Brazilian Alexandrite 0.135ct loose stone
Sale price¥35,800
South African diamond rough (sawable) 0.096ct rough (with trigon)
Sale price¥39,800
Diamond (cabochon cut) 0.247ct loose (VS-SI class equivalent)
Sale price¥39,800
Mexican Cantera Opal 1.842ct Loose
Sale price¥39,800
Mexican Cantera Opal 9.909ct Loose
Sale price¥39,800
Mexican Cantera Opal 7.275ct Loose
Sale price¥35,800
Mexican Cantera Opal 5.261ct Loose
Sale price¥49,800
Colombian Euclase 0.315ct loose stone
Sale price¥39,800
Alexandrite 0.201ct loose stone
Sale price¥39,800
South African diamond rough (sawable) 0.112ct rough
Sale price¥44,800
South African diamond rough (sawable) 0.091ct rough (trigon)
Sale price¥35,800
0.075 ct Loose Paraiba Tourmaline from Brazil (CuO: 1.7%, MnO: 1.9%)
Sale price¥45,800
Zimbabwean Euclase 0.063ct loose stone
Sale price¥39,800
Brazilian Limonite in Topaz 20.777ct loose stone
Sale price¥39,800
Russian Demantoid Garnet (Horsetail) 3.5mm/0.187ct Loose Stone
Sale price¥45,800
Colombian Trapiche Emerald 0.923ct Rough Stone
Sale price¥45,800
Ethiopian Opal 41.967ct Rough Stone
Sale price¥33,800
Brazilian Pink Tourmaline 1.799ct Loose Stone
Sale price¥35,800
South African Rhodochrosite 0.457ct loose stone
Sale price¥45,800
Diamond (cabochon cut) 0.233ct loose
Sale price¥39,800
Brazilian parti-color tourmaline 1.412ct loose stone
Sale price¥39,800
Australian black opal 4.528ct loose
Sale price¥39,800
Brazilian Euclase (Bicolor Euclase) 0.199ct Loose Stone
Sale price¥45,800
Brazilian Paraiba Tourmaline in Quartz 2.403ct loose stone
Sale price¥45,800
Brazilian Paraiba Tourmaline in Quartz 1.917ct loose stone
Sale price¥42,800
[Takeshi Yamamoto] Bicolor fluorite 15.624ct loose stone
Sale price¥45,800
Tanzanian Tanzanite 1.36ct Loose
Sale price¥49,800
Burmese Ruby 0.418ct Loose Stone Japan-Germany
Sale price¥35,800
Spanish Sphalerite 7mm/1.676ct loose stone
Sale price¥35,800
Australian Black Opal 0.386ct Loose Stone
Sale price¥39,800
Rhodochrosite from South Africa 4.2mm/0.409ct loose
Sale price¥39,800
Mozambique Rubellite 1.706ct Loose Stone
Sale price¥39,800
Brazilian Paraiba Tourmaline in Quartz 2.827ct loose stone
Sale price¥49,800
Brazilian Paraiba Tourmaline in Quartz 3.049ct loose stone
Sale price¥49,800
Kenyan Gold Sheen Sapphire 3.6mm/0.302ct Loose Stone
Sale price¥35,800
Diamond 0.171ct loose stone (E, VS2, radiant cut)
Sale price¥35,800
Brazilian Green Tourmaline 1.333ct Loose Stone
Sale price¥49,800
Brazilian Green Tourmaline 0.935ct Loose Stone
Sale price¥45,800
Brazilian Green Tourmaline 1.193ct Loose Stone
Sale price¥49,800
Additional charge: K18WG (base metal) + 10,000 yen
Sale price¥40,000
Additional charge: K18PG (base metal) + 15,000 yen
Sale price¥35,000
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.