Brazilian Blue Tourmaline 0.650ct Loose
Sale price¥9,800
Tanzania Color Change Chrome Tourmaline 13.194ct Loose Stone Chuhokan
Sale price¥398,000
Namibian Jeremejevite 0.194ct loose stone by Nikkei
Sale price¥15,800
Diamond 3.0mm/0.123ct loose stone (D, VS2, octagonal cut)
Sale price¥28,800
Mexican Opal 1.639ct Loose (Contralus Opal)
Sale price¥29,800
Tibetan bicolor andesine 1.431ct loose stone
Sale price¥12,800
Italian Leucite 0.287ct loose stone (play of color)
Sale price¥9,800
Italian Leucite 0.321ct loose stone (play of color)
Sale price¥11,800
Tanzanian bicolor tanzanite 1.644ct rough and loose stone set of 2
Sale price¥8,800
Bicolor sapphire 2.040ct loose stone
Sale price¥59,800
![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)
"PSYCHO-PASS PROVIDENCE" x KARATZ collaboration character image double pendant
Sale priceFrom ¥25,800
[Takeshi Yamamoto] Bicolor fluorite 15.624ct loose stone
Sale price¥45,800
[Takeshi Yamamoto] Rose quartz 25.017ct loose stone
Sale price¥59,800
[Takeshi Yamamoto] Ametrine 20.856ct loose stone
Sale price¥98,000
[Takeshi Yamamoto] Rock crystal 78.580ct loose stone
Sale price¥98,000
Madagascar Blue Apatite 0.916ct Loose Stone
Sale price¥8,800
Myanmar spinel 4.0mm/0.263ct loose stone
Sale price¥7,980
Synthetic Opal (Synthetic Black Opal) 0.651ct Loose
Sale price¥15,800
Sri Lankan Yellow Sapphire 0.272ct Loose (Bicolor)
Sale price¥12,800
Blue beryl (Macis beryl) 3.5mm/0.152ct loose stone
Sale price¥8,800
Blue Beryl (Macisi Beryl) 3.6mm/0.176ct loose stone
Sale price¥8,800
Pt900/Pt850 Australian Black Opal 0.37ct Diamond 0.73ct Necklace
Sale price¥198,000
Montana Sapphire 3.7mm/0.272ct Loose Stone (Blue Sapphire)
Sale price¥9,800
YAG (Yttrium Aluminum Garnet) 7.0mm/1.772ct loose stone
Sale price¥9,800
Montana Sapphire (Blue Sapphire) 0.207ct Loose
Sale price¥6,980
Sri Lankan Chrysoberyl Cat's Eye 0.519ct Loose Stone
Sale price¥8,800
Myanmar pink spinel 0.344ct loose stone
Sale price¥8,800
Tanzanite from Tanzania 0.250ct loose stone
Sale price¥7,980
Tanzania Bicolor Zoisite 0.320ct Loose Stone
Sale price¥7,980
Tanzanite from Tanzania 0.321ct loose stone
Sale price¥6,980
Tanzanite from Tanzania 0.250ct loose stone
Sale price¥8,800
Ruby 0.284ct loose
Sale price¥15,800
Brazilian bicolor tourmaline 0.675ct loose stone
Sale price¥9,800
Mexican Yellow Opal 0.673ct Loose
Sale price¥8,800
Mexican Yellow Opal 0.428ct Loose
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.261ct Loose
Sale price¥12,800
Brazilian bicolor tourmaline 3.282ct loose
Sale price¥59,800
Additional charge for resizing: 1,500 yen
Sale price¥15,000
Additional charge for resizing: 1,500 yen
Sale price¥8,500
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.