Oval Cut

Tanzanian Rhodolite Garnet 1.194ct Loose Stone Sale price¥15,800

Tanzanian Rhodolite Garnet 0.733ct Loose Stone Sale price¥9,800

0.796ct Loose Bicolor Grossular Garnet from Tanzania Sale price¥39,800

Tanzanian Zoisite 0.956ct Loose Stone Sale price¥19,800

【Available 9/7 at 10 PM】 Sri Lankan Moonstone 1.578ct Loose Stone Sale price¥12,800

0.227 ct Loose Pink Spinel from Mozambique Sale price¥12,800

Colombian emerald 0.159ct loose stone Sale price¥47,800

Paraiba tourmaline from Brazil 0.162ct loose Sale price¥69,800

Tanzanite from Tanzania 0.889ct loose stone Sale price¥18,800

Tanzanian Kornerupine 0.132ct Loose Stone Sale price¥9,800

Cambodian Blue Zircon 0.440ct Loose Sale price¥9,800

Afghan Diaspore 0.239ct Loose Sale price¥15,800

Oregon Sunstone from the USA, 2.128 ct loose stone Sale price¥22,800

1.519ct loose Oregon sunstone from the United States Sale price¥15,800

Mali Garnet from the Republic of Mali (Grossular/Andradite Garnet) 0.353ct Loose Sale price¥8,800

Tanzanian Green Zoisite 0.354ct Loose Stone Sale price¥12,800

Green zoisite from Tanzania, 0.262 ct loose Sale price¥9,800

Brazilian unheated pink imperial topaz (sherry pink) 2.221ct loose stone with certificate of authenticity Sale price¥158,000

Sri Lankan Bicolor Sapphire 0.607ct Loose Stone Sale price¥15,800

Brazilian green tourmaline 1.233 ct loose stone Sale price¥69,800

Colombian emerald 0.105ct loose Sale price¥31,800

Brazilian Blue Tourmaline 0.827ct Loose Stone Sale price¥19,800

Sri Lankan Blue Spinel 1.218ct Loose Stone with Certificate of Authenticity Sale price¥45,800

Parasitic Peridot 0.241ct Loose Stone, Japan-Germany Scale Sale price¥98,000

Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.189ct Loose Stone Sale price¥18,800

Madagascar Bekily Blue Garnet (Color Change Garnet) 0.221ct Loose Stone Sale price¥22,800

[12/9 22:00] Brazilian Lavender Quartz (Scorolite) 0.994ct Loose Stone Sale price¥8,800

Kenyan Tsavorite 0.806ct Loose Stone Sale price¥39,800

[12/6 22:00] Tanzanian Green Zoisite 0.435ct Loose Stone Sale price¥12,800

Loose Tourmaline from Brazil, 0.270 ct Sale price¥5,980

Mexican Opal (Faceted) 0.261ct Loose (Contrarus Opal) Sale price¥12,800

0.542ct Loose Leuco Garnet from Myanmar, with certificate Sale price¥39,800

Brazil Indicolite Tourmaline 0.431ct Loose Gemstone with Certificate Sale price¥29,800

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

Greenland Ruby 0.253ct Loose Stone with Certificate Sale price¥49,800

Sri Lankan pink zircon 1.991ct loose stone Sale price¥29,800

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

2.594ct loose Oregon sunstone from the United States Sale price¥39,800

Oregon Sunstone from the United States, 0.530ct loose stone Sale price¥15,800

Madagascar Dumortierite (single crystal) 0.195ct loose stone Sale price¥89,800

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

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

Tanzanian Almandine Garnet 2.972ct Loose Stone Sale price¥18,800

Russian Demantoid Garnet 0.192ct Loose Stone Sale price¥79,800

Mozambique rubellite 0.814ct loose stone Sale price¥39,800

Sri Lankan blue sapphire 0.187ct loose stone Sale price¥29,800

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

Tanzanian Kornerupine 0.324ct Loose Stone Sale price¥29,800

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.