opal

Opal is the birthstone for October. It is broadly divided into two types: "precious opal" which exhibits play-of-color effect, and "common opal" which does not. The impression changes greatly depending on whether there is a play-of-color effect or not, but the atmosphere also changes depending on the way the play-of-color appears and the pattern, and if you own one, you will want to collect many more, making it a collector's item.

Karatz GemMagazine
" opal "

Australian Black Opal 0.415ct Loose Sale price¥18,800

Australian Black Opal 0.548ct Loose Sale price¥18,800

Australian Black Opal 0.744ct Loose Gemstone Sale price¥18,800

Australian black opal loose stone, 0.618ct Sale price¥15,800

Australian black opal 1.311 ct loose stone Sale price¥18,800

Australian Black Opal 0.387ct Loose Sale price¥18,800

Australian Black Opal 0.605ct Loose Stone Sale price¥22,800

Australian Black Opal 0.754ct Loose Sale price¥22,800

Australian Black Opal 0.940ct Loose Sale price¥18,800

Australian Black Opal 1.539ct Loose Sale price¥15,800

Australian Black Opal 0.754ct Loose Sale price¥22,800

Australian Black Opal 0.768ct Loose Sale price¥25,800

Australian Black Opal 0.956ct Loose Stone Sale price¥39,800

Australian black opal 0.758ct loose stone Sale price¥35,800

Australian black opal 1.168ct loose stone Sale price¥39,800

[Rouge Cut] Mexican Fire Opal 1.458ct Loose Stone Sale price¥18,800

Australian shell opal 53.277ct rough stone Sale price¥59,800

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

Mexican Hyalite Opal 7.5mm/1.221ct Loose (Faceted Cut) Sale price¥12,800

Mexican fire opal, 0.733 ct, loose Sale price¥29,800

Mexican Opal 0.353ct Loose (Faceted Cut) Sale price¥9,800

[On sale May 30th at 10 PM] Mexican Fire Opal (faceted cut) 0.501ct Loose Sale price¥12,800

Mexican Fire Opal 0.459ct Loose Sale price¥18,800

Australian black opal 0.805ct loose stone Sale price¥39,800

Australian Iron Opal 17.439ct Loose Sale price¥18,800

Mexican Fire Opal 0.218ct Loose Stone (Faceted Cut) Sale price¥18,800

Mexican Fire Opal 0.277ct Loose (Faceted Cut) Sale price¥5,980

Mexican Fire Opal 0.472ct Loose (Star Cut, Faceted Cut) Sale price¥8,800

Mexican Fire Opal 0.564ct Loose (Faceted Cut) Sale price¥12,800

Mexican Opal 0.790ct Loose (Contrarus Opal, Faceted Cut) Sale price¥18,800

Mexican Opal (Faceted) 0.208ct Loose Stone Sale price¥9,800

Mexican Fire Opal 0.362ct Loose Sale price¥15,800

Mexican Fire Opal (Faceted) 4.5mm/0.218ct Loose Stone Sale price¥14,800

Opal 6mm/0.590ct loose (rose cut) Sale price¥5,980

Mexican cantera opal 17.528ct loose Sale price¥29,800

Mexican Fire Opal 0.191ct Loose (Faceted Cut) Sale price¥12,800

Australian black opal 0.758ct loose stone Sale price¥18,800

3.583ct Australian Black Opal Loose Stone (Double Sided) Sale price¥29,800

Mexican Water Opal 1.790ct Loose (Contralus Opal) Sale price¥29,800

Mexican Water Opal (Faceted) 0.215ct Loose (Contrarus Opal) Sale price¥18,800

1.175ct loose Australian white opal Sale price¥9,800

Mexican water opal 0.212ct loose (contrarus opal) Sale price¥18,800

Mexican Water Opal (Faceted) 0.402ct Loose (Contrarus Opal) Sale price¥12,800

[12/7 22:00 Sale] Mexican Egg-in Opal 0.381ct Loose Sale price¥18,800

KARATZ Custom Made

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.

KARATZ・Five Commitments

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.