Pink tourmaline 0.307ct loose
Sale price¥5,980
Kunzite 21mm/39.372ct loose
Sale price¥128,000
Russian demantoid garnet (horsetail recognized) 3mm/0.138ct loose
Sale price¥24,800
Bicolor apatite 15.507ct loose
Sale price¥128,000
Star spinel from Myanmar 0.544ct loose
Sale price¥12,800
Star spinel from Myanmar 1.004ct loose
Sale price¥16,800
Star spinel from Myanmar 1.252ct loose
Sale price¥18,800
Myanmar star spinel 1.160ct loose
Sale price¥18,800
Star spinel 1.295ct loose
Sale price¥15,800
Color change Andesine 0.749ct loose
Sale price¥15,800
Color change Andesine 0.794ct loose
Sale price¥15,800
Color change Andesine 0.665ct loose
Sale price¥15,800
Colombian emerald cat's eye 0.834ct loose
Sale price¥59,800
Royal blue sapphire 1.44ct loose GIA
Sale price¥188,000
Lavender spinel 1.285ct loose
Sale price¥45,800
Russian demantoid garnet (horsetail recognized) 5.5mm/0.710ct loose
Sale price¥198,000
Russian demantoid garnet (horsetail recognized) 5.3mm/0.692ct loose
Sale price¥178,000
Montana Sapphire 2.7mm/0.098ct Loose (Yellow)
Sale price¥9,800
Montana Sapphire 2.4mm/0.071ct Loose (Yellow)
Sale price¥7,980
Myanmar Maw Sisit 0.855ct loose stone (Maw Sisit)
Sale price¥5,980
Myanmar Maw Sisit 1.112ct loose stone (Maw Sisit)
Sale price¥6,980
Kunzite 13.700ct loose
Sale price¥19,800
Russian demantoid garnet (horsetail recognized) 2.9mm/0.165ct loose
Sale price¥33,800
Russian demantoid garnet (horsetail recognized) 2.8mm/0.187ct loose
Sale price¥25,800
FANCY INTENSE YELLOW, SI-1
Sale price¥25,800
Tagtupite from Greenland 0.236ct loose
Sale price¥18,800
Benitoite 2.7mm/0.114ct loose
Sale price¥27,800
Benitoite 2.7mm/0.104ct loose
Sale price¥29,800
Rhodochrosite from South Africa 5.2mm/0.645ct loose
Sale price¥59,800
Montana Sapphire 3mm/0.149ct Loose (Rock Creek)
Sale price¥19,800
Benitoite 0.100ct loose (emerald cut)
Sale price¥35,800
Umba sapphire (from Tanzania) 0.503ct loose
Sale price¥8,800
Demantoid garnet from Madagascar 0.074ct loose
Sale price¥8,800
Demantoid garnet from Madagascar 0.062ct loose
Sale price¥11,800
Mexican cantera opal 12.401ct loose
Sale price¥15,800
Mexican cantera opal 4.711ct loose
Sale price¥15,800
Red beryl 0.224ct loose
Sale price¥25,800
[Koshu precious stone cut plusthree] Citrine 0.901ct loose with patch
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.