Green tourmaline 0.637ct loose
Sale price¥8,800
American Oregon Sunstone 7.0mm/1.494ct Loose
Sale price¥35,800
USA-origin Oregon Sunstone, 7.0mm/1.356ct loose
Sale price¥35,800
Brazilian alexandrite 0.070ct loose
Sale price¥39,800
Synthetic Alexandrite 4.3mm/0.430ct Loose Stone
Sale price¥12,800
Zimbabwe Green Diamond Rough (Sawable) 0.428ct Rough Stone with Trigon
Sale price¥158,000
Zimbabwe Green Diamond Rough (Sawable) 0.402ct Rough Stone with Trigon
Sale price¥148,000
Montana Sapphire 0.397ct loose (bicolor sapphire)
Sale price¥12,800
British Rogerley Fluorite 3.750 ct loose stone
Sale price¥8,800
American Peridot 0.643ct Loose Stone
Sale price¥12,800
Australian Prehnite 2.051ct loose stone
Sale price¥8,800
Tanzanian bicolor zoisite 2.322ct loose stone
Sale price¥69,800
Australian Prehnite 2.666ct loose stone
Sale price¥12,800
Synthetic Alexandrite 0.338ct loose stone
Sale price¥12,800
Australian Prehnite 0.908ct Loose
Sale price¥7,980
Colombian emerald 0.155ct loose stone
Sale price¥29,800
Tanzanian Bekiri Blue Garnet (Color Change Garnet) 0.102ct Loose Stone
Sale price¥12,800
0.796ct Loose Bicolor Grossular Garnet from Tanzania
Sale price¥39,800
Myanmar Jade (Jadeite) 0.525ct Loose Stone
Sale price¥8,800
Colombian mint-color emerald, 5.1mm/0.517ct loose stone
Sale price¥12,800
Colombian emerald 8.90ct rough stone
Sale price¥69,800
Zambian bicolor tourmaline 4.142ct loose stone
Sale price¥98,000
0.338ct Canadian Green Diamond Rough (Sawable) - With Trigons
Sale price¥128,000
Angola Green Diamond Rough (Sawable) 0.528ct Rough (with Trigon)
Sale price¥198,000
Colombian pyrite emerald 8.044ct loose stone
Sale price¥188,000
0.451 ct loose Colombian emerald
Sale price¥39,800
Kenyan Idocrase 0.650ct Loose
Sale price¥12,800
0.097ct Grandidierite Loose Stone from Madagascar
Sale price¥29,800
Mongolian Color Change Andesine 0.882ct Loose Stone
Sale price¥19,800
Australian Prehnite 2.779 ct Loose Stone
Sale price¥12,800
Cambodian blue zircon 1.126ct loose stone
Sale price¥18,800
Colombian emerald 0.159ct loose stone
Sale price¥47,800
Paraiba tourmaline from Brazil 0.162ct loose
Sale price¥69,800
Tanzanian Zoisite 5.5mm/0.689ct Loose
Sale price¥18,800
Tanzanian Lavender Tanzanite 0.391ct Loose Stone
Sale price¥12,800
Tanzanian Kornerupine 0.132ct Loose Stone
Sale price¥9,800
Russian Demantoid Garnet (Horsetail Inclusions) 4.7mm/0.445ct Loose
Sale price¥69,800
Colombian emerald 3.1mm/0.093ct loose stone
Sale price¥22,800
Tanzanian Green Zoisite 0.354ct Loose Stone
Sale price¥12,800
Green zoisite from Tanzania, 0.262 ct loose
Sale price¥9,800
USA origin Peridot, 0.496 ct, 2-stone matched pair, loose
Sale price¥12,800
American Peridot 0.969ct Loose Stone
Sale price¥25,800
Tanzanian Bicolor Grossular Garnet 2.997ct Loose Stone
Sale price¥69,800
Brazilian green tourmaline 1.233 ct loose stone
Sale price¥69,800
Kenyan Tsavorite 1.026ct Loose Stone
Sale price¥98,000
Colombian emerald 0.105ct loose
Sale price¥31,800
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.