Tanzanian Blue Spinel 1.028ct Loose Stone
Sale price¥39,800
Pakistani Lazurite (Azurite) 0.123ct loose stone
Sale price¥59,800
Brazilian bicolor tourmaline 1.177ct loose stone
Sale price¥12,800
Brazilian bicolor tourmaline 0.763ct loose stone
Sale price¥7,980
Brazilian Pink Tourmaline 0.960ct Loose Stone
Sale price¥15,800
Colombian emerald 3.5mm/0.150ct loose stone
Sale price¥22,800
Brazilian rutilated quartz (rutile quartz) 12mm/7.140ct loose stone
Sale price¥9,800
Indian Moonstone 8.2mm/1.823ct Loose
Sale price¥14,800
Blue Beryl (Macisi Beryl) 3.6mm/0.176ct loose stone
Sale price¥8,800
Blue beryl (Macis beryl) 3.5mm/0.152ct loose stone
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.272ct Loose (Bicolor)
Sale price¥12,800
Synthetic Opal (Synthetic Black Opal) 0.651ct Loose
Sale price¥15,800
Synthetic Opal (Synthetic Black Opal) 0.723ct Loose
Sale price¥15,800
Myanmar spinel 4.0mm/0.263ct loose stone
Sale price¥7,980
Myanmar spinel 0.402ct loose stone
Sale price¥12,800
[Takeshi Yamamoto] Rock crystal 78.580ct loose stone
Sale price¥98,000
[Takeshi Yamamoto] Ametrine 20.856ct loose stone
Sale price¥98,000
[Takeshi Yamamoto] Rose quartz 25.017ct loose stone
Sale price¥59,800
[Takeshi Yamamoto] Bicolor fluorite 15.624ct loose stone
Sale price¥45,800
![Tanzanian Dravite rough stone 24.5 x 10.5 x 7.7 mm [Gemstone Encyclopedia]](http://store.karatz.jp/cdn/shop/files/P1010325_2e629dc7-2020-4b62-a17c-029286482b85.jpg?v=1731062614&width=4000)
[Rouge cut] Almandine garnet 2.476ct loose stone
Sale price¥9,800
[Sakura Shape] Mexican Opal 2.551ct Loose Patch
Sale price¥59,800
Bicolor sapphire 2.040ct loose stone
Sale price¥59,800
Sri Lankan bicolor sapphire 0.260ct loose stone
Sale price¥12,800
Tanzanian bicolor tanzanite 1.644ct rough and loose stone set of 2
Sale price¥8,800
Italian Leucite 0.321ct loose stone (play of color)
Sale price¥11,800
Italian Leucite 0.287ct loose stone (play of color)
Sale price¥9,800
Tibetan bicolor andesine 1.431ct loose stone
Sale price¥12,800
Mexican Opal 1.639ct Loose (Contralus Opal)
Sale price¥29,800
Namibian Jeremejevite 0.194ct loose stone by Nikkei
Sale price¥15,800
Tanzania Color Change Chrome Tourmaline 13.194ct Loose Stone Chuhokan
Sale price¥398,000
Brazilian bicolor tourmaline 1.953ct loose stone
Sale price¥18,800
Mexican Fire Opal (Faceted Cut) 0.352ct Loose
Sale price¥9,800
Mexican Fire Opal (Faceted) 6.1mm/0.450ct Loose
Sale price¥12,800
Mexican Opal (Faceted Cut) 0.640ct Loose
Sale price¥14,800
Mexican Opal (Faceted Cut) 1.052ct Loose
Sale price¥19,800
Spanish bicolor sphalerite 5.289ct loose stone
Sale price¥59,800
Spanish Sphalerite 6.494ct loose stone
Sale price¥69,800
Synthetic Opal (Synthetic Black Opal) 1.532ct Loose
Sale price¥15,800
Synthetic Opal (Synthetic Black Opal) 10.910ct Loose
Sale price¥69,800
Synthetic Opal (Synthetic Black Opal) 1.467ct Loose
Sale price¥12,800
Blue beryl (Macis beryl) 0.199ct loose stone
Sale price¥9,800
Spodumene 1.844ct loose stone
Sale price¥12,800
Mexican Cantera Opal 19.732ct Loose
Sale price¥24,800
Mexican Cantera Opal 10.927ct Loose
Sale price¥18,800
Madagascar Purple Sapphire 0.429ct Loose
Sale price¥12,800
Madagascar pink sapphire 0.335ct loose stone
Sale price¥14,800
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.