Brazilian pink tourmaline 0.781ct loose stone
Sale price¥9,800
Brazilian pink tourmaline 0.918ct loose stone
Sale price¥9,800
Brazilian Pink Tourmaline 1.045ct Loose Stone
Sale price¥9,800
Mexican Fire Opal 1.348ct Loose
Sale price¥15,800
Brazilian Swiss Blue Topaz 1.042ct Loose Stone
Sale price¥9,800
Brazilian Swiss Blue Topaz 0.983ct Loose Stone
Sale price¥8,800
Brazilian Swiss Blue Topaz 0.890ct Loose
Sale price¥8,800
Brazilian Swiss Blue Topaz 0.827ct Loose Stone
Sale price¥8,800
Brazilian Swiss Blue Topaz 0.724ct Loose Stone
Sale price¥8,800
Yellow Diamond (Cabochon Cut) 0.237ct Loose
Sale price¥35,800
Brazilian bicolor tourmaline 13.927ct loose stone
Sale price¥198,000
Cinnabar rough stone (38.1 x 28.8 x 22.4 mm)
Sale price¥98,000
Phosphophyllite rough stone (59.5 x 35.9 x 36 mm)
Sale price¥298,000
Spanish Sphalerite 12.5mm/9.860ct Loose Stone
Sale price¥98,000
[Takeshi Yamamoto] Brazilian Rock Crystal 12.725ct Loose
Sale price¥39,800
Colombian Euclase 1.408ct Loose Stone
Sale price¥24,800
Sri Lankan saffron 0.517ct loose stone, Japan-German
Sale price¥59,800
German Awinite 3.5mm/0.158ct loose stone
Sale price¥98,000
Synthetic Alexandrite 0.460ct loose stone
Sale price¥14,800
Pakistani Axinite (Blue Tint) 0.815ct Loose Stone
Sale price¥45,800
American Red Beryl 0.217ct Loose
Sale price¥49,800
Moldavite from former Czechoslovakia 0.094ct loose stone
Sale price¥6,980
Brazilian Aquamarine 0.176ct Loose Stone
Sale price¥8,800
Colombian Euclase 2.015ct loose stone
Sale price¥18,800
Mexican Hyalite Opal 0.942ct Loose
Sale price¥9,800
Sri Lankan Yellow Sapphire 0.320ct Loose
Sale price¥15,800
Indian Moonstone 3.367ct Loose
Sale price¥9,800
Cambodian Zircon 1.620ct Loose
Sale price¥15,800
Mexican Cantera Opal 11.885ct Loose
Sale price¥49,800
Madagascar sphene 0.803ct loose stone
Sale price¥19,800
South African diamond rough stone 0.430ct
Sale price¥9,800
Tanzanian Sunstone Scapolite 1.780ct Loose
Sale price¥12,800
Dominican Republic Conch Pearl (with flame pattern) 1.560ct loose
Sale price¥25,800
Kenyan gold sheen sapphire 2.3mm/0.083ct loose
Sale price¥8,800
Colombian trapiche emerald (reverse trapiche) 0.134ct rough stone
Sale price¥12,800
[Koshu Precious Stone Cutting] Mexican Fire Opal 1.571ct Loose Patch
Sale price¥69,800
![[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
Sapphire from Sri Lanka (Safarin) 0.245ct loose
Sale price¥12,800
Brazilian alexandrite 0.151ct loose
Sale price¥25,800
Brazilian dumortierite in quartz 3.077ct loose
Sale price¥12,800
Colombian emerald 0.202ct loose stone
Sale price¥59,800
Brazilian Imperial Topaz 0.398ct Loose Stone
Sale price¥12,800
Brazilian Madeira Citrine 6.8mm/1.150ct Loose Stone
Sale price¥4,980
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.