Tanzanian bicolor sapphire 0.486ct loose stone
Sale price¥12,800
Madagascar Bicolor Sapphire 0.633ct Loose
Sale price¥39,800
Brazilian London Blue Topaz 1.281ct Loose
Sale price¥12,800
Brazilian bicolor tourmaline 1.056ct loose
Sale price¥12,800
Bicolor tourmaline 5.825ct loose
Sale price¥128,000
Prehnite 5.3mm/0.469ct loose
Sale price¥3,980
Prehnite 5.6mm/0.565ct loose
Sale price¥3,980
Parasite Peridot (Paracytic Peridot) 0.541ct Loose Japanese-German Edition
Sale price¥256,000
Hackmanite 0.520ct loose stone
Sale price¥18,800
Brazilian bicolor tourmaline 3.291ct loose
Sale price¥35,800
Brazilian bicolor tourmaline 3.569ct loose
Sale price¥35,800
Bicolor Benitoite 0.194ct loose (square cut)
Sale price¥128,000
Brazilian bicolor tourmaline 1.965ct loose stone
Sale price¥18,800
0.424ct Indian Chrysoberyl Loose Stone (Canary Yellow)
Sale price¥15,800
Brazilian blue topaz 5.5mm/0.754ct loose stone
Sale price¥5,980
American Benitoite 0.185ct Loose Stone
Sale price¥128,000
Australian boulder opal 1.457ct loose stone
Sale price¥9,800
Brazilian London Blue Topaz 0.415ct Loose Stone
Sale price¥6,980
Australian Prehnite 1.758ct loose stone
Sale price¥9,800
Sri Lankan Peristerite 0.272ct Loose Stone
Sale price¥11,000
[12552640] Unheated Brazilian Paraiba Tourmaline 0.073ct loose stone
Sale price¥49,800
[12552618] Unheated Brazilian Paraiba Tourmaline 0.063ct loose stone
Sale price¥49,800
[12547847 published] Bicolor tourmaline 0.398ct loose
Sale price¥8,800
Australian boulder opal 0.874ct loose
Sale price¥3,980
Australian boulder opal 1.156ct loose
Sale price¥3,980
Australian boulder opal 1.173ct loose
Sale price¥5,980
Brazilian Petalite 1.197ct Loose Stone
Sale price¥7,980
Australian Prehnite 0.707ct loose stone
Sale price¥6,980
[Rouge Cut] Brazilian Bicolor Tourmaline 0.578ct Loose
Sale price¥9,800
Australian boulder opal 1.868ct loose
Sale price¥18,800
Australian boulder opal 1.675ct loose
Sale price¥14,800
Australian boulder opal 28.880ct loose
Sale price¥59,800
Benitoite 0.095ct loose
Sale price¥18,800
Brazilian Paraiba tourmaline 0.275ct loose (CuO:1.5%.MnO:2.3%)
Sale price¥398,000
Prehnite 3.870ct loose
Sale price¥3,980
Playnight 3.085ct loose
Sale price¥3,980
Prehnite 3.874ct loose
Sale price¥3,980
Brazilian bicolor tourmaline 0.258ct loose stone
Sale price¥8,800
Brazilian Paraiba Tourmaline 0.039ct Loose Stone (CuO: 2.0%, MnO: 2.3%)
Sale price¥45,800
Australian boulder opal 9.120ct loose
Sale price¥98,000
Brazilian Swiss Blue Topaz 1.065ct Loose Stone
Sale price¥11,000
Brazilian Bicolor Beryl 0.556ct Loose Stone
Sale price¥29,800
Mexican Fire Opal 1.580ct Loose
Sale price¥25,800
Brazilian Blue Topaz Cat's Eye 2.631ct Loose Stone
Sale price¥9,800
Paraiba tourmaline from Mozambique 0.154ct loose stone
Sale price¥19,800
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.