Diamond (cabochon cut) 0.196ct loose
Sale price¥29,800
Tanzanian Dragon Garnet 0.746ct Loose Stone
Sale price¥17,800
Mexican cantera opal 14.740ct loose
Sale price¥14,800
Australian boulder opal 14.860ct loose
Sale price¥18,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 3.041ct loose
Sale price¥18,800
Ruby from Greenland 0.421ct loose with certificate
Sale price¥18,800
Mexican cantera opal 32.560ct loose
Sale price¥29,800
Colombian Trapiche Emerald (Reverse Trapiche) 4.3mm/0.329ct Rough Stone
Sale price¥29,800
Mexican Fire Opal 1.624ct Loose (Contralus Opal)
Sale price¥12,800
Ruby from Greenland 0.307ct loose with certificate
Sale price¥15,800
Synthetic rutile 5mm/0.585ct loose
Sale price¥12,800
Synthetic rutile 5mm/0.642ct loose stone
Sale price¥12,800
Mexican Cantera Opal 2.661ct Loose
Sale price¥12,800
Brazilian bicolor tourmaline 0.880ct loose stone
Sale price¥12,800
Mongolian color change andesine 0.749ct loose stone
Sale price¥12,800
Mongolian color change andesine 0.665ct loose stone
Sale price¥12,800
Brazilian dumortierite in quartz 3.077ct loose
Sale price¥12,800
Brazilian alexandrite 0.151ct loose
Sale price¥25,800
Sapphire from Sri Lanka (Safarin) 0.245ct loose
Sale price¥12,800
![[Koshu Precious Stones Plusthree] Smoky Quartz 0.657ct Loose Patch](http://store.karatz.jp/cdn/shop/files/P1185356.jpg?v=1752322391&width=4000)
[Koshu Precious Stones Plusthree] Smoky Quartz 0.657ct Loose Patch
Sale price¥19,800
Colombian trapiche emerald (reverse trapiche) 0.134ct rough stone
Sale price¥12,800
Dominican Republic Conch Pearl (with flame pattern) 1.560ct loose
Sale price¥25,800
Tanzanian Sunstone Scapolite 1.780ct Loose
Sale price¥12,800
Mexican Cantera Opal 1.209ct Loose Stone (Rose Cut)
Sale price¥12,800
Mexican Cantera Opal 1.394ct Loose Stone (Rose Cut)
Sale price¥12,800
Mexican Cantera Opal 1.436ct Loose Stone (Rose Cut)
Sale price¥12,800
Cambodian Zircon 1.620ct Loose
Sale price¥15,800
Madagascar sphene 0.803ct loose stone
Sale price¥19,800
Zimbabwean Euclase 0.129ct Loose Stone with Certificate of Authenticity
Sale price¥29,800
Brazilian bicolor topaz 3.098ct loose stone
Sale price¥29,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 5.2mm/0.533ct Loose Stone
Sale price¥12,800
Blue beryl (Macis beryl) 0.181ct loose stone
Sale price¥12,800
Mexican Fire Opal (Faceted Cut) 0.844ct Loose
Sale price¥15,800
Bicolor Fluorite 24.682ct Loose
Sale price¥29,800
Sri Lankan Yellow Sapphire 0.320ct Loose
Sale price¥15,800
Colombian Euclase 2.015ct loose stone
Sale price¥18,800
Mexican Hyalite Opal 6.0mm/0.708ct Loose
Sale price¥25,800
Synthetic Alexandrite 0.460ct loose stone
Sale price¥14,800
Brazilian Rhodonite 1.558ct loose stone
Sale price¥22,800
Yellow Diamond (Cabochon Cut) 0.176ct Loose
Sale price¥29,800
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.