Bangkacha sapphire (star sapphire) 69.655ct loose
Sale price¥198,000
Kenyan gold sheen sapphire 2.3mm/0.080ct loose
Sale price¥11,800
Kenyan gold sheen sapphire 2.4mm/0.086ct loose
Sale price¥12,800
Kenyan gold sheen sapphire 2.2mm/0.064ct loose
Sale price¥9,800
Kenyan gold sheen sapphire 2.2mm/0.069ct loose
Sale price¥9,800
Kenyan gold sheen sapphire 2.2mm/0.068ct loose
Sale price¥12,800
Kenyan gold sheen sapphire 2.1mm/0.071ct loose
Sale price¥9,800
Kenyan gold sheen sapphire 2.3mm/0.076ct loose
Sale price¥7,980
Kenyan gold sheen sapphire 2.3mm/0.079ct loose
Sale price¥8,800
Kenyan gold sheen sapphire 2.3mm/0.083ct loose
Sale price¥8,800
Kenyan gold sheen sapphire 2.3mm/0.084ct loose
Sale price¥12,800
Kenyan gold sheen sapphire 2.5mm/0.092ct loose
Sale price¥11,000
Kenyan gold sheen sapphire 2.3mm/0.083ct loose
Sale price¥11,000
Bangkacha sapphire (star sapphire) 1.417ct loose
Sale price¥8,800
Bangkacha sapphire (star sapphire) 1.573ct loose
Sale price¥12,800
Bangkacha sapphire (star sapphire) 1.370ct loose
Sale price¥12,800
Green sapphire 7.545ct loose (spade cut)
Sale price¥69,800
Kenyan gold sheen sapphire 0.257ct loose
Sale price¥29,800
Sri Lankan star sapphire 1.773ct loose
Sale price¥12,800
Ice blue sapphire 3.813ct loose
Sale price¥49,800
Star sapphire 0.973ct loose
Sale price¥5,980
Sierra Leone sapphire 1.470ct loose
Sale price¥14,800
Sierra Leone sapphire 1.210ct loose
Sale price¥9,800
Bicolor star sapphire from Myanmar 1.190ct loose (pink sapphire)
Sale price¥29,800
Bicolor pink star sapphire from Mogok 0.360ct loose
Sale price¥24,800
Bicolor sapphire 0.292ct loose
Sale price¥25,800
Bicolor sapphire 1.020ct loose
Sale price¥69,800
Umba sapphire (from Tanzania) 0.503ct loose
Sale price¥8,800
Montana Sapphire 3mm/0.149ct Loose (Rock Creek)
Sale price¥19,800
Montana Sapphire 2.4mm/0.071ct Loose (Yellow)
Sale price¥7,980
Montana Sapphire 2.7mm/0.098ct Loose (Yellow)
Sale price¥9,800
K18 bicolor sapphire 0.129ct/blue sapphire ring
Sale price¥69,800
Tanzanian Golden Sheen Sapphire 0.495ct Loose
Sale price¥14,800
[Cat cut] Bankacha sapphire 6mm/0.784ct loose
Sale price¥17,800
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
Ice ruby from Greenland 0.543ct loose (pink sapphire) with certificate
Sale price¥29,800
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 (pink sapphire) from Greenland 0.416ct loose with certificate
Sale price¥18,800
Pink sapphire from Greenland 4.3mm/0.465ct loose with certificate
Sale price¥8,800
Malawi sapphire 3mm/0.128ct loose
Sale price¥18,800
Montana Sapphire 1.9mm/0.033ct loose
Sale price¥6,980
Bicolor sapphire 0.853ct loose stone
Sale price¥15,800
Sapphire 0.502ct loose (pink purple)
Sale price¥9,800
Gold Sheen Sapphire 4mm/0.409ct loose
Sale price¥29,800
Montana Sapphire 3mm/0.154ct loose
Sale price¥22,800
Montana Sapphire 0.119ct loose
Sale price¥16,800

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.