Moss Agate 1.115ct loose
Sale price¥8,800
Mexican egg-in-opal 0.672ct loose stone
Sale price¥11,000
Australian black opal, 0.666ct loose
Sale price¥12,800
Australian Black Opal 0.415ct Loose
Sale price¥18,800
Australian black opal loose stone, 0.618ct
Sale price¥15,800
Australian Black Opal 0.754ct Loose
Sale price¥22,800
Australian Black Opal 0.768ct Loose
Sale price¥25,800
Australian black opal 1.168ct loose stone
Sale price¥39,800
Blue Tourmaline 1.460ct Loose Stone Japan-Germany Exchange
Sale price¥39,800
Mexican bicolor Danburite 1.932ct loose stone by Nikkei
Sale price¥29,800
Brazilian Amethyst 2.975ct Loose Stone
Sale price¥9,800
Indian Black Moonstone 0.609ct Loose
Sale price¥7,980
Brazilian dumortierite in quartz, 0.796 ct, loose
Sale price¥7,980
Brazilian Dumortierite in Quartz 0.543ct Loose Stone
Sale price¥5,980
Brazilian dumortierite in quartz 1.060ct loose (faceted cut)
Sale price¥9,800
South African Rhodochrosite 1.820ct Loose Stone
Sale price¥128,000
Brazilian Medusa Quartz (Paraiba Quartz) 2.524ct loose
Sale price¥29,800
Brazilian Dumortierite in Quartz 1.266ct Loose Stone
Sale price¥12,800
Brazilian Dumortierite in Quartz 0.803ct Loose
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.849ct Loose Gemstone
Sale price¥9,800
0.787 ct faceted Dumortierite in Quartz from Brazil
Sale price¥7,980
Brazilian Dumortierite in Quartz 1.112ct Loose Gemstone (Faceted Cut)
Sale price¥11,000
Brazilian Dumortierite in Quartz 2.282ct Loose Gemstone
Sale price¥18,800
Australian Prehnite 2.051ct loose stone
Sale price¥8,800
Synthetic rutile 2.462ct loose stone
Sale price¥25,800
Australian black opal 0.805ct loose stone
Sale price¥39,800
【Available 9/7 at 10 PM】 Sri Lankan Moonstone 1.578ct Loose Stone
Sale price¥12,800
Australian Prehnite 2.779 ct Loose Stone
Sale price¥12,800
1.519ct loose Oregon sunstone from the United States
Sale price¥15,800
Sri Lankan star sapphire 3.317ct loose
Sale price¥59,800
Zambian bicolor tourmaline 4.019ct loose stone
Sale price¥98,000
Brazilian Rose Quartz 1.793ct Loose Stone
Sale price¥9,800
Sri Lankan pink zircon 1.991ct loose stone
Sale price¥29,800
Mozambican Rhodolite Garnet 3.161ct Loose
Sale price¥22,800
Mexican Hyalite Opal 0.743ct Loose
Sale price¥12,800
Brazilian Elestial Amethyst 1.378ct Loose Stone
Sale price¥12,800
Brazilian Petalite 1.197ct Loose Stone
Sale price¥7,980
Cambodian Blue Zircon (Ratanakiri Blue) 2.822ct Loose Stone
Sale price¥98,000
Colombian Emerald 0.222ct Loose
Sale price¥59,800
1.476ct loose sphalerite from Spain
Sale price¥29,800
Brazilian Blue Topaz Cat's Eye 2.631ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 1.911ct Loose Stone
Sale price¥8,800
Brazilian Dumortierite in Quartz 1.451ct Loose Stone
Sale price¥8,800
[12559903] 2.991ct Brazilian Imperial Topaz Loose Stone
Sale price¥158,000
[12560246] Green Zoisite 1.316ct Loose Stone
Sale price¥15,800
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.