Birthstone list
Sri Lankan Star Sapphire 5.0mm/0.897ct Loose Stone
Sale price¥8,800
Sri Lankan Star Sapphire 0.796ct Loose
Sale price¥9,800
Diamond (cabochon cut) 0.247ct loose (VS-SI class equivalent)
Sale price¥39,800
Zambian emerald 0.181ct loose stone
Sale price¥8,800
Mexican Cantera Opal 5.126ct Loose
Sale price¥25,800
Mexican Cantera Opal 4.602ct Loose
Sale price¥29,800
Mexican Cantera Opal 6.385ct Loose
Sale price¥18,800
Mexican Cantera Opal 1.842ct Loose
Sale price¥39,800
Mexican Cantera Opal 9.909ct Loose
Sale price¥39,800
Mexican Cantera Opal 5.238ct Loose
Sale price¥15,800
Mexican Cantera Opal 7.275ct Loose
Sale price¥35,800
Mexican Cantera Opal 5.261ct Loose
Sale price¥49,800
Madagascar sapphire 0.375ct loose stone
Sale price¥8,800
Pink tourmaline 0.333ct loose stone
Sale price¥9,800
Brazilian copper rutilated quartz 0.862ct loose stone
Sale price¥7,980
Sri Lankan sapphire 0.211ct loose stone
Sale price¥8,800
Zambian emerald 0.099ct loose stone
Sale price¥9,800
Zambian Emerald 3.7mm/0.215ct Loose Stone (Silky Emerald)
Sale price¥9,800
Sri Lankan Yellow Sapphire 0.324ct Loose
Sale price¥9,800
Sri Lankan Yellow Sapphire 0.189ct Loose
Sale price¥5,980
Sri Lankan Yellow Sapphire 0.392ct Loose
Sale price¥9,800
Mozambique Almandine Garnet 0.913ct Loose Stone
Sale price¥9,800
Mozambique Almandine Garnet 1.229ct Loose Stone
Sale price¥12,800
Mozambique Almandine Garnet 1.465ct Loose Stone
Sale price¥15,800
Mozambique Almandine Garnet 1.065ct Loose Stone
Sale price¥11,000
Mozambique Almandine Garnet 6.7mm/1.308ct Loose Stone
Sale price¥12,800
Tanzanian Rhodolite Garnet 1.329ct Loose Stone
Sale price¥15,800
Zambian emerald 0.210ct loose stone
Sale price¥8,800
Mexican Fire Opal 0.343ct Loose
Sale price¥15,800
Nigerian Spessartine Garnet 0.559ct Loose Stone
Sale price¥7,980
Thai Blue Sapphire 0.388ct Loose
Sale price¥9,800
Thai Blue Sapphire 0.740ct Loose
Sale price¥15,800
Tanzanian Rhodolite Garnet 0.794ct Loose Stone
Sale price¥9,800
Brazilian Green Tourmaline 0.549ct Loose Stone
Sale price¥9,800
Brazilian Green Tourmaline 0.457ct Loose Stone
Sale price¥15,800
Sri Lankan White Sapphire 4.0mm/0.275ct Loose
Sale price¥12,800
Sri Lankan pink sapphire 4.0mm/0.296ct loose stone
Sale price¥12,800
Zambian Canary Yellow Tourmaline 4.0mm/0.277ct Loose Stone
Sale price¥12,800
Mexican Fire Opal 4.8mm/0.336ct Loose
Sale price¥5,980
Brazilian Tourmaline 0.671ct Loose Stone
Sale price¥9,800
Brazilian Tourmaline 0.615ct Loose Stone
Sale price¥9,800
Tanzanite from Tanzania 0.609ct loose stone
Sale price¥15,800
Sri Lankan Blue Sapphire 0.344ct Loose
Sale price¥12,800
Madagascar White Sapphire 0.490ct Loose JTL
Sale price¥12,800
Madagascar Yellow Sapphire 0.571ct Loose
Sale price¥14,800
Madagascar pink sapphire 0.594ct 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.