Diamond 0.052ct loose (trapeze cut, VS class equivalent)
Sale price¥8,800
Colombian emerald cat's eye 0.110ct loose
Sale price¥12,800
[Camellia cut] Opal 14mm/5.283ct loose with patch
Sale price¥98,000
Australian opal 0.286ct loose
Sale price¥6,980
Pink sapphire 0.225ct loose
Sale price¥6,980
Blue sapphire 0.896ct loose
Sale price¥28,800
Amazon green opal 1.120ct loose
Sale price¥5,980
Ethiopian opal 6.181ct loose
Sale price¥19,800
Australian boulder opal 3.695ct loose
Sale price¥15,800
Australian boulder opal 1.552ct loose
Sale price¥12,800
Sri Lankan star sapphire 1.487ct loose
Sale price¥12,800
Sri Lankan star sapphire 1.164ct loose
Sale price¥12,800
Australian boulder opal 2.470ct loose
Sale price¥8,800
Australian boulder opal 4.729ct loose
Sale price¥19,800
Unheated silky pink sapphire from Vietnam 0.282ct loose
Sale price¥7,980
[KEN] Fire opal from Mexico 1.150ct loose
Sale price¥39,800
Colombian pyrite/mica in emerald 6.145ct loose
Sale price¥158,000
Colombian pyrite in emerald 4.592ct loose
Sale price¥128,000
Sapphire 0.643ct loose (color shift)
Sale price¥14,800
Sapphire 0.662ct loose
Sale price¥12,800
Sapphire 0.676ct loose (color shift)
Sale price¥16,800
Green sapphire 0.518ct loose (teal green)
Sale price¥9,800
Color change sapphire 0.946ct loose stone from Yurakucho Marui 2024112
Sale price¥39,800
Pink sapphire from Mozambique 0.213ct loose (hot pink sapphire)
Sale price¥14,800
Unheated silky pink sapphire from Vietnam 0.426ct loose
Sale price¥18,800
Unheated silky pink sapphire from Vietnam 0.423ct loose
Sale price¥22,800
Unheated silky pink sapphire from Vietnam 0.381ct loose
Sale price¥19,800
Unheated silky pink sapphire from Vietnam 0.376ct loose
Sale price¥14,800
Bicolor sapphire from Sri Lanka 0.290ct loose
Sale price¥14,800
Montana Sapphire 3mm/0.155ct loose
Sale price¥23,800
Myanmar trapichel ruby 0.179ct rough stone
Sale price¥3,980
Myanmar trapichel ruby 0.160ct rough stone
Sale price¥5,980
Trapichel ruby from Myanmar 0.231ct rough stone
Sale price¥5,980
Myanmar trapichel ruby 0.152ct rough stone
Sale price¥4,980
Trapichel ruby from Myanmar 0.202ct rough stone
Sale price¥3,980
Myanmar trapichel ruby 0.261ct rough stone
Sale price¥4,980
Myanmar trapichel ruby 0.248ct rough stone
Sale price¥5,980
Myanmar trapichel ruby 0.227ct rough stone
Sale price¥3,980
Yellow Diamond 3mm/0.111ct Loose (FANCY VIVID ORANGY YELLOW, SI-2)
Sale price¥45,800
Diamond 0.139ct loose (E, VS-1, octagonal cut)
Sale price¥22,800
Diamond 0.131ct loose (F, VS-1, octagonal cut)
Sale price¥23,800
Diamond 3mm/0.126ct loose (F, VS-1, octagonal cut)
Sale price¥22,800
Mexican Hyalite Opal 5.115ct rough stone
Sale price¥5,980
[KEN] Sapphire 0.663ct loose
Sale price¥9,800
Sapphire from Madagascar 4.5mm/0.414ct loose
Sale price¥16,800
Sapphire from Madagascar 4.3mm/0.398ct loose
Sale price¥15,800
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.
