Made in the USA

[On sale 7/12 at 10 PM] US Oregon Sunstone 7.1mm/1.397ct Loose Stone Sale price¥39,800

[On sale July 11th at 10 PM JST] USA Oregon Sunstone 10.8mm/4.864ct Loose Gemstone Sale price¥98,000

[On sale July 10th at 10 PM] US Oregon Sunstone 8.1mm/1.840ct Loose Sale price¥39,800

[On sale July 10th, 10 PM JST] Anthill Garnet from USA (round cut, approx. 3mm) - Only 3 stones left! (Multiple purchase discount available) Sale price¥3,980

Montana Agate 9.528ct Loose Sale price¥8,800

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

American Herkimer Diamond (Rock Crystal) 5.5mm/0.528ct Loose Sale price¥8,800

[Updated 12552163] Benitoite 0.099ct loose stone Sale price¥29,800

[Sale on 6/25 at 10 PM] US Scheelite 2.666ct Loose Gemstone with Certificate Sale price¥15,800

[Sales start June 25th at 10 PM JST] American Scheelite 1.943ct Loose Stone with Certificate Sale price¥12,800

American Red Beryl 0.147ct Loose Sale price¥35,800

American Red Beryl 0.132ct Loose Sale price¥33,800

American red beryl 0.143ct loose Sale price¥35,800

American red beryl 0.160ct loose Sale price¥89,800

American Peridot 0.339ct Loose Stone Sale price¥6,980

American Peridot 0.528ct Loose Stone Sale price¥8,800

[On sale May 4th, 10 PM JST] Bicolor Benitoite from USA, 0.624 ct loose stone with鑑別書 Sale price¥98,000

Oregon Sunstone 0.272ct Loose Sale price¥6,980

Benitoite 0.231ct loose Sale price¥220,000

Benitoite 0.286ct loose Sale price¥258,000

Benitoite 0.272ct loose stone (emerald cut) Sale price¥248,000

Oregon Sunstone 0.575ct loose Sale price¥9,800

Loose 2.120ct Oregon Sunstone from the USA Sale price¥18,800

Oregon Sunstone from the United States 0.941ct loose stone Sale price¥12,800

0.904ct Datolite, USA (Westfield, Manchester) Loose, with Japan-Germany certification Sale price¥29,800

Benitoite from the USA, 3.4mm/0.175ct loose Sale price¥98,000

American Benitoite 0.242ct Loose Sale price¥158,000

Oregon Sunstone 0.217ct loose Sale price¥4,980

Oregon Sunstone 0.226ct loose Sale price¥4,980

Oregon Sunstone 8.256ct rough stone Sale price¥9,800

American Oregon Sunstone 7.0mm/1.494ct Loose Sale price¥35,800

Oregon Sunstone from the United States, 6.1mm/0.820ct loose stone Sale price¥16,800

USA-origin Oregon Sunstone, 7.0mm/1.356ct loose Sale price¥35,800

American red beryl 0.184ct loose Sale price¥39,800

Montana Sapphire 0.515ct loose (bicolor sapphire) Sale price¥15,800

Oregon Sunstone from the United States, 7.0mm/1.260ct loose stone Sale price¥12,800

Oregon Sunstone from USA 7.1mm/1.308ct Loose Stone Sale price¥19,800

American Anthill Garnet 4.0mm/0.359ct Loose Sale price¥12,800

Ant Hill Garnet from the USA, 4.0mm/0.332ct, loose Sale price¥11,000

US Peridot 0.632ct Loose Stone Sale price¥9,800

American Peridot 0.643ct Loose Stone Sale price¥12,800

Benitoite from the USA, 0.064ct loose Sale price¥29,800

1.362ct loose Oregon sunstone from the United States Sale price¥29,800

US-sourced Oregon Sunstone 0.428ct Loose Sale price¥18,800

American oil-free red beryl 2.6mm/0.050ct loose GIA Sale price¥79,800

Oregon Sunstone 0.846ct loose Sale price¥7,980

Loose 0.498ct 5.0mm Oregon Sunstone from the USA Sale price¥15,800

Loose Oregon Sunstone from the USA, 0.318ct Sale price¥6,980

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.