Yellow sapphire 0.445ct loose
Sale price¥8,800
Yellow sapphire 0.294ct loose
Sale price¥8,800
Yellow sapphire 0.315ct loose
Sale price¥6,980
Yellow sapphire 0.464ct loose
Sale price¥12,800
Montana Sapphire 0.254ct loose
Sale price¥9,800
American Herkimer Diamond (Rock Crystal) 5.5mm/0.534ct Loose
Sale price¥8,800
American Herkimer Diamond (Rock Crystal) 5.3mm/0.594ct Loose
Sale price¥8,800
Pt900 Benitoite (Ice Blue) 0.17ct Pink Diamond Ring
Sale price¥148,000
Australian shell opal (shell opal) 96.177ct rough stone
Sale price¥69,800
Montana Sapphire 0.235ct loose (yellow sapphire)
Sale price¥8,800
Montana Sapphire 0.458ct Loose (Bi-Color Sapphire)
Sale price¥14,800
Montana Sapphire 0.515ct loose (bicolor sapphire)
Sale price¥19,800
Montana Sapphire 0.361ct loose (yellow sapphire)
Sale price¥14,800
Montana Sapphire 0.397ct loose (bicolor sapphire)
Sale price¥15,800
Montana Sapphire 0.449ct loose (bicolor sapphire)
Sale price¥17,800
Mexican Fire Opal 0.277ct Loose (Faceted Cut)
Sale price¥5,980
Mexican Fire Opal 0.472ct Loose (Star Cut, Faceted Cut)
Sale price¥9,800
Mexican Fire Opal 0.564ct Loose (Faceted Cut)
Sale price¥15,800
Colombian trapiche emerald (reverse trapiche) 0.457ct rough stone
Sale price¥36,800
Mexican Fire Opal 0.290ct Loose (Faceted Cut)
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.459ct Loose
Sale price¥12,800
Mexican Opal 0.502ct Loose (Faceted Cut)
Sale price¥12,800
Mexican Opal 0.790ct Loose (Contrarus Opal, Faceted Cut)
Sale price¥18,800
Twin star sapphire from Sri Lanka 3.003ct loose (Violet star sapphire)
Sale price¥59,800
Twin star sapphire from Sri Lanka 3.858ct loose (black star sapphire)
Sale price¥59,800
Twin star sapphire from Sri Lanka 2.523ct loose
Sale price¥98,000
Mexican Hyalite Opal 0.774ct Loose (Faceted Cut)
Sale price¥8,800
Mexican Hyalite Opal 7.5mm/1.221ct Loose (Faceted Cut)
Sale price¥14,800
Pt900 benitoite 0.135ct/diamond ring
Sale price¥128,000
Bicolor star sapphire from Myanmar 0.920ct loose
Sale price¥39,800
Gray diamond 1.247ct loose
Sale price¥228,000
Gray diamond 0.618ct loose
Sale price¥128,000
Mexican Opal 1.205ct Loose (Contrarus Opal, Faceted Cut)
Sale price¥29,800
Color change sapphire 0.526ct loose
Sale price¥6,980
Color change sapphire 0.453ct loose
Sale price¥5,980
Copper rutilated quartz 1.135ct loose
Sale price¥5,980
Copper rutilated quartz 1.165ct loose
Sale price¥5,980
Copper rutilated quartz 1.747ct loose
Sale price¥6,980
Pt900 benitoite 0.152ct/diamond 0.58ct ring
Sale price¥188,000
Colombian trapiche emerald 13.466ct loose
Sale price¥398,000
Unheated silky pink sapphire from Vietnam 0.202ct loose
Sale price¥8,800
Benitoite 0.091ct loose (emerald cut)
Sale price¥29,800
Australian black opal 0.310ct loose
Sale price¥8,800
Diamond 0.534ct rough stone
Sale price¥9,800
Silky diamond 2.8mm/0.097ct loose
Sale price¥14,800
Silky sapphire from Sri Lanka 1.086ct loose
Sale price¥15,800
Silky sapphire from Sri Lanka 0.632ct loose
Sale price¥8,800
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.