Tanzanian Kornerupine 0.200ct Loose Stone
Sale price¥9,800
Colombian oil-free emerald 0.310ct loose stone
Sale price¥298,000
Salt and pepper diamond 0.446ct loose
Sale price¥39,800
Mozambique Pink Sapphire 0.276ct Loose (Hot Pink Sapphire)
Sale price¥9,800
Purple Spinel 4.3mm/0.323ct Loose Stone
Sale price¥6,980
Violet spinel 0.301ct loose
Sale price¥6,980
Pink tourmaline 0.466ct loose
Sale price¥8,800
Tanzania Zoisite 0.278ct loose stone
Sale price¥7,980
Zoisite 0.216ct loose stone (heart shape)
Sale price¥7,980
Zoisite 0.162ct loose stone (heart shape)
Sale price¥7,980
Zoisite 0.247ct loose stone (heart shape)
Sale price¥7,980
Colombian mint color emerald 0.136ct loose stone
Sale price¥6,980
Colombian mint color emerald 0.155ct loose stone
Sale price¥7,980
Colombian Trapiche Emerald 0.422ct Loose
Sale price¥18,800
Colombian emerald 0.153ct rough stone
Sale price¥6,980
Colombian emerald 0.499ct rough stone
Sale price¥14,800
Colombian emerald 0.443ct rough stone
Sale price¥8,800
Oregon Sunstone 0.272ct Loose
Sale price¥6,980
Benitoite 0.231ct loose
Sale price¥220,000
Benitoite 0.286ct loose
Sale price¥258,000
Benitoite 0.272ct loose stone (emerald cut)
Sale price¥248,000
Rhodochrosite from Detroit City, USA 3.1mm/0.154ct loose stone
Sale price¥19,800
Rhodochrosite from Detroit City, USA 3.2mm/0.150ct loose stone
Sale price¥19,800
Yellow sapphire 0.229ct loose stone
Sale price¥8,800
Sapphire 0.461ct loose stone
Sale price¥12,800
Spanish Andalusite 0.440ct loose stone
Sale price¥6,980
Spanish Andalusite 0.435ct loose stone
Sale price¥6,980
Colombian emerald 0.345ct loose stone (silky type)
Sale price¥15,800
Brazilian Imperial Topaz 0.413ct Loose Stone
Sale price¥9,800
Brazilian Imperial Topaz 0.402ct Loose Stone
Sale price¥9,800
Lepidocrocite in quartz 0.308ct loose
Sale price¥6,980
Mexican Fire Opal 0.290ct Loose (Faceted Cut)
Sale price¥6,980
Violet spinel 0.472ct loose
Sale price¥8,800
Yellow tourmaline 0.277ct loose
Sale price¥6,980
Afghanite 0.447ct loose stone from Afghanistan, Japan-Germany
Sale price¥5,980
Unheated Brazilian Paraiba tourmaline 0.110ct loose AIGS
Sale price¥258,000
Colombian emerald with pyrite 0.248ct rough stone
Sale price¥12,800
Brazilian Dumortierite in Quartz 0.387ct loose stone
Sale price¥3,980
Madagascar Pezzottaite 0.229ct loose stone
Sale price¥15,800
Russian Demantoid Garnet (Horsetail) 2.9mm/0.194ct Loose Stone
Sale price¥22,800
Green tourmaline 0.457ct loose stone
Sale price¥8,800
[12551250] Brazilian oil-free emerald 0.120ct loose stone
Sale price¥110,000
Oregon Sunstone 0.217ct loose
Sale price¥4,980
Oregon Sunstone 0.226ct loose
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.