pear shape

Colombian pyrite in emerald 6.415ct loose stone Sale price¥298,000

モザンビーク産エルバイトトルマリン 1.371ctルース（CuO:0.2%,MnO:2.6%）

Elbaite tourmaline from Mozambique 1.371ct loose stone (CuO: 0.2%, MnO: 2.6%) Sale price¥59,800

Tanzanian Lavender Tanzanite 0.498ct Loose Stone Sale price¥14,800

Tanzanian Lavender Tanzanite 0.382ct Loose Stone Sale price¥12,800

Tanzanian Lavender Tanzanite 0.558ct Loose Stone Sale price¥12,800

Tanzanian bicolor tanzanite 0.573ct loose stone Sale price¥15,800

Tanzanian Lavender Tanzanite 0.577ct Loose Stone Sale price¥15,800

Oregon Sunstone from the United States 0.736ct loose stone Sale price¥8,800

Tanzanite from Tanzania 0.245ct loose stone Sale price¥9,800

Tanzania Bicolor Zoisite 0.295ct Loose Stone Sale price¥8,800

Tanzanite from Tanzania 0.385ct loose stone Sale price¥9,800

Tanzania Bicolor Zoisite 0.286ct Loose Stone Sale price¥8,800

非加熱ブラジル産パライバトルマリン 0.060ctルース（CuO:1.6%、MnO:2.3%）

Unheated Brazilian Paraiba Tourmaline 0.060ct loose stone (CuO: 1.6%, MnO: 2.3%) Sale price¥59,800

非加熱ブラジル産パライバトルマリン 0.068ctルース（CuO:1.7%、MnO:2.4%）

Unheated Brazilian Paraiba Tourmaline 0.068ct loose stone (CuO: 1.7%, MnO: 2.4%) Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.053ct loose stone (CuO: 1.4%, MnO: 3.1%) Sale price¥62,800

Paraiba Tourmaline from Mozambique 0.360ct loose stone Sale price¥18,800

American Red Beryl 0.147ct Loose Sale price¥39,800

非加熱ブラジル産パライバトルマリン 0.065ctルース（CuO:1.6%、MnO:2.4%）

Unheated Brazilian Paraiba Tourmaline 0.065ct loose stone (CuO: 1.6%, MnO: 2.4%) Sale price¥69,800

[Staff Selection] Brazilian Green Tourmaline 0.475ct Loose (Semi-Custom Made Set) Sale price¥47,800

Unheated Brazilian Paraiba Tourmaline 0.072ct loose stone (CuO: 1.8%, MnO: 2.3%) Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.069ct loose stone (CuO: 2.1%, MnO: 2.1%) Sale price¥88,800

Unheated Brazilian Paraiba Tourmaline 0.052ct loose stone (CuO: 2.0%, MnO: 2.2%) Sale price¥55,800

非加熱ブラジル産パライバトルマリン 0.051ctルース（CuO:1.9%、MnO:2.5%）

Unheated Brazilian Paraiba Tourmaline 0.051ct loose stone (CuO: 1.9%, MnO: 2.5%) Sale price¥55,800

Andesine Labradorite (also known as Rainbow Moonstone) 1.373ct loose stone Sale price¥12,800

Unheated Brazilian Paraiba Tourmaline 0.081ct loose stone (CuO: 2.1%, MnO: 2.3%) Sale price¥98,000

Unheated Brazilian Paraiba Tourmaline 0.088ct loose stone (CuO: 1.9%, MnO: 2.3%) Sale price¥98,000

Unheated Brazilian Paraiba Tourmaline 0.059ct loose stone (CuO: 1.4%, MnO: 2.7%) Sale price¥63,800

Unheated Brazilian Paraiba Tourmaline 0.065ct loose stone (CuO: 2.0%, MnO: 2.4%) Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.066ct loose stone (CuO: 1.5%, MnO: 2.2%) Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.063ct loose stone (CuO: 1.8%, MnO: 2.4%) Sale price¥75,800

Unheated Brazilian Paraiba Tourmaline 0.061ct loose stone (CuO: 1.7%, MnO: 2.2%) Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.055ct loose stone (CuO: 1.9%, MnO: 2.2%) Sale price¥59,800

Unheated Brazilian Paraiba Tourmaline 0.066ct loose stone (CuO: 1.7%, MnO: 2.4%) Sale price¥79,800

Unheated Brazilian Paraiba Tourmaline 0.056ct loose stone (CuO: 1.7%, MnO: 2.3%) Sale price¥59,800

Unheated Brazilian Paraiba Tourmaline 0.062ct loose stone (CuO: 1.7%, MnO: 2.5%) Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.058ct loose stone (CuO: 2.0%, MnO: 2.2%) Sale price¥59,800

Unheated Brazilian Paraiba Tourmaline 0.056ct loose stone (CuO: 2.1%, MnO: 2.2%) Sale price¥69,800

Unheated Brazilian Paraiba Tourmaline 0.057ct loose stone (CuO: 1.6%, MnO: 2.4%) Sale price¥69,800

Australian Rainbow Lattice Sunstone 0.463ct Loose Stone Sale price¥5,980

Tanzanian Kornerupine 0.356ct loose stone Sale price¥49,800

Paraiba tourmaline from Brazil 0.057ct loose Sale price¥22,800

Paraiba tourmaline from Brazil 0.049ct loose Sale price¥19,800

Greenland sapphire 0.592ct loose stone Sale price¥24,800

Tanzania color change spinel 0.319ct loose stone Sale price¥29,800

Sphene 0.503ct loose stone Sale price¥8,800

Tanzanian Chrome Tourmaline 0.753ct Loose Stone Sale price¥6,980

アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.635ctルース

Indian Andesine Labradorite (also known as Rainbow Moonstone) 0.635ct loose stone Sale price¥18,800

Paraiba tourmaline from Mozambique 1.581ct loose stone (CuO: 0.5%, MnO: 1.0%) Sale price¥128,000

KARATZ Custom Made

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.

KARATZ・Five Commitments

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.