Madagascar Blue Sapphire 0.401ct Loose
Sale price¥14,800
Madagascar Blue Sapphire 0.302ct Loose
Sale price¥16,800
Madagascar Blue Sapphire 0.261ct Loose
Sale price¥22,800
Sri Lankan Blue Sapphire 0.519ct Loose
Sale price¥15,800
Sri Lankan Blue Sapphire (Ice Blue) 0.584ct Loose
Sale price¥9,800
Royal Blue Sapphire 0.720ct Loose
Sale price¥158,000
Royal blue sapphire 1.010ct loose AIGS
Sale price¥198,000
Royal Blue Sapphire 0.730ct Loose AIGS
Sale price¥158,000
Montana Sapphire 0.212ct Loose (Blue Sapphire)
Sale price¥9,800
Montana Sapphire 0.206ct Loose (Blue Sapphire)
Sale price¥9,800
Montana sapphire 0.359ct loose (blue sapphire)
Sale price¥15,800
Royal blue sapphire 1.420ct loose AIGS
Sale price¥198,000
Ice blue sapphire from Madagascar 0.181ct loose
Sale price¥7,980
K18 bicolor sapphire 0.129ct/blue sapphire ring
Sale price¥69,800
Royal blue sapphire 1.44ct loose GIA
Sale price¥188,000
Ice blue sapphire 3.813ct loose
Sale price¥49,800
Royal blue sapphire 2.22ct loose AIGS
Sale price¥398,000

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.