Cantera opal 12.211ct loose
Sale price¥8,800
Cantera Opal 46.175ct loose
Sale price¥19,800
Colombian emerald 4.205ct rough stone
Sale price¥15,800
Russian demantoid garnet (horsetail recognized) 4.4mm/0.394ct loose
Sale price¥88,800
Sri Lankan star sapphire 1.773ct loose
Sale price¥12,800
Tanzanite 1.360ct loose stone
Sale price¥49,800
Russian demantoid garnet (horsetail recognized) 4.6mm/0.423ct loose
Sale price¥98,000
Paraiba tourmaline from Brazil 0.134ct loose (CuO:0.8%, MnO:2.3%)
Sale price¥29,800
Green sapphire 7.545ct loose (spade cut)
Sale price¥69,800
Kenyan gold sheen sapphire 0.257ct loose
Sale price¥29,800
Spessartine garnet 8.592ct loose
Sale price¥98,000
Watermelon tourmaline 44.201ct Ruth Japanese-German book
Sale price¥398,000
[KEN] Fire opal 0.448ct loose
Sale price¥6,980
Ametrine 4.720ct loose
Sale price¥3,980
Bicolor tourmaline 0.952ct loose
Sale price¥12,800
Green tourmaline 2.166ct loose (sugar loaf cut)
Sale price¥8,800
Bicolor tourmaline 3.277ct loose
Sale price¥9,800
Particolor tourmaline 32.207ct loose (tricolor tourmaline)
Sale price¥398,000
Cantera opal 17.284ct loose
Sale price¥39,800
Cantera Opal 8.678ct loose
Sale price¥35,800
[Camellia cut] Opal 14mm loose with patch
Sale price¥128,000
Bicolor sapphire 2.394ct loose (sugar loaf cut)
Sale price¥88,000
Bicolor tourmaline 6.258ct loose (tricolor tourmaline)
Sale price¥148,000
Bicolor tourmaline 0.431ct loose
Sale price¥6,980
Conch pearl 0.800ct loose
Sale price¥28,800
Conch pearl 1.990ct loose (with flame pattern)
Sale price¥39,800
Brazilian Blue Topaz 14.890ct Loose
Sale price¥14,800
Aquamarine 4.894ct loose medium treasure
Sale price¥39,800
Tanzanite 1.680ct loose
Sale price¥29,800
[Koshu Precious Stone Kiriko] Swiss Blue Topaz 3.09ct Loose with Patch
Sale price¥45,800
[KEN] Fire opal 1.360ct loose
Sale price¥25,800
[Mr. KEN] Parti-color tourmaline from Africa 1.121ct loose (tricolor)
Sale price¥29,800
[Cat cut] Blue green tourmaline 5.5mm loose
Sale price¥12,800
Conch pearl (with flame pattern) 1.260ct loose
Sale price¥35,800
Star peridot 0.143ct loose
Sale price¥17,800
Star peridot 0.105ct loose
Sale price¥12,800
Star peridot 0.068ct loose
Sale price¥8,800
Russian demantoid garnet (horsetail recognized) 5.8mm/0.876ct loose
Sale price¥298,000
[Mr. NOBU] Green Opal from Amazon [Collaboration] 7mm Loose
Sale price¥9,800
Aquamarine 1.250ct loose
Sale price¥8,800
Aquamarine 1.090ct loose
Sale price¥6,980
Mexican fire opal 0.980ct loose
Sale price¥25,800
Bangkacha sapphire (star sapphire) 1.370ct loose
Sale price¥12,800
[KEN] Mint color tourmaline 0.777ct loose
Sale price¥8,800
Pink tourmaline 0.530ct loose
Sale price¥7,980
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.
