Australian boulder opal 6.980ct loose
Sale price¥6,980
Mexican cantera opal 7.563ct loose
Sale price¥15,800
Mexican cantera opal 9.422ct loose
Sale price¥25,800
Mexican cantera opal 15.542ct loose
Sale price¥15,800
Synthetic Opal 0.856ct Loose (Synthetic Water Opal)
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.343ct Loose
Sale price¥12,800
![[12/7 22:00 Sale] Mexican Egg-in Opal 0.381ct Loose](http://store.karatz.jp/cdn/shop/files/PC053061_853dfbb9-2bb5-4b4f-abbd-aef4b76d3dd5.jpg?v=1766553969&width=4000)
[12/7 22:00 Sale] Mexican Egg-in Opal 0.381ct Loose
Sale price¥18,800
Mexican Water Opal (Faceted) 0.402ct Loose (Contrarus Opal)
Sale price¥12,800
Unheated silky pink sapphire from Vietnam 0.247ct loose
Sale price¥8,800
Mexican water opal 0.212ct loose (contrarus opal)
Sale price¥18,800
Bicolor sapphire from Madagascar 0.198ct loose
Sale price¥7,980
Bicolor sapphire from Madagascar 0.265ct loose
Sale price¥16,800
Bicolor sapphire from Madagascar 0.252ct loose
Sale price¥9,800
Mint green sapphire 0.348ct loose
Sale price¥9,800
1.175ct loose Australian white opal
Sale price¥9,800
Colombian emerald 3.3mm/0.131ct loose stone
Sale price¥25,800
Mexican Water Opal (Faceted) 0.215ct Loose (Contrarus Opal)
Sale price¥18,800
Colombian emerald 0.091ct loose stone
Sale price¥15,800
Sri Lankan Twin Star Sapphire 3.928ct Loose
Sale price¥128,000
Sri Lankan triple star sapphire 1.743ct loose stone
Sale price¥128,000
Sri Lankan Twin Star Sapphire 5.225ct Loose
Sale price¥98,000
0.604ct rough diamond
Sale price¥12,800
Diamond rough (makeable) 0.204ct rough
Sale price¥39,800
Rough diamond (sawable) 0.466ct rough diamond (with trigon)
Sale price¥98,000
Mexican Water Opal 1.790ct Loose (Contralus Opal)
Sale price¥29,800
Sri Lankan bicolor sapphire 0.586ct loose stone
Sale price¥39,800
3.583ct Australian Black Opal Loose Stone (Double Sided)
Sale price¥29,800
Australian black opal 0.758ct loose stone
Sale price¥18,800
Sri Lankan Bicolor Sapphire 0.607ct Loose Stone
Sale price¥15,800
0.257ct Unheated Silky Pink Sapphire from Vietnam
Sale price¥12,800
South African gray diamond (makeable) 0.169ct rough stone
Sale price¥14,800
South African yellow diamond (makeable) 0.202ct rough stone
Sale price¥15,800
Bicolor Benitoite 0.130ct loose (emerald cut)
Sale price¥65,800
Uncut Canadian diamond (sawable) 0.103ct
Sale price¥29,800
Mexican Fire Opal 0.191ct Loose (Faceted Cut)
Sale price¥12,800
Blue Sapphire 5.0mm/0.552ct Loose Stone
Sale price¥18,800
Madagascar Purple Sapphire 4.2mm/0.418ct Loose
Sale price¥19,800
Mexican cantera opal 17.528ct loose
Sale price¥29,800
Silky diamond 2.8mm/0.097ct loose
Sale price¥9,800
Silky diamond 2.7mm/0.086ct loose
Sale price¥9,800
Benitoite 0.091ct loose (emerald cut)
Sale price¥25,800
Canadian rough diamond (sawable) 0.096ct rough with trigon
Sale price¥29,800
Opal 6mm/0.590ct loose (rose cut)
Sale price¥5,980
South African yellow diamond (makeable) 0.159ct rough stone
Sale price¥12,800
Bicolor star sapphire from Myanmar 0.920ct loose
Sale price¥39,800
Colombian emerald 3.1mm/0.093ct loose stone
Sale price¥22,800
Mexican Fire Opal (Faceted) 4.5mm/0.218ct Loose Stone
Sale price¥14,800
Pigeon Blood Ruby 0.250ct Loose
Sale price¥79,800
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.