Russian demantoid garnet (horsetail recognized) 4.6mm/0.425ct loose
Sale price¥69,800
Tanzanite 41.690ct loose
Sale price¥2,480,000
Brazilian Pink Imperial Topaz 2.794ct Loose Japanese-German Edition
Sale price¥128,000
Pink tourmaline cat's eye 3.800ct loose
Sale price¥8,800
Brazilian Paraiba tourmaline 0.455ct raw stone (CuO: 0.9%, MnO: 2.2%)
Sale price¥15,800
Brazilian Paraiba tourmaline 0.448ct raw stone (CuO:2.7%, MnO:2.0%)
Sale price¥19,800
[12559903] 2.991ct Brazilian Imperial Topaz Loose Stone
Sale price¥158,000
Tourmaline cat's eye 4.790ct loose
Sale price¥6,980
Tourmaline cat's eye 4.590ct loose
Sale price¥12,800
Diamond 2.810ct rough stone
Sale price¥9,800
[On sale at 10pm on August 19th] Sliced Trapiche Diamond 0.228ct Loose
Sale price¥18,800
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
Bicolor imperial topaz 1.725ct loose
Sale price¥79,800
Tanzanite 2.726ct loose
Sale price¥110,000
South African green diamond rough (makeable) 0.298ct loose
Sale price¥69,800
Paraiba tourmaline from Brazil 0.252ct loose (CuO:0.9%, MnO:2.0%)
Sale price¥29,800
Tanzanite 2.418ct loose
Sale price¥55,800
Brazilian Paraiba tourmaline 0.229ct loose (CuO:0.8%, MnO:2.2%)
Sale price¥39,800
Brazilian London Blue Topaz 0.429ct Loose
Sale price¥6,980
Brazilian London Blue Topaz 0.321ct Loose Stone
Sale price¥5,980
Green tourmaline 0.305ct loose stone
Sale price¥3,980
Pink tourmaline 0.506ct loose
Sale price¥5,980
Pink tourmaline 0.553ct loose
Sale price¥6,980
Pink tourmaline 1.011ct loose
Sale price¥8,800
Pink tourmaline 0.734ct loose
Sale price¥7,980
Bicolor tourmaline 1.440ct loose
Sale price¥9,800
Bicolor tourmaline 1.704ct loose
Sale price¥12,800
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
Brazilian bicolor tourmaline 0.880ct loose stone
Sale price¥12,800
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
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.