Swiss Blue Topaz 0.724ct Loose Stone
Sale price¥8,800
Namibian Jeremejevite 0.257ct loose stone
Sale price¥39,800
Indonesian Parasite Peridot (Parasitetic Peridot) 0.191ct Loose Stone
Sale price¥69,800
Oregon Sunstone from the United States 2.153ct loose stone
Sale price¥15,800
Brazilian Rubellite 2.588ct Loose Stone
Sale price¥69,800
Sri Lankan Yellow Sapphire 0.403ct Loose
Sale price¥15,800
Cassiterite 1.477ct loose stone (bicolor) with certificate
Sale price¥39,800
Brazilian Aquamarine 0.362ct Loose Stone
Sale price¥8,800
Spanish Andalusite 0.371ct loose stone
Sale price¥6,980
Brazilian Pink Tourmaline 0.361ct Loose Stone
Sale price¥9,800
Tanzanite from Tanzania 0.338ct loose stone
Sale price¥8,800
Brazilian White Chalcedony 0.925ct Loose Stone
Sale price¥5,980
Sri Lankan Blue Spinel 0.153ct Loose Stone
Sale price¥8,800
Tanzanite from Tanzania 0.580ct loose stone
Sale price¥14,800
Oregon Sunstone from the United States 1.198ct loose stone
Sale price¥8,800
Tanzania Bicolor Zoisite 2.603ct Loose Stone
Sale price¥88,800
Madagascar Andalusite 0.542ct loose stone
Sale price¥8,800
Synthetic Opal (Synthetic Black Opal) 0.723ct Loose
Sale price¥15,800
Sri Lankan Yellow Sapphire 0.253ct Loose
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.543ct Loose
Sale price¥29,800
Bekiri Blue Garnet (Color Change Garnet) from Madagascar 0.170ct Loose
Sale price¥18,800
Oregon Sunstone from the United States 0.941ct loose stone
Sale price¥29,800
Zimbabwean Apatite (UV type) 0.209ct loose stone
Sale price¥4,980
Madagascar Yellow Sapphire 0.863ct Loose
Sale price¥18,800
Cassiterite 1.658ct loose stone (bicolor cassiterite) Japan-Germany exchange
Sale price¥128,000
Brazilian Dolomite 4.070ct Loose Stone, Japan-Germany Mirror
Sale price¥98,000
Brazilian Dendritic Agate 1.679ct Loose Stone
Sale price¥8,800
Madagascar sapphire 0.448ct loose stone
Sale price¥19,800
Bekily Blue Garnet (color change garnet) 0.114ct loose
Sale price¥11,800
Bekiri Blue Garnet (Color Change Garnet) 0.106ct Loose Stone
Sale price¥9,800
Paraiba Tourmaline from Mozambique 0.171ct loose stone
Sale price¥8,980
Myanmar orange spinel 0.377ct loose stone
Sale price¥15,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.352ct Loose Stone
Sale price¥39,800
Brazilian Paraiba Tourmaline 0.062ct loose stone (CuO: 2.2%, MnO: 4.4%)
Sale price¥29,800
Benitoite 0.154ct loose
Sale price¥118,000
Bicolor Benitoite 0.157ct loose stone
Sale price¥22,800
Mozambique Pink Sapphire 0.276ct Loose (Hot Pink Sapphire)
Sale price¥13,800
Bicolor Paraiba tourmaline 2.477ct loose DGL version
Sale price¥228,000
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.