Afghanistan Green Tourmaline 7.8mm/1.738ct Loose Stone
Sale price¥59,800
Mexican Hyalite Opal 1.420ct Loose
Sale price¥18,800
Brazilian pink tourmaline 1.515ct loose stone
Sale price¥98,000
Brazilian citrine 1.962ct loose stone
Sale price¥9,800
Brazilian citrine 1.659ct loose stone
Sale price¥9,800
Brazilian citrine 1.644ct loose stone
Sale price¥9,800
Sri Lankan purple spinel 1.060ct loose stone
Sale price¥98,000
Pakistani Axinite (Green Tint) 1.476ct Loose Stone
Sale price¥39,800
Brazilian London Blue Topaz 1.281ct Loose
Sale price¥12,800
Brazilian Elestial Amethyst 1.378ct Loose Stone
Sale price¥12,800
Brazilian Elestial Amethyst 1.586ct Loose Stone
Sale price¥8,800
Brazilian Dumortierite in Quartz 1.414ct Loose Stone
Sale price¥12,800
Colombian Euclase 1.817ct Loose Stone
Sale price¥29,800
Brazilian bicolor tourmaline 1.056ct loose
Sale price¥12,800
Rhodochrosite 1.884ct loose from Detroit City, USA
Sale price¥188,000
Zoisite 1.219ct loose stone
Sale price¥15,800
Brazilian bicolor tourmaline 1.965ct loose stone
Sale price¥18,800
Mozambique Rhodolite Garnet 1.052ct Loose Stone
Sale price¥8,800
Sri Lankan star sapphire 1.093ct loose
Sale price¥8,800
Australian boulder opal 1.457ct loose stone
Sale price¥9,800
Australian Prehnite 1.758ct loose stone
Sale price¥9,800
Zimbabwean Blue Apatite (UV type) 1.189ct loose stone
Sale price¥12,800
[12548587 published] Star sapphire from Sri Lanka 1.325ct loose
Sale price¥5,980
Aquamarine 1.574ct loose stone
Sale price¥9,800
Pink zoisite from Tanzania 6.7mm/1.393ct loose (peach tanzanite)
Sale price¥128,000
Bicolor tanzanite 1.165ct rough stone from Tanzania
Sale price¥7,980
Bicolor tanzanite 1.121ct rough stone from Tanzania
Sale price¥6,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.181ct loose
Sale price¥3,980
Australian boulder opal 1.156ct loose
Sale price¥3,980
Australian boulder opal 1.173ct loose
Sale price¥5,980
Brazilian Petalite 1.197ct Loose Stone
Sale price¥7,980
Mexican Cantera Opal 1.120ct Loose
Sale price¥8,800
Mozambique Almandine Garnet 1.652ct Loose Stone
Sale price¥15,800
Mozambique Almandine Garnet 7.7mm/1.781ct Loose Stone
Sale price¥18,800
[Rouge Cut] Brazilian Dumortierite in Quartz 1.184ct Loose Stone
Sale price¥14,800
[Rouge Cut] Brazilian Dumortierite in Quartz 1.493ct Loose Stone
Sale price¥9,800
Vietnamese aquamarine 1.728ct loose stone
Sale price¥18,800
Malawi Bicolor Zircon 1.661ct Loose Stone
Sale price¥59,800
Australian boulder opal 1.868ct loose
Sale price¥18,800
Australian boulder opal 1.675ct loose
Sale price¥14,800
YAG (yttrium aluminum garnet) 1.792ct loose
Sale price¥12,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 1.490ct Loose (Faceted)
Sale price¥35,800
Tanzanian Bicolor Grossular Garnet 1.359ct Loose Stone
Sale price¥49,800
Zimbabwean sphene 1.170ct loose stone
Sale price¥22,800
Brazilian Swiss Blue Topaz 1.065ct Loose Stone
Sale price¥11,000
1.008ct Tanzanian orange zircon loose stone
Sale price¥9,800
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.