Vertical: Above 10.0mm

Congo Cobalt Calcite 1.439ct Loose Stone Sale price¥18,800

Australian Iron Opal 17.439ct Loose Sale price¥18,800

Zambian bicolor tourmaline 4.142ct loose stone Sale price¥98,000

Colombian pyrite emerald 8.044ct loose stone Sale price¥188,000

Kazakhstan Golden Hill Turquoise 2.314ct Loose Stone Sale price¥7,980

Tanzanian Bicolor Grossular Garnet 2.997ct Loose Stone Sale price¥69,800

9.214ct Loose Kunzite from Afghanistan Sale price¥45,800

3.583ct Australian Black Opal Loose Stone (Double Sided) Sale price¥29,800

Kunzite from Afghanistan 23.634ct loose stone Sale price¥98,000

Sri Lankan Twin Star Sapphire 5.225ct Loose Sale price¥98,000

Sri Lankan triple star sapphire 1.743ct loose stone Sale price¥128,000

Sri Lankan Twin Star Sapphire 3.928ct Loose Sale price¥128,000

Brazilian Pyrite in Quartz 4.153ct Loose Stone Sale price¥11,000

Brazilian Pyrite in Quartz 6.992ct Loose Stone Sale price¥18,800

Canadian Ammolite 17.043ct Loose Stone Sale price¥49,800

Mexican Fire Agate 14.193ct Loose Stone Sale price¥69,800

Mexican Fire Agate 10.683ct Loose Stone Sale price¥59,800

[12/7 22:00] Brazilian Dumortierite in Quartz 16.250ct Loose Stone Sale price¥9,800

Blue beryl (Mashish beryl) 3.268ct loose stone Sale price¥25,800

[12/6 22:00] Mexican Fire Agate 17.936ct Loose Stone Sale price¥49,800

Sri Lankan star sapphire 12.679ct loose Sale price¥158,000

Sri Lankan star sapphire 5.066ct loose Sale price¥69,800

Australian black opal 2.736ct loose Sale price¥98,000

Sri Lankan star sapphire 3.821ct loose Sale price¥79,800

Sri Lankan star sapphire 11.342ct loose Sale price¥69,800

Mexican Cantera Opal 8.432ct Loose Sale price¥39,800

Mexican Cantera Opal 9.166ct Loose Sale price¥69,800

2.275ct Australian Black Opal Loose Stone (Double Sided) Sale price¥59,800

Brazilian rose quartz 4.019ct loose stone Sale price¥11,000

Colombian emerald rough stone 7.924ct Sale price¥9,800

Oregon Sunstone from the United States, 4.678ct loose stone Sale price¥69,800

Brazilian bicolor tourmaline 4.497ct loose stone Sale price¥69,800

Brazilian Yellow Beryl 9.747ct Loose Stone Sale price¥98,000

Australian Prehnite 1.691ct loose stone Sale price¥9,800

Kunzite from Afghanistan 3.973ct loose stone Sale price¥12,800

Tanzanian Almandine Garnet 11.0mm/6.787ct Loose Stone Sale price¥49,800

Tanzanian Almandine Garnet 10mm/6.196ct Loose Stone Sale price¥29,800

Mozambique Rhodolite Garnet 3.662ct Loose Stone Sale price¥25,800

Tibetan Andesine 2.769ct Loose Stone (Pixel Cut) Sale price¥9,800

Brazilian Swiss Blue Topaz 13.287ct Loose Stone Sale price¥18,800

Illusion Bicolor Tourmaline 3.202ct Loose Stone Sale price¥69,800

Australian boulder opal 3.122ct loose stone Sale price¥29,800

Mexican Hyalite Opal 1.420ct Loose Sale price¥18,800

Brazilian pink tourmaline 2.765ct loose stone Sale price¥69,800

Colombian bicolor fluorite 3.209ct loose stone Sale price¥18,800

Australian Prehnite 3.751ct loose stone Sale price¥9,800

Brazilian pink tourmaline 1.515ct loose stone Sale price¥98,000

Brazilian Elestial Amethyst 1.586ct Loose Stone Sale price¥8,800

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.