Bicolor sapphire from Madagascar 0.212ct loose
Sale price¥9,800
Mexican water opal 0.212ct loose (contrarus opal)
Sale price¥39,800
Yellow sapphire from Sri Lanka 0.222ct loose
Sale price¥12,800
[Mr. Sanjay] Goshenite 1.620ct loose
Sale price¥22,800
[Mr. Sanjay] Goshenite 1.989ct loose
Sale price¥25,800
Tanzanian bicolor zircon 1.356ct loose stone DGL
Sale price¥59,800
[Koshu precious stone Kiriko plusthree] Rubellite 1.809ct loose
Sale price¥39,800
[Koshu precious stone Kiriko plusthree] Green tourmaline 1.880ct loose
Sale price¥35,800
[Koshu precious stone Kiriko plusthree] Green tourmaline 3.322ct loose
Sale price¥39,800
[Koshu precious stone Kiriko plusthree] Swiss blue topaz 26.821ct loose
Sale price¥59,800
Dendritic Agate 2.964ct loose
Sale price¥15,800
Diaspore 1.209ct loose from Türkiye
Sale price¥21,800
Diaspore from Türkiye 0.858ct loose
Sale price¥21,800
Diaspore from Türkiye 0.712ct loose
Sale price¥17,800
Diaspore from Türkiye 0.636ct loose
Sale price¥15,800
Brazilian kyanite in quartz 13.740ct loose
Sale price¥45,800
Brazilian kyanite in quartz 4.770ct loose
Sale price¥16,800
Chinese aragonite 36.409ct loose with patch
Sale price¥7,980
Brazilian Trapichea Amethyst 24.772ct loose with patch
Sale price¥8,800
Labradorite from Finland 25.485ct loose (spectralite) with patch
Sale price¥8,800
Sphene from Madagascar 1.404ct loose
Sale price¥15,800
Tourmaline cat's eye 0.910ct loose
Sale price¥6,980
Sphene from Madagascar 0.761ct loose
Sale price¥12,800
Sphene from Madagascar 0.601ct loose
Sale price¥9,800
Russian demantoid garnet 3.2mm/0.200ct loose
Sale price¥15,800
Sphene from Madagascar 1.899ct loose
Sale price¥24,800
Sphene from Madagascar 1.476ct loose
Sale price¥18,800
Montebrasite 0.373ct loose
Sale price¥9,800
Bicolor sapphire 0.335ct loose
Sale price¥9,800
Opal 6mm/0.595ct loose (rose cut)
Sale price¥9,800
Brazilian dumortierite in quartz 3.901ct loose
Sale price¥19,800
Brazilian Medusa Quartz (Paraiba Quartz) 6.954ct loose
Sale price¥17,800
Colorless zircon 1.361ct loose from Sri Lanka
Sale price¥6,980
Colorless zircon 1.413ct loose from Sri Lanka
Sale price¥6,980
Cambodian blue zircon 1.179ct loose
Sale price¥7,980
[KEN] Citrine 0.833ct loose
Sale price¥3,980
《Yurakucho Marui 2024112 takeout》【KEN】Citrine 1.216ct loose stone
Sale price¥4,980
《Yurakucho Marui 2024112 takeout》 [KEN] Citrine 1.250ct loose stone
Sale price¥5,980
American peridot 1.353ct loose
Sale price¥9,800
Bicolor Zoisite 1.210ct loose
Sale price¥19,800
Cambodian blue zircon (Ratanakiri blue) 3.449ct loose
Sale price¥69,800
Amethyst 8.044ct loose
Sale price¥6,980
Zircon 1.800ct loose
Sale price¥6,980
Yellow sapphire 5mm/0.572ct loose
Sale price¥5,980
[KEN] Danburite 1.427ct loose
Sale price¥5,980
Aquamarine cat's eye 3.929ct loose
Sale price¥5,980
Aquamarine cat's eye 3.528ct loose
Sale price¥5,980
Mexican fire agate 3.800ct loose
Sale price¥5,980
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.