Round Cut
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.656ct Loose Stone
Sale price¥15,800
Brazilian Golden Beryl 7.3mm/1.391ct Loose Stone
Sale price¥8,800
Tanzanite from Tanzania 4.9mm/0.531ct loose stone
Sale price¥12,800
Tanzanite from Tanzania 4.7mm/0.503ct loose stone
Sale price¥14,800
Russian Demantoid Garnet (Horsetail certified) 3.6mm/0.293ct loose stone
Sale price¥49,800
Tanzania Bicolor Zoisite 6.9mm/1.365ct Loose Stone
Sale price¥24,800
Brazilian Dumortierite in Quartz 1.256ct loose stone
Sale price¥15,800
[Dandelion Cut] Rhodolite Garnet 1.115ct {Collaboration} Loose Stone
Sale price¥29,800
Ethiopian Sunstone 5.1mm/0.468ct Loose
Sale price¥9,800
Brazilian Blue Apatite 5.5mm/0.805ct Loose Stone
Sale price¥9,800
Afghanistan Blue Tourmaline 5.0mm/0.457ct Loose Stone
Sale price¥19,800
Brazilian Green Tourmaline 4.1mm/0.259ct Loose Stone
Sale price¥12,800
Brazilian Green Tourmaline 0.236ct Loose Stone
Sale price¥9,800
Brazilian Green Tourmaline 0.270ct Loose
Sale price¥12,800
Brazilian Swiss Blue Topaz 6.4mm/1.225ct Loose Stone
Sale price¥9,800
Vietnam Aquamarine 4.5mm/0.319ct Loose Stone
Sale price¥7,980
Vietnam Aquamarine 5.6mm/0.577ct Loose Stone
Sale price¥6,980
Spanish Sphalerite 0.949ct loose stone
Sale price¥18,800
Brazilian Alexandrite 2.8mm/0.100ct Loose Stone
Sale price¥19,800
Sri Lankan magnetite 6.245ct loose stone by Nikkei
Sale price¥22,800
Colombian emerald 3.7mm/0.207ct loose stone
Sale price¥22,800
Brazilian Alexandrite 2.9mm/0.123ct loose stone
Sale price¥29,800
Brazilian Paraiba Tourmaline in Quartz 0.295ct Loose Stone
Sale price¥14,800
Madagascar Blue Sapphire 4.0mm/0.326ct Loose
Sale price¥11,000
YAG (Yttrium Aluminum Garnet) 2.861ct loose stone
Sale price¥25,800
Sri Lankan White Sapphire 4.0mm/0.242ct Loose Stone
Sale price¥12,800
Russian Demantoid Garnet (Horsetail Recognized) 5.2mm/0.661ct Loose Stone
Sale price¥198,000
Russian Demantoid Garnet 2.5mm/0.111ct Loose Stone
Sale price¥18,800
Bekiri Blue Garnet (Color Change Garnet) from Madagascar 0.170ct Loose
Sale price¥17,800
Bekiri Blue Garnet (Color Change Garnet) from Madagascar 0.160ct Loose
Sale price¥16,800
Tanzanite from Tanzania 7.0mm/1.427ct loose stone
Sale price¥55,800
Ruby 4.0mm/0.305ct loose stone
Sale price¥45,800
Brazilian Alexandrite 0.135ct loose stone
Sale price¥35,800
Brazilian Alexandrite 0.072ct Loose Stone JTL Catalog
Sale price¥12,800
Namibian Jeremejevite 2.3mm/0.063ct loose stone
Sale price¥12,800
Australian Prehnite 5.4mm/0.475ct loose stone
Sale price¥6,980
Zambian Emerald 3.7mm/0.215ct Loose Stone (Silky Emerald)
Sale price¥9,800
Indian Moss Agate 0.776ct Loose Stone
Sale price¥6,980
Mozambique Almandine Garnet 6.7mm/1.308ct Loose Stone
Sale price¥12,800
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.