Brazilian Rainbow Aquamarine (Iridescent Aquamarine) 1.439ct Loose Stone
Sale price¥12,800
American Benitoite 0.158ct loose stone
Sale price¥59,800
American Benitoite 0.296ct loose stone
Sale price¥148,000
Unheated blue sapphire from Madagascar 1.310ct loose GIA
Sale price¥89,800
Cambodian orange zircon 1.519ct loose stone
Sale price¥9,800
Madagascar Grandidierite 0.156ct loose stone
Sale price¥35,800
Brazilian bicolor tourmaline 0.880ct loose stone
Sale price¥12,800
Cambodian orange zircon 1.320ct loose stone
Sale price¥9,800
Cambodian orange zircon 1.249ct loose stone
Sale price¥9,800
Spanish Andalusite 4mm/0.204ct loose stone (rose cut)
Sale price¥4,980
Dominican Republic Conch Pearl 0.388ct Loose
Sale price¥7,980
Mongolian color change andesine 0.749ct loose stone
Sale price¥12,800
Mongolian color change andesine 0.665ct loose stone
Sale price¥12,800
Brazilian Madeira Citrine 6.8mm/1.150ct Loose Stone
Sale price¥4,980
Brazilian alexandrite 0.151ct loose
Sale price¥25,800
Sapphire from Sri Lanka (Safarin) 0.245ct loose
Sale price¥12,800
![[Koshu Precious Stones Plusthree] Smoky Quartz 0.657ct Loose Patch](http://store.karatz.jp/cdn/shop/files/P1185356.jpg?v=1752322391&width=4000)
[Koshu Precious Stones Plusthree] Smoky Quartz 0.657ct Loose Patch
Sale price¥19,800
[Koshu Precious Stone Cutting] Mexican Fire Opal 1.571ct Loose Patch
Sale price¥69,800
Colombian trapiche emerald (reverse trapiche) 0.134ct rough stone
Sale price¥12,800
Dominican Republic Conch Pearl (with flame pattern) 0.862ct loose
Sale price¥12,800
Dominican Republic Conch Pearl (with flame pattern) 0.620ct loose
Sale price¥12,800
Dominican Republic Conch Pearl (with flame pattern) 1.560ct loose
Sale price¥25,800
Tanzanian Sunstone Scapolite 1.780ct Loose
Sale price¥12,800
South African diamond rough stone 0.430ct
Sale price¥9,800
Sri Lankan Star Sapphire 1.028ct Loose
Sale price¥8,800
Sri Lankan Star Sapphire 0.725ct Loose
Sale price¥6,980
Mexican Cantera Opal 1.209ct Loose Stone (Rose Cut)
Sale price¥12,800
Mexican Cantera Opal 1.394ct Loose Stone (Rose Cut)
Sale price¥12,800
Mexican Cantera Opal 1.383ct Loose Stone (Rose Cut)
Sale price¥12,800
Mexican Cantera Opal 1.436ct Loose Stone (Rose Cut)
Sale price¥12,800
Brazilian Unheated Bicolor Paraiba Tourmaline 0.105ct Loose GIA
Sale price¥198,000
Vietnam Pink Sapphire 1.690ct Loose GIA
Sale price¥98,000
Sri Lankan Blue Sapphire (Ice Blue) 0.271ct Loose (Princess Cut)
Sale price¥12,800
Sri Lankan Rhodolite Garnet 0.244ct Loose Stone, Japan-Germany Scale
Sale price¥8,800
Colombian emerald 0.202ct loose stone
Sale price¥59,800
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.