Synthetic Alexandrite 4.3mm/0.430ct Loose Stone
Sale price¥12,800
Brazilian Dumortierite in Quartz 0.910ct Loose Stone
Sale price¥9,800
Indian Black Moonstone 1.871ct Loose Gemstone
Sale price¥12,800
Indian Black Moonstone 0.609ct Loose
Sale price¥7,980
Blue Tourmaline 1.460ct Loose Stone Japan-Germany Exchange
Sale price¥39,800
18K Yellow Gold Ruby Ring (Pigeon Blood Color)
Sale price¥128,000
Australian black opal 1.168ct loose stone
Sale price¥39,800
Australian Black Opal 1.539ct Loose
Sale price¥15,800
Australian Black Opal 0.548ct Loose
Sale price¥18,800
Australian black opal, 0.336ct loose stone
Sale price¥19,800
Australian black opal 0.667ct loose stone
Sale price¥12,800
Australian Black Opal 0.552ct Loose
Sale price¥8,800
Australian Black Opal 0.377 ct Loose
Sale price¥15,800
Australian black opal 0.439ct loose
Sale price¥11,800
Brazilian dendritic quartz 3.608ct loose stone
Sale price¥8,800
Bloodshot Iolite Sunstone 2.121ct Loose
Sale price¥12,800
Brazilian Limonite in Topaz 6.579ct loose stone (with rainbow)
Sale price¥18,800
Spanish bicolor sphalerite 1.686ct loose stone
Sale price¥29,800
Brazilian imperial topaz 0.830ct loose
Sale price¥18,800
Sky blue topaz 0.428ct loose stone
Sale price¥5,980
Aquamarine 0.398ct loose stone
Sale price¥7,980
Cambodian Blue Zircon 0.348ct Loose Stone
Sale price¥6,980
Nigerian Star Enstatite 0.880ct Loose Stone
Sale price¥12,800
Gray Diamond 0.158ct Loose (FANCY DARK GRAY, I-1)
Sale price¥45,800
Pakistan scheelite 1.061ct loose (orange scheelite)
Sale price¥25,800
[12551250] Brazilian oil-free emerald 0.120ct loose stone
Sale price¥110,000
Indonesian Parasitic Peridot 0.276ct Loose Stone
Sale price¥98,000
Malawi Moonstone 2.445ct Loose
Sale price¥18,800
Malawi Moonstone (Malawi Moonstone) 3.517 ct Loose
Sale price¥35,800
Malawi Moonstone 3.912ct Loose Gemstone
Sale price¥37,800
4.168ct loose Malawi Moonstone
Sale price¥39,800
Malawi Moonstone 4.392ct Loose
Sale price¥32,800
Malawi Moonstone 4.731ct Loose Stone
Sale price¥29,800
Malawi Moonstone (Malawi Moonstone) 4.777ct Loose
Sale price¥45,800
Malawi Moonstone (Malawi Moonstone) 5.767ct Loose
Sale price¥45,800
Sri Lankan blue sapphire, 0.557 ct, loose
Sale price¥22,800
Brazilian Paraiba Tourmaline 0.048ct (CuO:1.5% MnO:1.0%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.051ct Loose Stone (CuO:1.1% MnO:0.6%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:1.4% MnO:1.1%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:1.2% MnO:1.2%)
Sale price¥35,800
Paraiba Tourmaline Loose Stone from Brazil 0.068ct (CuO: 1.1% MnO: 0.1%)
Sale price¥45,800
0.079ct Loose Brazilian Paraiba Tourmaline (CuO: 1.6% MnO: 2.8%)
Sale price¥29,800
K18YG Tanzanian Tanzanite 0.344ct Pendant Top
Sale price¥39,800
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.