Made in the USA

1 American Herkimer Diamond (rock crystal) 💎 (child-bearing type)《Multiple purchase discount available》 Sale price¥2,980

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Oregon Sunstone from the USA, 8.1mm/1.893ct, loose

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0.135 ct. loose American Benitoite (Peach Benitoite), with certificate

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【Sakura Shape】Oregon Sunstone 1.174ct Loose

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Oregon Sunstone from the United States, 7.2mm/1.334ct loose stone

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Oregon Sunstone from USA 7.1mm/1.366ct Loose

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American Red Beryl 0.120ct Loose

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Montana Sapphire 0.235ct loose (yellow sapphire)

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Montana Sapphire 0.458ct Loose (Bi-Color Sapphire)

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Montana Sapphire 0.416ct Loose (Bi-Color Sapphire)

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Montana Sapphire 0.561ct loose (bicolor sapphire)

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Montana Sapphire 0.443ct loose (green sapphire)

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American Neptunite 0.207ct Loose Stone with Certificate of Authenticity

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0.256ct Neptunite from the USA, with a certificate

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American Neptunite 0.290ct Loose Stone with Certificate of Authenticity

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Datolite from the USA, 0.592ct Loose Stone (Westfield, Manchester)

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[Authenticity Check] American Bicolor Benitoite 0.282ct Loose Stone

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0.085ct loose, non-oil red beryl from the United States, GIA

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Oregon Sunstone from the United States, 6.0mm/0.793ct loose stone

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Oregon Sunstone from the United States, 7.0mm/1.169ct loose stone

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1.273ct loose Oregon sunstone from the United States

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Oregon Sunstone from USA 7.1mm / 1.290ct Loose

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Oregon Sunstone from the USA, 1.325ct loose

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1.362ct loose Oregon sunstone from the United States

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2.418ct loose Oregon sunstone from the United States

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U.S. Anthill Garnet 4.0mm/0.370ct Loose

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18K Yellow Gold American Benitoite 0.342ct Brazilian Paraiba Tourmaline Ring

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Pt950 US Benitote 0.17ct Pink Diamond Ring

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USA origin Oregon Sunstone 0.472ct Loose

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Pt950 American Benitoite 0.09ct Peach Benitoite Pinky Ring

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[Sakura In-Cut] Oregon Sunstone from the United States, 6.0mm/0.638ct Loose

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Oregon Sunstone from the United States, 8.338ct loose stone

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[Sakura Shape] Oregon Sunstone from the United States, 1.224ct Loose

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U.S. Red Beryl 3.2mm/0.111ct Loose Stone

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U.S. Red Beryl 2.2mm/0.047ct Loose

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USA Oregon Sunstone 5.0mm/0.443ct Loose

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Anthill garnet from the USA (with forsterite) 0.578ct loose

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Unmounted American Anthill Garnet, 4.0mm/0.269ct

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American Anthill Garnet 5.0mm/0.641ct Loose

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USA Ant Hill Garnet 4.0mm/0.277ct Loose Stone

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US Oregon Sunstone, 1.640 ct, Loose

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US Oregon Sunstone, 1.640 ct, Loose

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1.676ct loose Oregon sunstone from the United States

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USA Oregon Sunstone 2.160ct Loose

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.