Spanish Sphalerite 5.6mm/0.841ct loose stone
Sale price¥12,800
Spanish Sphalerite 12.5mm/9.860ct Loose Stone
Sale price¥98,000
Orange spinel 0.225ct loose stone
Sale price¥12,800
Ethiopian Sunstone 1.045ct Loose
Sale price¥15,800
Ethiopian Sunstone 0.661ct Loose
Sale price¥9,800
Cambodian Zircon 1.547ct Loose Stone
Sale price¥22,800
Brazilian Green Spodumene 10mm/4.505ct Loose Stone
Sale price¥19,800
Oregon Sunstone from the United States 1.951ct loose stone
Sale price¥12,800
Sri Lankan bicolor sapphire 1.020ct loose stone
Sale price¥59,800
Bulgarian green sphalerite 1.052ct loose Japanese-German edition
Sale price¥128,000
Bicolor Sapphire 5.640ct Loose Stone with Certificate
Sale price¥98,000
Namibian Jeremejevite 0.055ct loose stone
Sale price¥5,980
Namibian Jeremejevite 2.8mm/0.094ct loose stone
Sale price¥5,980
Namibian Jeremejevite 0.257ct loose stone
Sale price¥39,800
Namibian Jeremejevite 0.171ct loose stone
Sale price¥39,800
Namibian Jeremejevite 0.127ct loose stone
Sale price¥29,800
Sri Lankan Cat's Eye Sapphire 2.177ct Loose
Sale price¥98,000
Sri Lankan saffron 0.121ct loose stone
Sale price¥18,800
Madagascar Purple Sapphire 4.5mm/0.393ct Loose Stone
Sale price¥18,800
Madagascar Purple Sapphire 4.5mm/0.435ct Loose Stone
Sale price¥18,800
Brazilian Santa Maria Aquamarine 0.968ct loose stone
Sale price¥69,800
Sri Lankan zircon 3.614ct loose stone
Sale price¥29,800
Myanmar color change zircon 0.421ct loose stone
Sale price¥39,800
Myanmar color change zircon 0.720ct loose stone
Sale price¥69,800
Afghanistan Lazurite in Sodalite 2.387ct Loose Stone
Sale price¥39,800
Afghanistan Lazurite in Sodalite 0.581ct Loose Stone
Sale price¥18,800
Oregon Sunstone from the United States 0.605ct loose stone
Sale price¥8,800
Spanish Sphalerite 4.445ct loose stone
Sale price¥98,000
Montana Sapphire 4mm/0.330ct Loose (Yellow Sapphire)
Sale price¥7,980
Oregon Sunstone from the United States 1.930ct loose stone
Sale price¥18,800
Sri Lankan Yellow Sapphire 0.350ct Loose
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.474ct Loose
Sale price¥15,800
Sri Lankan Violet Spinel 0.592ct Loose
Sale price¥8,800
Sri Lankan bicolor sapphire 0.484ct loose stone
Sale price¥12,800
[Takeshi Yamamoto] Bicolor Smoky Quartz 10.674ct Loose Stone
Sale price¥39,800
Spanish Sphalerite 11mm/7.286ct loose stone
Sale price¥98,000
Kenyan gold sheen sapphire 2.3mm/0.079ct loose
Sale price¥6,980
Kenyan Gold Sheen Sapphire 2.2mm/0.080ct Loose
Sale price¥8,800
Kenyan gold sheen sapphire 2.4mm/0.086ct loose
Sale price¥9,800
Kenyan Gold Sheen Sapphire 2.4mm/0.092ct Loose Stone
Sale price¥8,800
Madagascar Bicolor Sapphire 0.626ct Loose
Sale price¥29,800
Myanmar Musgravite/Spinel 8.005ct Loose Stone Japan-Germany
Sale price¥98,000
Sri Lankan bicolor sapphire 0.304ct loose stone
Sale price¥14,800
Sri Lankan Purple Star Sapphire 2.461ct Loose
Sale price¥69,800
Cambodian Blue Zircon (Ratanakiri Blue) 6.771ct Loose
Sale price¥168,000
Sri Lankan Blue Sapphire 4.2mm/0.333ct Loose Stone
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.407ct Loose
Sale price¥15,800
Sri Lankan Yellow Sapphire 0.250ct Loose
Sale price¥12,800
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.
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.