Australian black opal 1.168ct loose stone
Sale price¥39,800
18K Yellow Gold Ruby Ring (Pigeon Blood Color)
Sale price¥128,000
[Rouge Cut] Mexican Fire Opal 1.458ct Loose Stone
Sale price¥18,800
Madagascar Blue Sapphire 0.347ct Loose Stone with Appraisal Report
Sale price¥25,800
Zimbabwe Green Diamond Rough (Sawable) 0.428ct Rough Stone with Trigon
Sale price¥158,000
Australian shell opal 53.277ct rough stone
Sale price¥59,800
Yellow sapphire 0.294ct loose
Sale price¥8,800
Yellow sapphire 0.464ct loose
Sale price¥9,800
Montana Sapphire 0.515ct loose (bicolor sapphire)
Sale price¥15,800
Unheated Pigeon Blood Ruby 0.380ct Loose Stone AIGS
Sale price¥79,800
Mexican egg-in opal 3.646ct loose stone
Sale price¥25,800
Mexican Egg-in-Opal 3.195ct Loose Stone
Sale price¥19,800
Mexican egg-in opal 4.879ct loose stone
Sale price¥29,800
Mexican egg-in opal 2.125ct loose stone
Sale price¥15,800
Mexican fire opal 2.499ct loose stone
Sale price¥18,800
Zimbabwe Green Diamond Rough (Sawable) 0.402ct Rough Stone with Trigon
Sale price¥148,000
Montana Sapphire 0.397ct loose (bicolor sapphire)
Sale price¥12,800
Mexican Hyalite Opal 7.5mm/1.221ct Loose (Faceted Cut)
Sale price¥12,800
Copper rutilated quartz 1.135ct loose
Sale price¥5,980
Copper rutilated quartz 1.165ct loose
Sale price¥5,980
Colombian trapiche emerald 13.466ct loose
Sale price¥398,000
Yellow diamond 0.291ct loose (FANCY INTENSE ORANGY YELLOW, SI2)
Sale price¥59,800
Yellow diamond 0.153ct loose (FANCY INTENSE YELLOW ORANGE, SI1)
Sale price¥35,800
Diamond 0.051ct loose (trapeze cut, VS class equivalent)
Sale price¥7,980
Synthetic Blue Sapphire 1.551ct Loose Stone (Synthetic Sapphire)
Sale price¥15,800
Synthetic Blue Sapphire 2.012ct Loose (Synthetic Sapphire)
Sale price¥25,800
Mexican fire opal, 0.733 ct, loose
Sale price¥29,800
Mexican Opal 0.353ct Loose (Faceted Cut)
Sale price¥9,800
Diamond 0.244ct Loose Stone (F, VS2, Flanders Cut)
Sale price¥39,800
0.209ct Yellow Diamond Loose (Fancy Deep Brownish Yellow, VVS-2)
Sale price¥49,800
0.174ct Brown Diamond Loose (FANCY DARK BROWN, SI-2)
Sale price¥25,800
Mexican Fire Opal (Faceted) 0.501ct Loose Stone
Sale price¥12,800
0.175ct loose hot pink sapphire from Mozambique
Sale price¥15,800
Mexican Fire Opal 0.459ct Loose
Sale price¥18,800
Colombian emerald 0.155ct loose stone
Sale price¥29,800
Sri Lankan Blue Sapphire (Ice Blue) 0.272ct Loose
Sale price¥12,800
Australian black opal 0.805ct loose stone
Sale price¥39,800
Colombian mint-color emerald, 5.1mm/0.517ct loose stone
Sale price¥12,800
Diamond rough (makeable) 0.284ct rough
Sale price¥12,800
Colombian pyrite emerald 2.380ct rough stone
Sale price¥39,800
Colombian emerald 8.90ct rough stone
Sale price¥69,800
Australian Iron Opal 17.439ct Loose
Sale price¥18,800
0.338ct Canadian Green Diamond Rough (Sawable) - With Trigons
Sale price¥128,000
Angola Green Diamond Rough (Sawable) 0.528ct Rough (with Trigon)
Sale price¥198,000
Colombian oil-free emerald 0.220ct loose GIA
Sale price¥248,000
Colombian oil-free emerald 0.510ct loose GIA
Sale price¥598,000
Colombian pyrite emerald 8.044ct loose stone
Sale price¥188,000
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.