Colombian Trapiche Emerald 0.266ct Loose
Sale price¥14,800
Mexican Cantera Opal 4.835ct Loose
Sale price¥19,800
Sri Lankan Yellow Sapphire 0.555ct Loose
Sale price¥12,800
Montana Sapphire 0.244ct Loose (Bi-Color Sapphire)
Sale price¥8,800
Montana Sapphire 0.325ct Loose (Orange Sapphire)
Sale price¥8,800
Montana Sapphire 0.261ct Loose (Green Sapphire)
Sale price¥8,800
American Herkimer Diamond 5.6mm/0.516ct Loose
Sale price¥9,800
Montana Sapphire 0.294ct Loose (Green Sapphire)
Sale price¥9,800
Montana Sapphire 0.270ct Loose (Blue Sapphire)
Sale price¥9,800
Sri Lankan Yellow Sapphire 1.101ct Loose
Sale price¥19,800
《Yurakucho Marui 2024112 takeout》Australian black opal 1.015ct loose
Sale price¥19,800
Brazilian Paraiba Tourmaline 0.200ct loose stone (CuO: 1.7%, MnO: 2.8%)
Sale price¥98,000
Salt and pepper diamond 0.369ct loose
Sale price¥39,800
Brazilian Paraiba Tourmaline 0.821ct rough stone
Sale price¥39,800
Colombian emerald 1.435ct rough stone
Sale price¥18,800
Colombian emerald with pyrite 0.984ct rough
Sale price¥12,800
Tanzanian bicolor tanzanite rough stone 2.750ct
Sale price¥9,800
Colombian Trapiche Emerald 0.372ct Loose
Sale price¥19,800
[On sale at 10pm on 7/29] Almandine Garnet 1.837ct loose stone
Sale price¥15,800
Colombian Trapiche Emerald 0.299ct Loose
Sale price¥16,800
Russian rough diamond (sawable) 0.098ct loose
Sale price¥24,800
Tanzanite from Tanzania 0.262ct loose stone
Sale price¥8,800
Colombian pyrite emerald 13.691ct loose stone
Sale price¥398,000
Brazilian Green Tourmaline 26.071ct Loose Stone (Sugarloaf Cut)
Sale price¥298,000
Brazilian bicolor tourmaline 6.928ct loose stone (bicolor blue tourmaline)
Sale price¥298,000
Colombian pyrite emerald 8.044ct loose stone
Sale price¥188,000
Australian Shell Opal (Shell Opal) 73.321ct Rough Stone
Sale price¥49,800
[On sale 7/27 at 10pm] Colombian Trapiche Emerald 0.392ct loose stone
Sale price¥19,800
[Camellia Cut] Almandine Garnet 10mm/3.825ct Loose Stone
Sale price¥35,800
Brazilian Watermelon Tourmaline Rough Stone 7.959ct
Sale price¥12,800
Colombian Trapiche Emerald 0.222ct Loose
Sale price¥18,800
Tanzanian bicolor tanzanite rough stone 2.454ct
Sale price¥12,800
Ethiopian Opal 5.4mm/0.818ct Loose (Sphere Cut)
Sale price¥9,800
Russian rough diamond (sawable) 0.125ct loose
Sale price¥29,800
Colombian Trapiche Emerald 0.260ct Loose
Sale price¥14,800
Paraiba Tourmaline from Mozambique 0.373ct loose stone
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.