[Cat cut] Bankacha sapphire 6mm/0.812ct loose
Sale price¥14,800
South African green diamond rough (makeable) 0.298ct loose
Sale price¥79,800
Colombian Trapiche Emerald (Reverse Trapiche) 0.329ct Rough Stone
Sale price¥39,800
Cantera opal 14.581ct loose
Sale price¥45,800
[Colorful] Clover diamond 0.12ct pendant (necklace)《0.120ct/E/VS2/EX》
Sale price¥69,800
[Colorful] Diamond 0.114ct pendant (necklace)《0.114ct/G/VS1/VG》
Sale price¥55,800
[Colorful] K18WG diamond 0.50ct pendant (necklace)
Sale price¥79,800
Gold Sheen Sapphire 4mm/0.409ct loose
Sale price¥29,800
Sapphire 0.502ct loose (pink purple)
Sale price¥9,800
Opal 21.584ct loose Japanese and German
Sale price¥8,800
[KEN] Bicolor sapphire 0.853ct loose
Sale price¥15,800
Montana Sapphire 1.9mm/0.033ct loose
Sale price¥6,980
Malawi sapphire 3mm/0.128ct loose
Sale price¥18,800
Mexican fire opal 6mm/0.737ct loose (rose cut)
Sale price¥19,800
Mexican fire opal 6mm/0.756ct loose (rose cut)
Sale price¥18,800
Mexican fire opal 6mm/0.698ct loose (rose cut)
Sale price¥18,800
Bicolor sapphire from Sri Lanka 1.610ct loose
Sale price¥24,800
Ruby from Greenland 0.556ct loose with certificate
Sale price¥18,800
Ruby from Greenland 0.699ct loose with certificate
Sale price¥14,800
[Colorful] K18 Mexican Fire Opal & Water Opal 2.75ct Diamond Ring
Sale price¥110,000
[KEN] Fire opal from Mexico 1.808ct loose
Sale price¥35,800
[KEN] Fire opal from Mexico 1.624ct loose
Sale price¥32,800
[Mr. KEN] Opal from Mexico 1.679ct loose
Sale price¥39,800
Ruby 0.182ct loose
Sale price¥8,800
Ruby 0.209ct loose
Sale price¥8,800
Pink sapphire from Greenland 4.3mm/0.465ct loose with certificate
Sale price¥8,800
Ice ruby (pink sapphire) from Greenland 0.416ct loose with certificate
Sale price¥18,800
Pink sapphire from Greenland 0.754ct loose with certificate
Sale price¥29,800
Pink sapphire from Greenland 0.336ct loose with certificate
Sale price¥15,800
Ice ruby from Greenland 0.543ct loose (pink sapphire) with certificate
Sale price¥29,800
Ruby from Greenland 0.268ct loose with certificate
Sale price¥19,800
Ruby from Greenland 0.432ct loose with certificate
Sale price¥39,800
Ruby from Greenland 0.421ct loose with certificate
Sale price¥29,800
Pink sapphire from Greenland 0.466ct loose with certificate
Sale price¥24,800
Pink sapphire from Greenland 0.275ct loose with certificate
Sale price¥18,800
Ruby from Greenland 0.307ct loose with certificate
Sale price¥18,800
Benitoite 0.165ct loose (emerald cut)
Sale price¥44,800
[KEN] Opal from Mexico 0.276ct loose
Sale price¥18,800
[KEN] Opal from Mexico 0.498ct loose
Sale price¥24,800
[Mr. KEN] Fire opal from Mexico 0.359ct loose
Sale price¥19,800
[KEN] Fire opal from Mexico 5mm/0.342ct loose
Sale price¥18,800
Yellow sapphire from Sri Lanka 6mm/0.816ct loose
Sale price¥22,800
Yellow sapphire from Sri Lanka 6mm/0.962ct loose
Sale price¥24,800
Conch pearl (with flame pattern) 0.731ct loose
Sale price¥12,800
Conch pearl 0.414ct loose
Sale price¥12,800
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.