Montana Sapphire 0.294ct Loose (Green Sapphire)
Sale price¥9,800
Montana Sapphire 0.270ct Loose (Blue Sapphire)
Sale price¥9,800
Russian rough diamond (sawable) 0.098ct loose
Sale price¥24,800
American benitoite 0.074ct loose
Sale price¥8,800
Russian rough diamond (sawable) 0.125ct loose
Sale price¥29,800
Russian Diamond Rough (Sawable) 0.097ct Loose (Trigon)
Sale price¥25,800
Tanzanian bicolor sapphire 0.125ct loose stone
Sale price¥4,980
Tanzanian bicolor sapphire 0.120ct loose stone
Sale price¥5,980
Tanzanian bicolor sapphire 0.118ct loose stone
Sale price¥4,980
Diamond 0.081ct loose stone (E, SI1, fan cut)
Sale price¥12,800
Brazilian Alexandrite 0.068ct loose stone (princess cut)
Sale price¥17,800
Brazilian Alexandrite 0.069ct loose stone (princess cut)
Sale price¥17,800
Brazilian Alexandrite 0.068ct loose stone (princess cut)
Sale price¥17,800
Brazilian Alexandrite 0.072ct loose stone (princess cut)
Sale price¥18,800
Russian Diamond Rough (Sawable) 0.097ct Loose (Trigon)
Sale price¥25,800
Russian rough diamond (sawable) 0.088ct loose
Sale price¥22,800
Pakistani Veirinite 0.073ct loose stone
Sale price¥11,000
Russian Diamond Rough (Sawable) 0.103ct Loose (Trigon)
Sale price¥25,800
Montana Sapphire 0.207ct Loose (Blue Sapphire)
Sale price¥8,800
[Updated 12552163] Benitoite 0.099ct loose stone
Sale price¥34,800
Russian rough diamond (sawable) 0.117ct loose
Sale price¥29,800
Russian Diamond Rough (Sawable) 0.091ct Loose (Trigon)
Sale price¥22,800
Russian rough diamond (sawable) 0.101ct loose
Sale price¥25,800
South African diamond rough (sawable) 0.110ct rough
Sale price¥25,800
South African diamond rough (sawable) 0.085ct rough
Sale price¥19,800
Bekily Blue Garnet (color change garnet) 0.114ct loose
Sale price¥11,800
Bekiri Blue Garnet (Color Change Garnet) 0.106ct Loose Stone
Sale price¥9,800
Tanzanian Golden Sheen Sapphire 3mm/0.161ct Loose Stone
Sale price¥6,980
Paraiba tourmaline from Brazil 0.018ct loose
Sale price¥14,800
Paraiba tourmaline from Brazil 0.023ct loose
Sale price¥19,800
Silky Diamond 2.6mm/0.081ct Loose
Sale price¥5,980
Unheated Silky Pink Sapphire from Vietnam 2.5mm/0.084ct Loose Stone
Sale price¥6,980
Unheated Silky Pink Sapphire from Vietnam 2.4mm/0.078ct Loose
Sale price¥4,980
0.165ct Unheated Silky Pink Sapphire from Vietnam
Sale price¥6,980
Unheated Brazilian Paraiba Tourmaline 0.025ct loose stone
Sale price¥39,800
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.
