Bicolor Tourmaline 0.378ct Loose Stone (Hexagonal Cut)
Sale price¥8,800
Pink tourmaline 0.819ct loose
Sale price¥9,800
Pink tourmaline 0.539ct loose stone (heart shape)
Sale price¥9,800
Scapolite 0.587ct loose stone from Japan and Germany
Sale price¥8,800
Nigerian Cobalt Gahnite 0.158ct Loose Stone with Certification
Sale price¥22,800
Nigerian Cobalt-bearing Gahnite 0.157ct Loose with Certificate
Sale price¥22,800
0.154ct Nigerian Cobalt Hausmannite Loose Stone with Certificate
Sale price¥24,800
Madagascar Padparadscha Sapphire 3.9mm/0.336ct Loose DGL Certified
Sale price¥45,800
0.210ct Colombian Non-Oil Emerald Loose Stone GIA
Sale price¥228,000
0.715ct Loose Alexandrite from Orissa, India with Gemstone Report
Sale price¥18,800
Massive Grabovite from Myanmar 0.351ct Loose Stone GIA
Sale price¥128,000
0.985 ct Loose Bicolor Zircon from Malawi (Malawi Zircon)
Sale price¥39,800
Mongolian Andesine 0.464ct Loose Stone
Sale price¥9,800
Sugilite from South Africa, 0.786ct loose stone
Sale price¥12,800
Ruby 0.820ct Loose Gem (Hohki-kyo)
Sale price¥39,800
Loose 0.239ct Paraiba Tourmaline from Brazil (CuO: 0.8%, MnO: 3.7%)
Sale price¥45,800
Paraiba Tourmaline from Brazil 0.265ct Loose (CuO: 0.7%, MnO: 3.0%)
Sale price¥29,800
Brazilian Paraiba Tourmaline 0.205ct Loose Stone (CuO: 0.8%, MnO: 3.1%)
Sale price¥39,800
Brazilian Paraiba Tourmaline 0.211ct Loose (CuO:0.6%, MnO:3.1%)
Sale price¥39,800
Brazilian Paraiba Tourmaline 0.065ct Loose Stone (CuO: 2.0%, MnO: 2.4%)
Sale price¥49,800
0.066ct loose Brazilian Paraiba Tourmaline (CuO: 1.5%, MnO: 2.2%)
Sale price¥45,800
Paraiba Tourmaline from Brazil, 0.063 ct, loose (CuO: 1.8%, MnO: 2.4%)
Sale price¥55,800
Loose 0.061ct Brazilian Paraiba Tourmaline (CuO: 1.7%, MnO: 2.2%)
Sale price¥49,800
0.062ct Loose Paraiba Tourmaline from Brazil (CuO: 1.7%, MnO: 2.5%)
Sale price¥47,800
Pink tourmaline 0.845ct loose stone
Sale price¥12,800
Yellow Opal 0.372ct Loose (Faceted Cut)
Sale price¥8,800
Goshenite 0.846ct loose stone
Sale price¥7,980
Tanzanian Kornerupine 0.172ct loose stone
Sale price¥12,800
Paraiba tourmaline from Brazil 0.061ct loose
Sale price¥25,800
Paraiba tourmaline from Brazil 0.049ct loose
Sale price¥19,800
Tanzanian Kornerupine 0.213ct loose stone
Sale price¥12,800
Color change sapphire 0.473ct loose stone (purple sapphire)
Sale price¥25,800
Paraiba tourmaline from Brazil 0.018ct loose
Sale price¥12,800
Madagascar Green Sapphire 0.253ct Loose
Sale price¥9,800
Madagascar Yellow Sapphire 4.4mm/0.417ct Loose
Sale price¥14,800
Madagascar Blue Sapphire 0.302ct Loose
Sale price¥15,800
Madagascar pink sapphire 0.346ct loose stone
Sale price¥15,800
Madagascar pink sapphire 0.243ct loose stone
Sale price¥8,800
Sri Lankan Blue Sapphire 0.519ct Loose
Sale price¥14,800
Tanzania Green Zoisite 0.709ct Loose Stone
Sale price¥16,800
0.093ct Hackmanite from Afghanistan
Sale price¥16,800
Afghan Hackmanite 0.205 ct Loose
Sale price¥36,800
Brazilian Seafoam Tourmaline, 4.1mm/0.303ct loose stone
Sale price¥16,800
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.