Synthetic black opal 1.209ct loose stone
Sale price¥18,800
Tanzanite from Tanzania 4.9mm/0.531ct loose stone
Sale price¥12,800
Montana Sapphire 0.275ct Loose (Blue Sapphire)
Sale price¥8,800
Montana Sapphire 0.217ct Loose (Blue Sapphire)
Sale price¥8,800
Tanzanian Kornerupine 0.301ct loose stone
Sale price¥25,800
Tanzanite from Tanzania 4.7mm/0.503ct loose stone
Sale price¥14,800
Ethiopian Opal 6.0mm/0.584ct Loose
Sale price¥12,800
Prehnite 3.016ct loose stone
Sale price¥6,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.672ct Loose Stone
Sale price¥15,800
Brazilian Medusa Quartz (Paraiba Quartz) 2.250ct Loose
Sale price¥19,800
Brazilian copper rutilated quartz 1.445ct loose stone
Sale price¥8,800
Brazilian copper rutilated quartz 2.051ct loose stone
Sale price¥8,800
Zimbabwean Euclase 0.107ct loose stone
Sale price¥79,800
Tanzania Magnesioaxinite 0.198ct loose stone by Nikkei
Sale price¥69,800
![[Jeweler's Tools] Limited Quantity: H&C (Hearts & Cupids) Scope, CZ Size Comparison 10 Pieces, 2-Piece Set](http://store.karatz.jp/cdn/shop/files/collage_93cd8b3a-e07f-44c4-a6d0-5eb2f01d53f0.png?v=1743666964&width=4000)
[12558729] Brazilian Alexandrite 0.079ct loose stone
Sale price¥31,800
Brazilian alexandrite 0.078ct loose
Sale price¥29,800
Brazilian Alexandrite 0.066ct loose stone (emerald cut)
Sale price¥22,800
Myanmar Star Peridot 2.678ct Loose Stone
Sale price¥29,800
Myanmar Podretteite 0.790ct loose stone
Sale price¥198,000
Brazilian Limonite in Topaz 10.100ct Loose Stone
Sale price¥25,800
Myanmar Star Peridot 3.644ct Loose Stone
Sale price¥39,800
Sunstone (Illusion Sunstone) 1.934ct Loose
Sale price¥8,800
Tanzania Bicolor Zoisite 6.9mm/1.365ct Loose Stone
Sale price¥24,800
[12558655] Calcite 1.185ct loose stone
Sale price¥23,800
Sri Lankan saffron 0.264ct loose stone with certificate
Sale price¥22,800
[12558638] Safarin 0.268ct loose stone
Sale price¥21,800
Brazilian citrine 2.641ct loose stone
Sale price¥8,800
Colombian pyrite emerald 27.414ct loose stone
Sale price¥298,000
[Sakura Shape] Mexican Opal 8.2mm/1.465ct {Collaboration} Loose Patch
Sale price¥45,800
[Takeshi Yamamoto] Brazilian rose quartz 41.633ct loose stone
Sale price¥59,800
American red beryl 0.080ct loose
Sale price¥39,800
Nigerian Green Beryl 0.340ct Loose Stone
Sale price¥6,980
Myanmar Leuco Garnet 0.504ct Loose Stone JTL Catalog
Sale price¥39,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.189ct Loose Stone
Sale price¥16,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.192ct Loose Stone
Sale price¥13,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.272ct Loose Stone
Sale price¥19,800
[12558581] Pakistani Veirinite 0.183ct loose stone
Sale price¥45,800
Veininite from Pakistan 0.184ct loose stone with gemological report
Sale price¥45,800
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.