Tanzanite 41.690ct loose
Sale price¥2,480,000
Brazilian Pink Imperial Topaz 2.794ct Loose Japanese-German Edition
Sale price¥128,000
Brazilian Paraiba tourmaline 0.455ct raw stone (CuO: 0.9%, MnO: 2.2%)
Sale price¥15,800
[12559903] 2.991ct Brazilian Imperial Topaz Loose Stone
Sale price¥158,000
Diamond 2.810ct rough stone
Sale price¥9,800
Salt and Pepper Diamond 5.2mm/0.863ct Loose (Cabochon Cut)
Sale price¥98,000
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 4.156ct Loose Stone
Sale price¥18,800
Yellow tourmaline 2.290ct loose
Sale price¥8,800
Tanzanite 2.726ct loose
Sale price¥110,000
South African green diamond rough (makeable) 0.298ct loose
Sale price¥69,800
Tanzanite 2.418ct loose
Sale price¥55,800
Green tourmaline 0.305ct loose stone
Sale price¥3,980
Bicolor tourmaline 1.440ct loose
Sale price¥9,800
Diaspore 0.660ct loose
Sale price¥3,980
Diaspore 0.657ct loose
Sale price¥3,980
Diaspore 0.672ct loose
Sale price¥3,980
Russian demantoid garnet (horsetail recognized) 4.5mm/0.423ct loose
Sale price¥69,800
Sri Lankan tourmaline 4.860ct loose stone (cushion cut)
Sale price¥12,800
Diamond (cabochon cut) 0.196ct loose
Sale price¥29,800
Brazilian Topaz Cat's Eye 8.781ct Loose Stone
Sale price¥8,800
Brazilian Topaz Cat's Eye 7.869ct Loose Stone
Sale price¥8,800
Tanzanian Lavender Tanzanite 2.219ct Loose Stone
Sale price¥55,800
Paraiba tourmaline from Mozambique 1.481ct loose (CuO:0.3%, MnO:4.3%)
Sale price¥158,000
South African diamond rough stone 0.430ct
Sale price¥9,800
Tanzanite from Tanzania 0.350ct loose stone
Sale price¥8,800
Brazilian Imperial Topaz 0.398ct Loose Stone
Sale price¥12,800
Tanzanite from Tanzania 0.237ct loose stone
Sale price¥8,800
Brazilian bicolor tourmaline 13.927ct loose stone
Sale price¥198,000
Yellow Diamond (Cabochon Cut) 0.176ct Loose
Sale price¥29,800
Brazilian bicolor tourmaline 1.032ct loose stone
Sale price¥25,800
Brazilian bicolor tourmaline 1.875ct loose stone
Sale price¥39,800
Brazilian bicolor tourmaline 1.255ct loose stone
Sale price¥25,800
Brazilian pink tourmaline 0.781ct loose stone
Sale price¥9,800
Brazilian pink tourmaline 0.918ct loose stone
Sale price¥9,800
Brazilian Pink Tourmaline 1.045ct Loose Stone
Sale price¥9,800
0.827ct Loose Brazilian Swiss Blue Topaz
Sale price¥8,800
Brazilian Swiss Blue Topaz 0.889ct Loose Stone
Sale price¥8,800
Brazilian Swiss Blue Topaz 0.890ct Loose
Sale price¥8,800
Brazilian Swiss Blue Topaz 1.042ct Loose Stone
Sale price¥9,800
Brazilian Swiss Blue Topaz 0.724ct Loose Stone
Sale price¥8,800
Brazilian Swiss Blue Topaz 1.043ct Loose Stone
Sale price¥8,800
Brazilian Blue Topaz 1.355ct Loose
Sale price¥8,800
Brazilian Blue Topaz 0.766ct 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.