Brazilian Paraiba Tourmaline in Quartz 0.295ct Loose Stone
Sale price¥14,800
Tanzanite from Tanzania 0.469ct loose stone
Sale price¥14,800
Madagascar Blue Sapphire 4.0mm/0.326ct Loose
Sale price¥11,000
Madagascar White Sapphire 0.485ct Loose
Sale price¥19,800
Madagascar pink sapphire 0.284ct loose stone
Sale price¥12,800
Brazilian Euclase 0.216ct Loose Stone
Sale price¥25,800
Tanzanite from Tanzania 0.269ct loose stone
Sale price¥9,800
Tanzanian Kornerupine 0.392ct loose stone
Sale price¥35,800
Tanzanian Kornerupine 0.172ct loose stone
Sale price¥18,800
Sri Lankan White Sapphire 4.0mm/0.242ct Loose Stone
Sale price¥12,800
American Red Beryl 0.140ct Loose
Sale price¥29,800
Russian Demantoid Garnet 2.5mm/0.111ct Loose Stone
Sale price¥18,800
American Benitoite 0.286ct loose stone
Sale price¥158,000
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
Madagascar Dumortierite 0.172ct loose stone (single crystal)
Sale price¥128,000
Afghanistan Bicolor Tourmaline 0.471ct Loose Stone
Sale price¥9,800
Madagascar Pezzottaite 0.206ct loose stone
Sale price¥12,800
Pezzottite from Madagascar 0.158ct loose
Sale price¥9,800
Madagascar Pezzottaite 0.177ct loose stone
Sale price¥11,000
Ruby 4.0mm/0.305ct loose stone
Sale price¥45,800
Brazilian Alexandrite 0.135ct loose stone
Sale price¥35,800
Diamond (cabochon cut) 0.247ct loose (VS-SI class equivalent)
Sale price¥39,800
Tanzanian Blue Spinel 0.165ct Loose Stone
Sale price¥8,800
Tanzania Blue Spinel 0.244ct Loose Stone
Sale price¥9,800
Tanzanian grey spinel 0.291ct loose stone
Sale price¥9,800
Tanzania Purple Spinel 0.236ct Loose Stone
Sale price¥9,800
Tanzania Purple Spinel 0.333ct Loose Stone
Sale price¥9,800
Tanzania Purple Spinel 0.356ct Loose Stone
Sale price¥8,800
Tanzania Purple Spinel 0.307ct Loose Stone
Sale price¥9,800
Tanzania Purple Spinel 0.346ct Loose Stone
Sale price¥8,800
Zambian emerald 0.181ct loose stone
Sale price¥8,800
Grandidierite from Madagascar 2.7mm/0.102ct loose stone
Sale price¥25,800
Pakistani Ludwigite in Peridot 0.285ct loose stone
Sale price¥5,980
Madagascar sphene 0.430ct loose stone
Sale price¥8,800
Synthetic Alexandrite 0.472ct loose stone
Sale price¥8,800
Madagascar sapphire 0.375ct loose stone
Sale price¥8,800
Pink tourmaline 0.333ct loose stone
Sale price¥9,800
Golden Iolite (Cordierite) 0.221ct loose stone
Sale price¥7,980
Australian Prehnite 5.4mm/0.475ct loose stone
Sale price¥6,980
Tanzania Bicolor Zoisite 0.147ct Loose Stone
Sale price¥3,980
Tanzania Bicolor Zoisite 3.7mm/0.228ct Loose Stone
Sale price¥5,980
Sillimanite from Sri Lanka 0.183ct loose stone
Sale price¥6,980
Sri Lankan sapphire 0.211ct loose stone
Sale price¥8,800
Zambian Emerald 3.7mm/0.215ct Loose Stone (Silky Emerald)
Sale price¥9,800
Sri Lankan Yellow Sapphire 0.324ct Loose
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.