Brazilian Sky Blue Topaz (untreated) 3.085ct loose stone
Sale price¥19,800
Brazilian copper rutilated quartz 2.211ct loose stone
Sale price¥12,800
Brazilian copper rutilated quartz 2.073ct loose stone
Sale price¥9,800
Australian black opal 4.528ct loose
Sale price¥39,800
Indian Moonstone 2.009ct Loose
Sale price¥15,800
Brazilian Dendritic Agate 3.016ct Loose Stone
Sale price¥12,800
Brazilian Dendritic Agate 2.409ct Loose Stone
Sale price¥9,800
Mozambique Almandine Garnet 2.185ct Loose Stone
Sale price¥15,800
Brazilian Blue Topaz 2.912ct Loose
Sale price¥12,800
Chrysoprase 3.108ct loose stone
Sale price¥8,800
Chrysoprase 2.959ct loose stone
Sale price¥8,800
Chrysoprase 3.003ct loose stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 2.551ct Loose Stone
Sale price¥19,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 2.473ct Loose Stone
Sale price¥29,800
Brazilian Dendritic Quartz 4.645ct Loose Stone
Sale price¥9,800
Brazilian dendritic quartz 2.381ct loose stone
Sale price¥7,980
Brazilian Paraiba Tourmaline in Quartz 2.403ct loose stone
Sale price¥45,800
Brazilian Dalmatian Quartz 2.041ct Loose Stone
Sale price¥12,800
Synthetic Moissanite 10mm/4.147ct Loose Stone
Sale price¥16,800
[Dandelion cut] Pyrope almandine garnet 9.0mm/3.566ct loose stone
Sale price¥35,800
Bicolor sapphire 2.040ct loose stone
Sale price¥59,800
[Sakura Shape] Mexican Opal 2.551ct Loose Patch
Sale price¥59,800
[Rouge cut] Almandine garnet 2.476ct loose stone
Sale price¥9,800
Tanzanian bicolor tanzanite 3.018ct rough and loose stone set of 2
Sale price¥6,980
Color shift amethyst 4.191ct loose stone
Sale price¥14,800
Madagascar White Topaz (Needle-in Topaz) 4.086ct Loose
Sale price¥15,800
Brazilian Rubellite (Red Tourmaline) 3.844ct Loose Stone
Sale price¥128,000
Brazilian Romanesite in Quartz 4.331ct Loose Stone
Sale price¥9,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 4.807ct Loose Stone
Sale price¥15,800
Mexican Cantera Opal 2.809ct Loose
Sale price¥25,800
Mexican Cantera Opal 3.280ct Loose
Sale price¥9,800
Mexican Cantera Opal 4.973ct Loose
Sale price¥15,800
Mexican Cantera Opal 2.982ct Loose
Sale price¥14,800
Mexican Smithsonite 2.697ct loose stone
Sale price¥9,800
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
Brazilian Limonite in Topaz 3.399ct loose stone
Sale price¥8,800
Brazilian Medusa Quartz (Paraiba Quartz) 2.089ct loose stone
Sale price¥16,800
Sri Lankan Goethite Topaz 4.992ct Loose Stone
Sale price¥14,800
[Koshu Precious Stones plusthree] Amethyst 4.306ct Loose Stone Patch
Sale price¥25,800
Tanzanite from Tanzania 2.011ct loose stone
Sale price¥65,800
Brazilian Green Tourmaline 2.907ct Loose Stone
Sale price¥98,000
Brazilian Green Tourmaline 4.374ct Loose Stone
Sale price¥98,000
[Camellia Cut] Brazilian Ametrine 4.293ct [Collaboration] Loose Patch
Sale price¥49,800
Brazilian parti-color tourmaline 2.702ct loose stone
Sale price¥69,800
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.