Sa line

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

Unheated silky pink sapphire from Vietnam 0.202ct loose Sale price¥6,980

Bulgarian green sphalerite 9.2mm/3.608ct loose Japanese-German edition Sale price¥398,000

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

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

Madagascar Purple Sapphire 4.2mm/0.418ct Loose Sale price¥19,800

Unheated Vietnamese Silky Pink Sapphire 0.291ct Loose Stone Sale price¥12,800

Zimbabwean sphene 7.0mm/1.661ct loose stone Sale price¥59,800

Blue Sapphire 5.0mm/0.552ct Loose Stone Sale price¥18,800

Zimbabwean sphene, 2.067ct loose Sale price¥59,800

Zimbabwean Sphene 2.520ct Loose Gemstone Sale price¥59,800

0.257ct Unheated Silky Pink Sapphire from Vietnam Sale price¥12,800

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

Brazilian Santa Maria Aquamarine 0.524ct Loose Stone Sale price¥55,800

Oregon Sunstone from the United States, 5.0mm/0.520ct loose stone Sale price¥15,800

Sri Lankan bicolor sapphire 0.586ct loose stone Sale price¥39,800

Sphene from Madagascar 0.498ct loose Sale price¥6,980

Cambodian Blue Zircon 0.205ct Loose Sale price¥3,980

Cambodian Blue Zircon 0.204ct Loose Sale price¥3,980

Cambodian Blue Zircon 0.221ct Loose Sale price¥3,980

Cambodian Blue Zircon 0.609ct Loose Sale price¥5,980

Myanmar color change zircon 0.697ct loose stone Sale price¥39,800

Myanmar Color Change Zircon 5.3mm/1.043ct Loose Stone Sale price¥69,800

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

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

Mint green sapphire 0.348ct loose Sale price¥9,800

Bicolor sapphire from Madagascar 0.252ct loose Sale price¥9,800

Bicolor sapphire from Madagascar 0.265ct loose Sale price¥16,800

Bicolor sapphire from Madagascar 0.198ct loose Sale price¥7,980

Sphene from Madagascar 1.476ct loose Sale price¥18,800

Bicolor Zoisite 1.210ct loose Sale price¥15,800

Unheated silky pink sapphire from Vietnam 0.247ct loose Sale price¥8,800

Tanzanian orange zircon 3.804ct loose Sale price¥35,800

Sphene from Madagascar 1.853ct loose Sale price¥24,800

Sri Lankan Zircon Cat's Eye 23.767ct Loose Sale price¥398,000

Sri Lankan Sinhalite 0.434ct Loose Stone Sale price¥8,800

Sinhalite from Sri Lanka 0.456ct loose stone Sale price¥9,800

[12/7 22:00] Tanzanian Zoisite 1.312ct Loose Stone Sale price¥18,800

Sri Lankan Yellow Sapphire 0.343ct Loose Sale price¥12,800

Bicolor Zoisite 0.581ct loose Sale price¥12,800

Spanish bicolor sphalerite 6.230ct loose Sale price¥69,800

Madagascar sphene 6.0mm/0.868ct loose stone Sale price¥49,800

1.689ct loose teal blue sapphire Sale price¥98,000

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

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

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

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.