Grandidierite from Madagascar 0.264ct loose stone
Sale price¥88,800
Madagascar Grandidierite 0.521ct loose stone
Sale price¥128,000
Grandidierite from Madagascar 0.169ct loose stone
Sale price¥15,800
0.097ct Grandidierite Loose Stone from Madagascar
Sale price¥29,800
Loose White Diamond 0.108ct (FANCY WHITE, I-1)
Sale price¥55,800
Madagascar Iolite 3.129ct loose stone
Sale price¥39,800
[Updated 12552163] Benitoite 0.099ct loose stone
Sale price¥34,800
Vietnam Aquamarine 0.585ct Loose
Sale price¥12,800
Vietnam Aquamarine 5.6mm/0.577ct Loose Stone
Sale price¥6,980
Aquamarine 0.568ct loose stone
Sale price¥5,980
Aquamarine 0.398ct loose stone
Sale price¥7,980
Aquamarine 0.327ct loose stone
Sale price¥9,800
Blue sapphire 4.1mm/0.332ct loose stone
Sale price¥25,800
Blue sapphire 3.9mm/0.260ct loose stone
Sale price¥8,800
Blue sapphire 0.466ct loose stone
Sale price¥12,800
Sri Lankan Blue Sapphire 4.2mm/0.333ct Loose Stone
Sale price¥12,800
Blue sapphire 0.295ct loose stone
Sale price¥7,980
Blue sapphire 0.291ct loose stone
Sale price¥18,800
Bloodshot Iolite Sunstone 2.121ct Loose
Sale price¥12,800
Brazilian unheated pink imperial topaz (sherry pink) 0.931ct loose stone
Sale price¥98,000
Unheated Brazilian Imperial Topaz (Sherry Color) 0.314ct Loose
Sale price¥22,800
Brazilian unheated particolor Paraiba tourmaline 0.84ct loose GIA
Sale price¥2,580,000
Brazilian rutilated quartz (rutilated quartz) 7.8mm/1.307ct loose stone
Sale price¥12,800
Brazilian rutilated quartz (rutile quartz) 12mm/6.709ct loose stone
Sale price¥9,800
Brazilian Limonite in Topaz 6.579ct loose stone (with rainbow)
Sale price¥18,800
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.