Custom Cut
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 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
Brazilian copper rutilated quartz 1.262ct loose stone
Sale price¥6,980
Brazilian copper rutilated quartz 1.647ct loose stone
Sale price¥6,980
Synthetic Alexandrite 0.578ct loose stone
Sale price¥9,800
Brazilian Euclase 0.213ct loose stone (bicolor Euclase)
Sale price¥12,800
[Featured in 12563725] Sri Lankan Pink Sapphire 0.319ct Loose
Sale price¥29,800
【Sale starts 8/25 10 PM JST】Synthetic Rutile 0.344ct Loose Gemstone
Sale price¥8,800
[On sale August 25th, 10 PM] Ruby 0.168ct Loose Stone
Sale price¥11,800
[On sale August 25th at 10 PM] Ruby loose stone, 0.268ct
Sale price¥15,800
[Sale on August 27th at 10 PM] Synthetic Rutile 0.566ct Loose Stone
Sale price¥9,800
Brazilian Euclase (Bicolor Euclase) 0.302ct Loose Stone
Sale price¥45,800
[12552852] Citrine 2.734ct loose stone
Sale price¥22,800
[Lottery Sale 0628_08] Unheated Kashmir Sapphire 0.160ct Loose GIA
Sale price¥98,000
[Lottery Sale 0707_09] Unheated Burmese Sapphire 0.210ct Loose GIA
Sale price¥69,800
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.