Custom Cut
Bicolor Zoisite 1.100ct Loose Stone (Bicolor Tanzanite)
Sale price¥18,800
Lavender Tanzanite 0.784ct loose stone
Sale price¥12,800
Sky blue topaz 1.051ct loose stone
Sale price¥8,800
Bicolor tourmaline 1.329ct loose
Sale price¥9,800
Bicolor tourmaline 0.429ct loose
Sale price¥5,980
Bicolor Tourmaline 0.378ct Loose Stone (Hexagonal Cut)
Sale price¥8,800
Pink tourmaline 0.819ct loose
Sale price¥9,800
Pink tourmaline 0.539ct loose stone (heart shape)
Sale price¥9,800
[On sale May 30th at 10 PM] Mongolian Andesine 0.464ct Loose Stone
Sale price¥9,800
Pink tourmaline 0.845ct loose stone
Sale price¥12,800
Yellow Opal 0.372ct Loose (Faceted Cut)
Sale price¥8,800
Pink spinel 0.713ct loose stone
Sale price¥8,800
Brazilian Quartz in Quartz 15.373ct Loose Stone
Sale price¥18,800
Tanzanian Kornerupine 0.213ct loose stone
Sale price¥12,800
Madagascar Green Sapphire 0.253ct Loose
Sale price¥9,800
Madagascar Blue Sapphire 0.302ct Loose
Sale price¥15,800
Madagascar pink sapphire 0.346ct loose stone
Sale price¥15,800
Madagascar pink sapphire 0.243ct loose stone
Sale price¥8,800
Sri Lankan Blue Sapphire 0.519ct Loose
Sale price¥14,800
Tanzania Green Zoisite 0.709ct Loose Stone
Sale price¥16,800
Kunzite from Afghanistan 12mm/8.834ct loose stone
Sale price¥39,800
Synthetic Moissanite 8.679ct loose stone
Sale price¥29,800
[Cat cut] Brazilian dendritic agate 0.774ct loose stone
Sale price¥6,980
Almandine Garnet 0.814ct Loose Stone
Sale price¥7,980
Almandine Garnet 1.049ct Loose Stone
Sale price¥9,800
Mozambique Aquamarine 0.216ct Loose Stone
Sale price¥6,980
American Peridot 0.528ct Loose Stone
Sale price¥8,800
Aquamarine 0.327ct loose stone
Sale price¥9,800
Yellow sapphire 0.287ct loose stone
Sale price¥8,800
Pink sapphire 0.202ct loose stone
Sale price¥8,800
Mexican Opal 9.6mm/1.803ct Loose (Contralus Opal)
Sale price¥49,800
Unheated Mozambique Ruby 2.7mm/0.135ct Loose
Sale price¥19,800
Pink tourmaline 1.157ct loose stone
Sale price¥12,800
[On sale June 7th at 10 PM] Australian Boulder Opal 41.775ct Loose Stone
Sale price¥19,800
[On sale June 7, 10 PM JST] Australian Boulder Opal 12.216ct Loose Stone
Sale price¥15,800
Salt and pepper diamond 0.446ct loose
Sale price¥39,800
Pink tourmaline 0.466ct loose
Sale price¥8,800
Tanzania Zoisite 0.278ct loose stone
Sale price¥7,980
Zoisite 0.216ct loose stone (heart shape)
Sale price¥7,980
Zoisite 0.162ct loose stone (heart shape)
Sale price¥7,980
Zoisite 0.247ct loose stone (heart shape)
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.