Montana Sapphire 0.397ct loose (bicolor sapphire)
Sale price¥12,800
Zimbabwe Green Diamond Rough (Sawable) 0.402ct Rough Stone with Trigon
Sale price¥148,000
Mexican fire opal 2.499ct loose stone
Sale price¥18,800
Mexican egg-in opal 2.125ct loose stone
Sale price¥15,800
Mexican egg-in opal 4.879ct loose stone
Sale price¥29,800
Mexican Egg-in-Opal 3.195ct Loose Stone
Sale price¥19,800
Mexican egg-in opal 3.646ct loose stone
Sale price¥25,800
Unheated Pigeon Blood Ruby 0.380ct Loose Stone AIGS
Sale price¥79,800
Montana Sapphire 0.361ct loose (yellow sapphire)
Sale price¥12,800
Montana Sapphire 0.515ct loose (bicolor sapphire)
Sale price¥15,800
Yellow sapphire 0.464ct loose
Sale price¥9,800
Yellow sapphire 0.294ct loose
Sale price¥8,800
Australian shell opal 53.277ct rough stone
Sale price¥59,800
Zimbabwe Green Diamond Rough (Sawable) 0.428ct Rough Stone with Trigon
Sale price¥158,000
Madagascar Blue Sapphire 0.347ct Loose Stone with Appraisal Report
Sale price¥25,800
[Rouge Cut] Mexican Fire Opal 1.458ct Loose Stone
Sale price¥18,800
18K Yellow Gold Ruby Ring (Pigeon Blood Color)
Sale price¥128,000
18K Yellow Gold Colombian Emerald Ring
Sale price¥128,000
Australian black opal 1.168ct loose stone
Sale price¥39,800
Australian black opal 0.758ct loose stone
Sale price¥35,800
Australian Black Opal 0.768ct Loose
Sale price¥25,800
Australian Black Opal 0.754ct Loose
Sale price¥22,800
Australian Black Opal 1.539ct Loose
Sale price¥15,800
Australian Black Opal 0.940ct Loose
Sale price¥18,800
Australian Black Opal 0.754ct Loose
Sale price¥22,800
Australian Black Opal 0.605ct Loose Stone
Sale price¥22,800
Australian Black Opal 0.387ct Loose
Sale price¥18,800
Australian black opal 1.311 ct loose stone
Sale price¥18,800
Australian black opal loose stone, 0.618ct
Sale price¥15,800
Australian Black Opal 0.744ct Loose Gemstone
Sale price¥18,800
Australian Black Opal 0.548ct Loose
Sale price¥18,800
Australian Black Opal 0.415ct Loose
Sale price¥18,800
Australian black opal, 0.336ct loose stone
Sale price¥19,800
Australian black opal, 0.666ct loose
Sale price¥12,800
[On sale May 13 at 10 PM] Australian Black Opal 0.525ct Loose Stone
Sale price¥12,800
[On sale 10 PM on May 6] Australian Black Opal 0.509ct Loose Stone
Sale price¥14,800
[On Sale May 3, 10 PM JST] Australian Black Opal 0.385ct Loose Gemstone
Sale price¥18,800
Australian Black Opal 0.362ct Loose
Sale price¥18,800
Australian Black Opal 1.705ct Loose
Sale price¥12,800
[On sale May 3, 10 PM JST] Australian Black Opal 0.667ct Loose Stone
Sale price¥12,800
[On sale May 3rd, 10 PM JST] Australian Black Opal Loose Stone 0.529ct
Sale price¥15,800
Australian Black Opal 0.448ct Loose Stone
Sale price¥15,800
Australian Black Opal 0.377 ct Loose
Sale price¥15,800
Australian Black Opal 0.329ct Loose
Sale price¥14,800
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.