Ethiopian Opal 24.319ct Rough Stone
Sale price¥19,800
Ethiopian Opal 18.871ct Rough Stone
Sale price¥18,800
Ethiopian Opal 15.845ct Rough Stone
Sale price¥15,800
Ethiopian Opal 14.344ct Rough Stone
Sale price¥14,800
Ethiopian Opal 12.442ct Rough Stone
Sale price¥12,800
Australian white opal 3.138ct loose
Sale price¥12,800
Australian white opal 1.830ct loose
Sale price¥9,800
Australian white opal 2.092ct loose stone
Sale price¥9,800
Ethiopian honeycomb opal 2.414ct loose stone
Sale price¥24,800
Mexican Hyalite Opal 6.1mm/0.810ct Loose
Sale price¥15,800
Mexican Hyalite Opal 6.0mm/0.676ct Loose Stone
Sale price¥15,800
Mexican Hyalite Opal 5.0mm/0.449ct Loose Stone
Sale price¥9,800
Australian black opal 3.298ct loose
Sale price¥29,800
Australian black opal 4.528ct loose
Sale price¥39,800
Australian black opal 2.591ct loose stone
Sale price¥39,800
Australian black opal 1.399ct loose
Sale price¥22,800
Australian black opal 0.599ct loose stone
Sale price¥18,800
Australian black opal 0.693ct loose stone
Sale price¥8,800
Australian black opal 3.159ct loose
Sale price¥39,800
[E_27 Yurakucho Marui Take-out] Australian black opal 0.540ct loose
Sale price¥14,800
Australian black opal 0.327ct loose stone
Sale price¥7,980
Mexican Fire Opal 1.135ct Loose
Sale price¥9,800
Mexican Fire Opal 1.031ct Loose
Sale price¥9,800
Mexican Cantera Opal 10.927ct Loose
Sale price¥18,800
Mexican Cantera Opal 19.732ct Loose
Sale price¥24,800
Synthetic Opal (Synthetic Black Opal) 1.467ct Loose
Sale price¥12,800
Synthetic Opal (Synthetic Black Opal) 10.910ct Loose
Sale price¥69,800
Synthetic Opal (Synthetic Black Opal) 1.532ct Loose
Sale price¥15,800
Mexican Opal (Faceted Cut) 1.052ct Loose
Sale price¥19,800
Mexican Opal (Faceted Cut) 0.640ct Loose
Sale price¥14,800
Mexican Opal (Faceted Cut) 0.550ct Loose
Sale price¥25,800
Mexican Fire Opal (Faceted) 6.1mm/0.450ct Loose
Sale price¥12,800
Mexican Fire Opal (Faceted Cut) 0.352ct Loose
Sale price¥9,800
Mexican Fire Opal 8.082ct Loose
Sale price¥39,800
Mexican Fire Opal 0.921ct Loose
Sale price¥14,800
Mexican Fire Opal 1.670ct Loose
Sale price¥29,800
Mexican Opal 1.028ct Loose
Sale price¥15,800
Mexican Fire Opal 0.934ct Loose
Sale price¥3,980
Mexican Opal 1.639ct Loose (Contralus Opal)
Sale price¥29,800
Mexican Opal 8.8mm/1.640ct Loose
Sale price¥29,800
[Sakura Incut] Mexican Opal 6mm/0.450ct Loose Patch
Sale price¥55,800
Mexican Opal 4.5mm/0.220ct Loose
Sale price¥5,980
Mexican Fire Opal 8.0mm/1.270ct Loose
Sale price¥29,800
[Sakura Shape] Mexican Opal 2.551ct Loose Patch
Sale price¥59,800
Synthetic Opal (Synthetic Black Opal) 0.723ct Loose
Sale price¥15,800
Synthetic Opal (Synthetic Black Opal) 0.651ct Loose
Sale price¥15,800
Mexican Fire Opal (Faceted) 1.961ct Loose
Sale price¥29,800
Mexican Cantera Opal 3.984ct Loose
Sale price¥29,800

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.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.
Written by KARATZ, book “Jewelry Illustrated Book”
The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.