Tanzanian Zoisite 5.5mm/0.689ct Loose
Sale price¥18,800
Tibetan Andesine 0.320ct Loose Stone
Sale price¥9,800
Tanzanian Lavender Tanzanite 0.391ct Loose Stone
Sale price¥12,800
Pigeon Blood Ruby 0.490ct Loose
Sale price¥128,000
Pigeon Blood Ruby 0.250ct Loose
Sale price¥79,800
Brazilian Sunstone 5.1mm/0.532ct Loose Stone (Rose Quartz)
Sale price¥5,980
Brazilian Sunstone 6.2mm/0.896ct Loose (Rose Quartz)
Sale price¥5,980
Brazilian Medusa Quartz (Paraiba Quartz) 3.9mm/0.237ct Loose
Sale price¥15,800
0.343 ct Tanzanite Loose Gemstone from Tanzania
Sale price¥8,800
0.296ct Loose Tanzanite from Tanzania
Sale price¥12,800
Tanzanian Kornerupine 0.132ct Loose Stone
Sale price¥9,800
Cambodian Blue Zircon 0.440ct Loose
Sale price¥9,800
Loose Oregon Sunstone from the USA, 0.318ct
Sale price¥6,980
Afghan Diaspore 0.239ct Loose
Sale price¥15,800
Mexican Fire Opal (Faceted) 4.5mm/0.218ct Loose Stone
Sale price¥14,800
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
Pakistani vanadium sphene 0.759ct loose
Sale price¥49,800
Johachidolite from Myanmar 0.332ct loose
Sale price¥29,800
Bicolor star sapphire from Myanmar 0.920ct loose
Sale price¥39,800
Green tourmaline 0.389ct loose
Sale price¥8,800
Cornell pin from Tanzania 0.246ct loose
Sale price¥39,800
Tanzanian Kornerupine 0.277ct loose stone
Sale price¥29,800
Bicolor Euclase from Zimbabwe 0.211ct loose
Sale price¥79,800
Alexandrite cat's eye from Sri Lanka 0.947ct loose
Sale price¥18,800
South African yellow diamond (makeable) 0.159ct rough stone
Sale price¥12,800
Bekily Blue Garnet from Madagascar (color change garnet) 0.297ct loose
Sale price¥19,800
Opal 6mm/0.590ct loose (rose cut)
Sale price¥5,980
Canadian rough diamond (sawable) 0.096ct rough with trigon
Sale price¥29,800
Unheated silky pink sapphire from Vietnam 0.202ct loose
Sale price¥6,980
Bicolor Euclase from Zimbabwe 0.375ct Ruth Japanese-German Edition
Sale price¥98,000
Benitoite 0.091ct loose (emerald cut)
Sale price¥25,800
Myanmar orange jade (jade) 0.584ct loose
Sale price¥4,980
Brazilian unheated particolor Paraiba tourmaline 0.84ct loose GIA
Sale price¥2,580,000
Rhodochrosite 0.331ct loose from Detroit City
Sale price¥25,800
Silky diamond 2.7mm/0.086ct loose
Sale price¥9,800
Silky diamond 2.8mm/0.097ct loose
Sale price¥9,800
Chrysoberyl cat's eye from Sri Lanka 0.340ct loose
Sale price¥9,800
Tanzanian Green Zoisite 0.354ct Loose Stone
Sale price¥12,800
Green zoisite from Tanzania, 0.262 ct loose
Sale price¥9,800
Madagascar Purple Sapphire 4.2mm/0.418ct Loose
Sale price¥19,800
Unheated Vietnamese Silky Pink Sapphire 0.291ct Loose Stone
Sale price¥12,800
Blue Sapphire 5.0mm/0.552ct Loose Stone
Sale price¥18,800
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 Mandarin Garnet 0.352ct Loose Stone
Sale price¥18,800
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.