Yellow diamond rough stone (makeable) 0.247ct rough stone
Sale price¥22,800
Mexican cantera opal 15.542ct loose
Sale price¥19,800
Mexican cantera opal 9.422ct loose
Sale price¥29,800
Mexican cantera opal 7.563ct loose
Sale price¥19,800
Australian boulder opal 1.730ct loose
Sale price¥9,800
Australian boulder opal 6.980ct loose
Sale price¥7,980
Purple Diamond 0.070ct Loose (FANCY VIVID PINK PURPLE, I-1)
Sale price¥188,000
Sri Lankan star sapphire 21.730ct loose
Sale price¥69,800
Australian boulder opal 4.470ct loose
Sale price¥29,800
Yellow opal 17.283ct loose
Sale price¥34,800
Mexican Fire Opal 4.5mm/0.244ct Loose
Sale price¥12,800
Diamond 0.052ct loose (trapeze cut, VS class equivalent)
Sale price¥8,800
Colombian emerald cat's eye 0.110ct loose
Sale price¥12,800
[Camellia cut] Opal 14mm/5.283ct loose with patch
Sale price¥98,000
Australian opal 0.286ct loose
Sale price¥6,980
Pink sapphire 0.225ct loose
Sale price¥6,980
Amazon green opal 1.120ct loose
Sale price¥5,980
Australian boulder opal 3.695ct loose
Sale price¥15,800
Sri Lankan star sapphire 1.487ct loose
Sale price¥12,800
Unheated Ruby from Myanmar 0.433ct Ruth Japanese-German Edition
Sale price¥59,800
Australian boulder opal 2.470ct loose
Sale price¥8,800
Australian boulder opal 4.729ct loose
Sale price¥19,800
Mexican Fire Opal 1.150ct Loose
Sale price¥39,800
Colombian pyrite in emerald 4.592ct loose
Sale price¥128,000
Green sapphire 0.518ct loose (teal green)
Sale price¥9,800
Color change sapphire 0.946ct loose
Sale price¥39,800
Pink sapphire from Mozambique 0.213ct loose (hot pink sapphire)
Sale price¥14,800
Unheated silky pink sapphire from Vietnam 0.426ct loose
Sale price¥18,800
Montana Sapphire 3mm/0.155ct loose
Sale price¥23,800
Myanmar trapichel ruby 0.179ct rough stone
Sale price¥3,980
Myanmar trapichel ruby 0.160ct rough stone
Sale price¥5,980
Myanmar trapichel ruby 0.152ct rough stone
Sale price¥4,980
Trapichel ruby from Myanmar 0.202ct rough stone
Sale price¥3,980
Myanmar trapichel ruby 0.261ct rough stone
Sale price¥4,980
Mexican Fire Opal 4.2mm/0.182ct Loose
Sale price¥8,800
Sapphire from Madagascar 4.5mm/0.414ct loose
Sale price¥16,800
Sapphire from Madagascar 4.3mm/0.398ct loose
Sale price¥15,800
Pink sapphire from Mozambique 0.213ct loose (hot pink sapphire)
Sale price¥14,800
Pink diamond 2.2mm/0.044ct loose (FANCY PURPLE PINK, I-1)
Sale price¥39,800
Colombian trapiche emerald (reverse trapiche) 0.072ct loose
Sale price¥8,800
Colombian trapiche emerald (reverse trapiche) 0.095ct loose
Sale price¥8,800
Colombian trapiche emerald (reverse trapiche) 0.152ct loose
Sale price¥15,800
Colombian trapiche emerald (reverse trapiche) 0.113ct loose
Sale price¥14,800
Colombian trapiche emerald (reverse trapiche) 0.196ct loose
Sale price¥22,800
Colombian trapiche emerald (reverse trapiche) 0.099ct loose
Sale price¥11,800
Colombian trapiche emerald (reverse trapiche) 0.074ct loose
Sale price¥11,000
Colombian trapiche emerald (reverse trapiche) 0.108ct loose
Sale price¥13,800
Colombian trapiche emerald (reverse trapiche) 0.084ct loose
Sale price¥9,800
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.