Custom Cut
[On sale 9/30 at 10 PM] Bolivian Ametrine 4.815ct Loose Stone
Sale price¥12,800
[10/2 10 PM Sale] Bolivian Ametrine 4.234ct Loose Stone
Sale price¥18,800
[Available 9/26 at 10 PM] Malawi Moonstone Loose Gemstone, 2.229ct
Sale price¥9,800
【Available 9/22, 10:00 PM】 Colombian Emerald 0.078ct Loose Gemstone
Sale price¥18,800
[On sale 9/21 at 22:00] Sri Lankan Green Zircon 0.403ct Loose Stone
Sale price¥5,980
Pakistani Oil in Quartz 0.328ct Loose Stone
Sale price¥7,980
Afghan Kunzite 0.799ct Loose Gemstone
Sale price¥6,980
Tanzanian Zoisite 1.000ct Loose Stone
Sale price¥18,800
Tanzania Bicolor Zoisite 0.645ct Loose Stone
Sale price¥11,800
YAG (Yttrium Aluminum Garnet) 6.5mm/1.551ct Loose Stone
Sale price¥15,800
Spanish bicolor sphalerite 3.504ct loose stone
Sale price¥35,800
1.953ct Bicolor Sphalerite from Spain
Sale price¥18,800
Nigerian Aventurine Aquamarine 0.471ct Loose Stone
Sale price¥6,980
Brazilian Sky Blue Topaz (untreated) 1.376ct loose stone
Sale price¥9,800
Brazilian Goshenite 0.771ct loose stone
Sale price¥6,980
[Available 9/4 at 10 PM] Ruby 0.411ct Loose Stone
Sale price¥18,800
【9/4 10:00 PM Sale】Ruby 0.200ct Loose Stone
Sale price¥12,800
[Available 9/4 at 10 PM] Ruby 0.141ct loose stone
Sale price¥9,800
【9/14 10:00 PM Release】 Sri Lankan Uva Moonstone 1.172ct Loose Stone
Sale price¥15,800
【Available 9/14 at 10 PM】 Sri Lankan Uva Moonstone 0.872ct Loose Stone
Sale price¥14,800
[Available 9/10, 10 PM] 0.837ct Sri Lankan Moonstone Loose Stone
Sale price¥12,800
【9/6 10PM On Sale】Pakistan Oil-in-Quartz 0.281ct Loose Gemstone
Sale price¥4,980
[9/7 22:00 Release] Pakistani Oil-in-Quartz 0.505ct Loose Stone
Sale price¥4,980
【9/7 10 PM Release】Indian Parrot Chrysoberyl 0.288ct Loose Stone
Sale price¥12,800
Brazilian copper rutilated quartz 1.334ct loose stone
Sale price¥8,800
Oregon Sunstone from the United States 0.292ct loose stone
Sale price¥6,980
Oregon Sunstone from the United States 1.132ct loose stone
Sale price¥12,800
South African Rhodochrosite 0.990ct Loose Stone by Nikkei
Sale price¥128,000
Tanzania Bicolor Zoisite 0.278ct Loose Stone
Sale price¥4,980
Tanzania Bicolor Zoisite 0.357ct Loose Stone
Sale price¥6,980
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.