Rough diamond (makeable) 0.345ct loose (VS-SI equivalent)
Sale price¥34,800
Sri Lankan star sapphire 1.323ct loose
Sale price¥6,980
Sri Lankan star sapphire 1.061ct loose
Sale price¥8,800
Brazilian emerald 3.2mm/0.124ct loose
Sale price¥25,800
Brazilian emerald 3.3mm/0.119ct loose
Sale price¥22,800
Brazilian emerald cat's eye 0.459ct loose
Sale price¥6,980
《Yurakucho Marui 2024112 takeout》Diamond 0.109ct loose (F, SI1)
Sale price¥22,800
Bicolor sapphire 0.484ct loose (color shift)
Sale price¥19,800
[KEN] Opal from Mexico 0.982ct loose
Sale price¥29,800
Color change sapphire 0.283ct loose
Sale price¥4,980
Color change sapphire 0.401ct loose
Sale price¥6,980
[Mr. Sanjay] Opal 7.3mm/1.033ct loose
Sale price¥12,800
[Mr. Sanjay] Opal 6.9mm/0.843ct loose
Sale price¥8,800
Color change sapphire 0.351ct loose
Sale price¥4,980
Color change sapphire 0.308ct loose
Sale price¥3,980
Bicolor sapphire 1.030ct loose from Windsor, Tanzania
Sale price¥98,000
Salt and pepper diamond 0.383ct loose
Sale price¥17,800
Salt and pepper diamond 0.366ct loose
Sale price¥15,800
Salt and pepper diamond 0.553ct loose
Sale price¥24,800
Colombian pyrite in emerald 7.836ct loose
Sale price¥398,000
Iron opal 166.771ct loose
Sale price¥29,800
Iron opal 141.838ct loose
Sale price¥18,800
Iron opal 124.468ct loose
Sale price¥16,800
Mexican cantera opal 14.740ct loose
Sale price¥18,800
Iron opal 187.734ct loose
Sale price¥29,800
Iron opal 161.698ct loose
Sale price¥22,800
Australian boulder opal 1.026ct loose
Sale price¥6,980
Australian boulder opal 1.027ct loose
Sale price¥6,980
Australian boulder opal 0.874ct loose
Sale price¥4,980
Australian boulder opal 0.721ct loose
Sale price¥5,980
Australian boulder opal 1.156ct loose
Sale price¥5,980
Australian boulder opal 1.173ct loose
Sale price¥5,980
Australian boulder opal 0.982ct loose
Sale price¥6,980
Australian boulder opal 1.868ct loose
Sale price¥29,800
Australian boulder opal 1.675ct loose
Sale price¥29,800
Australian boulder opal 28.880ct loose
Sale price¥69,800
Sri Lankan white sapphire 2.9mm/0.086ct loose (rose cut)
Sale price¥5,980
Australian boulder opal 13.190ct loose
Sale price¥19,800
Australian boulder opal 14.860ct loose
Sale price¥19,800
Australian boulder opal 9.020ct loose
Sale price¥19,800
Unheated silky pink sapphire from Vietnam 0.439ct loose
Sale price¥25,800
Unheated silky pink sapphire from Vietnam 0.336ct loose
Sale price¥18,800
Green opal 15.950ct loose
Sale price¥39,800
Mexican fire opal 6.742ct loose
Sale price¥98,000
Royal blue sapphire 0.81ct loose AIGS
Sale price¥88,800
Montana Sapphire 0.119ct loose
Sale price¥16,800
《Yurakucho Marui 2024112 takeout》Malawi sapphire 3mm/0.144ct loose stone
Sale price¥22,800
Montana Sapphire 3mm/0.154ct loose
Sale price¥22,800
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.
