Australian black opal 3.242ct loose stone
Sale price¥59,800
Bolivian Ametrine 36.887ct loose stone
Sale price¥79,800
Australian Rainbow Lattice Sunstone 1.746ct Loose Stone
Sale price¥12,800
Mexican Fire Opal 2.279ct Loose Stone
Sale price¥15,800
[12552038] Beryl Cat's Eye 32.703ct Loose Stone
Sale price¥98,000
[12552306] Iolite 14.158ct loose stone
Sale price¥258,000
[12551148] Australian black opal 3.890ct loose stone
Sale price¥69,800
Brazilian dendritic quartz 4.587ct loose stone
Sale price¥9,800
Pyrite in emerald from Chivor Mine, Colombia, 4.221 ct, loose
Sale price¥98,000
Malawi Moonstone 2.428ct Loose
Sale price¥18,800
Malawi Moonstone (Malawi Moonstone) 2.209ct Loose Stone
Sale price¥15,800
Malawi Moonstone 2.201ct Loose
Sale price¥15,800
Loose 1.661 ct Malawi Moonstone
Sale price¥12,800
Malawi Moonstone 2.601ct Loose
Sale price¥5,980
Brazilian Marcasite in Quartz 6.670ct Loose Gemstone
Sale price¥25,800
Amethyst 4.249ct rough stone
Sale price¥4,980
Brazilian Quartz in Quartz 15.373ct Loose Stone
Sale price¥18,800
Bicolor tourmaline 4.448ct loose stone
Sale price¥55,800
Kunzite from Afghanistan 12mm/8.834ct loose stone
Sale price¥39,800
Kochi Prefecture Blood Coral 2.340ct Loose
Sale price¥19,800
Kochi Prefecture Blood Coral 2.294ct Loose
Sale price¥19,800
Kochi Prefecture red coral 2.187ct loose
Sale price¥19,800
Kochi Prefecture Deep Red Coral 1.975ct Loose Stone
Sale price¥18,800
Uncut Kochi Prefecture Blood Coral 6.520ct
Sale price¥8,800
Kochi Prefecture Natural Red Coral, 16.659 ct, Branch (Raw Material)
Sale price¥18,800
Synthetic Moissanite 8.679ct loose stone
Sale price¥29,800
Sri Lankan Star Sapphire 6.477ct Loose
Sale price¥49,800
Sri Lankan Star Sapphire 7.111ct Loose
Sale price¥59,800
Brazilian Flower Quartz 7.064ct Loose Stone
Sale price¥14,800
Brazilian Romanesite in Amethyst 7.083ct Loose Stone
Sale price¥15,800
Brazilian Aquamarine 68.088ct Loose Stone with Gem Identification Report
Sale price¥39,800
Australian Boulder Opal 41.775 ct Loose Stone
Sale price¥19,800
Australian Boulder Opal 12.216ct Loose
Sale price¥15,800
Brazil Color Change Amethyst 6.559ct Loose Stone
Sale price¥15,800
Brazil Rose Amethyst 6.325ct Loose Gemstone
Sale price¥12,800
Brazilian Limonite in Topaz 7.141ct Loose
Sale price¥19,800
Tanzanian Bi-Color Grossular Garnet 2.057ct Loose Stone
Sale price¥55,800
Brazilian Tricolor Tourmaline 32.207ct Loose (Parti-color Tourmaline)
Sale price¥398,000
Australian Opal with Matrix (14.840ct Loose Stone) with Certificate
Sale price¥69,800
Kunzite from Afghanistan (Lilac Pink) 49.724 ct Loose Gemstone
Sale price¥298,000
Bicolor Tanzanite 5.582ct rough stone
Sale price¥18,800
Mexican Cantera Opal 17.284ct Loose
Sale price¥39,800
Spanish sphalerite 6.392 ct loose stone
Sale price¥79,800
Mexican Cantera Opal 7.520 ct Loose Stone with Appraisal
Sale price¥24,800
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.