Brazilian Dumortierite in Quartz 0.699ct Loose Stone
Sale price¥6,980
Brazilian Dumortierite in Quartz 0.910ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.642ct Loose Stone
Sale price¥8,800
Synthetic Alexandrite 4.3mm/0.430ct Loose Stone
Sale price¥12,800
Australian rainbow lattice sunstone 0.587ct loose
Sale price¥4,980
Mali Garnet (Grossular/Andradite Garnet) 0.675ct Loose Stone
Sale price¥15,800
Unheated Pigeon Blood Ruby 0.380ct Loose Stone AIGS
Sale price¥79,800
Brazilian Dumortierite in Quartz 0.849ct Loose Gemstone
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.867ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.880ct Loose Stone (Faceted Cut)
Sale price¥9,800
0.787 ct faceted Dumortierite in Quartz from Brazil
Sale price¥7,980
Brazilian Dumortierite in Quartz 0.690ct Loose Stone (Faceted Cut)
Sale price¥6,980
Brazilian Dumortierite in Quartz 1.112ct Loose Gemstone (Faceted Cut)
Sale price¥11,000
Brazilian Dumortierite in Quartz 0.937ct Loose (Faceted)
Sale price¥9,800
South African Sugilite 0.908ct loose stone
Sale price¥14,800
Synthetic Rutile 0.554ct Loose
Sale price¥8,800
Mexican Opal 0.353ct Loose (Faceted Cut)
Sale price¥9,800
US Peridot 0.632ct Loose Stone
Sale price¥9,800
Mozambique Almandine Garnet 4.8nmm/0.545ct Loose Stone
Sale price¥8,800
0.521ct Loose Brazilian London Blue Topaz
Sale price¥6,980
Tanzanian Color Change Garnet 0.607ct Loose Stone
Sale price¥11,000
Synthetic Blue Sapphire 0.886ct Loose (Synthetic Sapphire)
Sale price¥8,800
Synthetic Rutile 0.768ct Loose
Sale price¥12,800
Cambodian Colorless Zircon 1.121ct Loose Stone
Sale price¥18,800
YAG (Yttrium Aluminum Garnet) 0.598ct loose stone
Sale price¥9,800
Tanzanian Tanzanite, 5.0mm/0.558ct Loose Stone
Sale price¥15,800
Tanzanian Rhodolite Garnet 0.733ct Loose Stone
Sale price¥9,800
0.796ct Loose Bicolor Grossular Garnet from Tanzania
Sale price¥39,800
Brazilian Santa Maria Aquamarine 0.669ct Loose Stone
Sale price¥39,800
Myanmar Jade (Jadeite) 0.525ct Loose Stone
Sale price¥8,800
Zimbabwean Apatite (UV Type) 0.703ct Loose Stone
Sale price¥7,980
Congo Cobalt Calcite 1.439ct Loose Stone
Sale price¥18,800
Mexican Fire Opal 0.218ct Loose Stone (Faceted Cut)
Sale price¥18,800
Unheated Pigeon Blood Ruby 5.0mm/0.520ct Loose Stone AIGS
Sale price¥128,000
Kenyan Idocrase 0.650ct Loose
Sale price¥12,800
Tibetan Andesine 0.348ct Loose Stone
Sale price¥12,800
Indian Parrot Chrysoberyl 4.5mm/0.375ct Loose Gemstone
Sale price¥15,800
Indian Parrot Chrysoberyl 4.2mm/0.347ct Loose Stone
Sale price¥12,800
0.933 ct loose Mozambican rubellite
Sale price¥25,800
Mexican Opal (Faceted) 0.208ct Loose Stone
Sale price¥9,800
Mexican Fire Opal 0.362ct Loose
Sale price¥15,800
Loose 0.498ct 5.0mm Oregon Sunstone from the USA
Sale price¥15,800
Tanzanian Tanzanite 4.3mm/0.311ct Loose Stone
Sale price¥12,800
Tanzanite 0.579ct loose stone from Tanzania
Sale price¥5,980
Tibetan Andesine 0.320ct Loose Stone
Sale price¥9,800
Pigeon Blood Ruby 0.490ct Loose
Sale price¥128,000
Mexican Fire Opal (Faceted) 4.5mm/0.218ct Loose Stone
Sale price¥14,800
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.