Tanzania Bicolor Pink Zoisite 4.037ct Rough Stone
Sale price¥12,800
3.324ct Tanzanian Purple Zoisite Rough Stone
Sale price¥6,980
Namibian Dioptase 0.134ct Loose Stone, Japan-Germany Mirror
Sale price¥59,800
Almandine garnet 2.421ct loose
Sale price¥18,800
Congo Carolite 6.2mm/1.481ct Loose Stone Japan-Germany Scale
Sale price¥29,800
YAG (Yttrium Aluminum Garnet) 7mm/1.686ct Loose Stone
Sale price¥12,800
Mexican Cantera Opal 3.297ct Loose
Sale price¥29,800
Italian Leucite 0.374ct loose stone (play of color)
Sale price¥14,800
Mexican Cantera Opal 20.655ct Loose
Sale price¥19,800
Vietnam Aquamarine 1.309ct Loose Stone
Sale price¥12,800
Spanish Andalusite 5.7mm/0.706ct loose stone
Sale price¥9,800
Mozambique Aquamarine 4.9mm/0.463ct Loose Stone
Sale price¥9,800
Tanzania Bicolor Zoisite 0.357ct Loose Stone
Sale price¥6,980
Tanzania Bicolor Zoisite 4mm/0.305ct Loose Stone
Sale price¥6,980
Tanzania Bicolor Zoisite 0.278ct Loose Stone
Sale price¥4,980
South African Rhodochrosite 0.990ct Loose Stone by Nikkei
Sale price¥128,000
Brazilian Yellow Beryl 11.411ct Loose Stone, Japan-Germany Exchange
Sale price¥25,800
Brazilian Tourmaline (untreated) 5.120ct loose stone
Sale price¥39,800
Sri Lankan Moonstone 0.561ct Loose
Sale price¥6,980
Sri Lankan Moonstone 1.959ct Loose
Sale price¥12,800
Tanzanite from Tanzania 0.466ct loose stone
Sale price¥8,800
Tanzanite from Tanzania 0.491ct loose stone
Sale price¥8,800
Brazilian Flower Rutile in Quartz 3.312ct Loose Stone
Sale price¥15,800
Synthetic Alexandrite 0.841ct loose stone
Sale price¥15,800
Synthetic Alexandrite 0.578ct loose stone
Sale price¥12,800
Green Fluorite 38.074ct Loose
Sale price¥158,000
Oregon Sunstone from the United States 1.132ct loose stone
Sale price¥15,800
Oregon Sunstone from the United States 0.292ct loose stone
Sale price¥8,800
Brazilian copper rutilated quartz 1.334ct loose stone
Sale price¥9,800
Amazon Green Opal 0.285ct Loose (Faceted Cut)
Sale price¥6,980
Amazonian green opal 0.517ct loose stone (faceted cut)
Sale price¥8,800
Amazon Green Opal 0.814ct Loose (Faceted Cut)
Sale price¥8,800
Brazilian pink tourmaline 1.458ct loose stone
Sale price¥39,800
Sri Lankan glass body (sapphire crystal) 10.140ct rough stone
Sale price¥29,800
Sri Lankan glass body (sapphire crystal) 7.983ct rough stone
Sale price¥29,800
Brazilian Euclase 0.224ct Loose Stone (Bicolor Euclase)
Sale price¥18,800
Flower rutilated quartz 0.955ct loose stone
Sale price¥9,800
Brazilian rutilated quartz (rutilated quartz) 8.247ct loose stone
Sale price¥14,800
Zimbabwean Blue Apatite (UV type) 1.056ct loose stone
Sale price¥15,800
Russian rough diamond (sawable) 0.125ct loose
Sale price¥29,800
Tanzania Purple Zoisite Rough Stone 1.160ct
Sale price¥8,800
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.