Colombian emerald 0.499ct rough stone
Sale price¥14,800
Colombian emerald 0.443ct rough stone
Sale price¥8,800
[On Sale May 14th at 10 PM] Colombian Emerald 0.689ct Loose Stone
Sale price¥18,800
Green Spodumene 6.419ct loose stone
Sale price¥15,800
Tibetan bicolor andesine 2.657ct loose stone
Sale price¥19,800
Colombian emerald 0.345ct loose stone (silky type)
Sale price¥15,800
[Dandelion Cut] 7mm/1.412ct Sphene Loose Stone from Madagascar
Sale price¥59,800
3.020 ct Pakistani emerald in quartz loose gemstone
Sale price¥18,800
Indonesian Parasitic Peridot 0.276ct Loose Stone
Sale price¥98,000
Colombian emerald with pyrite 0.248ct rough stone
Sale price¥12,800
Bicolor Grossular Garnet (Bicolor Tsavorite) from Kenya, 0.761 ct, Loose
Sale price¥22,800
Bicolor Grossular Garnet from Kenya (Bicolor Tsavorite) 0.496ct Loose
Sale price¥14,800
Untreated Brazilian green tourmaline, 0.456 ct, loose (teal color)
Sale price¥13,800
Russian Demantoid Garnet (Horsetail) 2.9mm/0.194ct Loose Stone
Sale price¥22,800
Green tourmaline 0.621ct loose stone
Sale price¥9,800
Green tourmaline 0.457ct loose stone
Sale price¥8,800
[12551250] Brazilian oil-free emerald 0.120ct loose stone
Sale price¥110,000
Synthetic Moissanite 7.999ct loose stone
Sale price¥29,800
Synthetic Moissanite 8.931ct loose stone
Sale price¥45,800
Moss Agate 0.771ct loose
Sale price¥6,980
Moss Agate 1.115ct loose
Sale price¥8,800
Iridescent Tourmaline 3.107ct Loose Stone
Sale price¥37,800
Nigerian Star Enstatite 0.880ct Loose Stone
Sale price¥12,800
Tanzanian Kornerupine Cat's Eye 0.986ct Loose Stone
Sale price¥5,980
Moss agate 1.285ct loose stone
Sale price¥5,980
Green tourmaline 0.090ct loose stone
Sale price¥5,980
Moss agate 0.720ct loose stone
Sale price¥6,980
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
Russian Demantoid Garnet (Horsetail) 5.8mm/0.851ct Loose Stone
Sale price¥198,000
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
US Peridot 0.632ct Loose Stone
Sale price¥9,800
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
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.