Pakistani Veirinite 0.206ct loose stone
Sale price¥55,800
Sri Lankan saffron 0.320ct loose stone with certificate of authenticity
Sale price¥29,800
Diamond (cabochon cut) 0.196ct loose
Sale price¥29,800
Tanzanian Dragon Garnet 0.746ct Loose Stone
Sale price¥17,800
Zimbabwe bicolor euclase 0.385ct loose stone
Sale price¥98,000
Taaffeite from Myanmar 0.805ct loose Japanese-German edition
Sale price¥45,800
Afghanistan Lazurite in Sodalite 0.579ct Loose Stone
Sale price¥9,800
Brazilian Green Beryl Cat's Eye 0.559ct Loose Stone
Sale price¥5,980
Indian Labradorite 6mm/0.733ct Loose Stone (Rose Cut)
Sale price¥2,980
Indian Labradorite 6mm/0.769ct loose stone (rose cut)
Sale price¥2,980
Ruby from Greenland 0.421ct loose with certificate
Sale price¥18,800
Madagascar Apatite 0.371ct Loose Stone
Sale price¥2,980
Rubellite from Mozambique 0.748ct loose
Sale price¥9,800
Colombian Trapiche Emerald (Reverse Trapiche) 4.3mm/0.329ct Rough Stone
Sale price¥29,800
Sri Lankan Purple Sapphire 0.502ct Loose
Sale price¥7,980
Mongolian color change andesine 6.0mm/0.754ct loose stone
Sale price¥8,800
Brazilian Rainbow Scapolite 3mm/0.120ct Loose Stone
Sale price¥3,980
Ruby from Greenland 0.307ct loose with certificate
Sale price¥15,800
Mexican Fire Opal 5mm/0.342ct Loose (Contralus Opal)
Sale price¥9,800
Tibetan Andesine 4.2mm/0.257ct Loose Stone
Sale price¥2,980
Tibetan Andesine 4.5mm/0.289ct Loose Stone
Sale price¥2,980
Synthetic rutile 5mm/0.585ct loose
Sale price¥12,800
Synthetic rutile 5mm/0.642ct 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
Madagascar Grandidierite 0.156ct loose stone
Sale price¥35,800
Brazilian bicolor tourmaline 0.880ct loose stone
Sale price¥12,800
Spanish Andalusite 4mm/0.204ct loose stone (rose cut)
Sale price¥4,980
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 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
Colombian trapiche emerald (reverse trapiche) 0.134ct rough stone
Sale price¥12,800
Kenyan gold sheen sapphire 2.3mm/0.083ct loose
Sale price¥8,800
South African diamond rough stone 0.430ct
Sale price¥9,800
Sri Lankan Star Sapphire 0.725ct Loose
Sale price¥6,980
Tanzanite from Tanzania 0.350ct loose stone
Sale price¥8,800
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
Madagascar sphene 0.803ct loose stone
Sale price¥19,800
Brazilian Imperial Topaz 0.398ct Loose Stone
Sale price¥12,800
Zimbabwean Euclase 0.129ct Loose Stone with Certificate of Authenticity
Sale price¥29,800
Tanzanite from Tanzania 0.237ct loose stone
Sale price¥8,800
Orange calcite 0.740ct loose stone by Nikkei
Sale price¥9,800
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.