[On sale at 10pm on 10/18] Mexican Cantera Opal 2.982ct loose stone
Sale price¥14,800
[On sale at 10pm on 10/18] Mexican Cantera Opal 2.219ct loose stone
Sale price¥9,800
[On sale at 10pm on 10/18] Mexican Cantera Opal 4.542ct loose stone
Sale price¥12,800
[On sale 10/23 22:00] Mexican Cantera Opal 11.105ct Loose
Sale price¥12,800
[On sale at 10pm on 10/17] Mexican fire opal 3.639ct loose stone
Sale price¥7,980
![[On sale from 10/18 at 22:00] [Limited to 16 stones] 1 Montana sapphire loose stone (including teal blue and bicolor) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010266_b3a693e8-899b-441b-af77-8c669ccbe0b9.jpg?v=1728695341&width=4000)
![[On sale from 10/18 at 22:00] [Limited to 12 stones] 1 loose iron opal from Australia (average 28ct, October birthstone opal) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010326_6cd787bb-6ef9-43a4-a557-ff315be1d710.jpg?v=1729082068&width=4000)
![[On sale at 10pm on 10/17] Colombian emerald 1.560ct loose stone](http://store.karatz.jp/cdn/shop/files/PA210256.jpg?v=1729073347&width=2892)
[On sale at 10pm on 10/17] Colombian emerald 1.560ct loose stone
Sale price¥39,800
[On sale at 10pm on 10/17] Mexican fire opal 1.578ct loose stone
Sale price¥12,800
![[On sale from 10/17 at 10pm] [Sakura Incut] Mexican Hyalite Opal 5.8mm/0.53ct [Collaboration] Loose Patch](http://store.karatz.jp/cdn/shop/files/collage_3e266808-d630-4f17-8842-06648a5dc578.png?v=1729029836&width=2000)
![[On sale at 10pm on 10/16] Nepalese orange kyanite 0.79ct loose stone](http://store.karatz.jp/cdn/shop/files/079ct-637788_af24d039-c349-48c0-ba7c-84ddc432a527.jpg?v=1691192780&width=956)
[On sale at 10pm on 10/16] Mexican fire opal 0.780ct loose stone
Sale price¥12,800
Dominican Republic Conch Pearl (with flame pattern) 0.572ct loose
Sale price¥8,800
Bankacha Sapphire (Black Star Sapphire) 2.260ct Loose
Sale price¥8,800
Dominican Republic Conch Pearl 1.60ct Loose
Sale price¥39,800
Dominican Republic Conch Pearl (with flame pattern) 2.271ct loose
Sale price¥9,800
[Clover in cut] Mexican opal 7mm/0,648ct {Collaboration} Loose patch
Sale price¥45,800
![[On sale from 10/14 at 22:00] [Limited to 7 stones] 1 loose iron opal from Australia (average 7ct, October birthstone opal) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010396_68ccfd28-d9ff-4223-b636-4d25b8af6683.jpg?v=1728693087&width=4000)
Unheated Padparadscha Sapphire 0.250ct Loose GIA
Sale price¥45,800
Australian Shell Opal (Shell Opal) 51.801ct Rough Stone
Sale price¥25,800
Pt900 Spanish Sphalerite 1.32ct Diamond 0.51ct Ring
Sale price¥128,000
![[On sale from 10/11 at 22:00] {Limited to 4 stones} Ethiopian black opal (heat-treated, identification instructions included) 1 loose stone {Multiple purchase discounts available}](http://store.karatz.jp/cdn/shop/files/collage_4c67c7fd-011f-4ad3-962e-cdb8603cce67.png?v=1728475006&width=2000)
[On sale at 10/12 22:00] Sri Lankan bicolor sapphire 1.090ct loose stone
Sale price¥39,800
[On sale at 10pm on 12/10] Kenyan Gold Sheen Sapphire 4mm/0.438ct Loose
Sale price¥55,800
[On sale 11/1 at 22:00] Diamond (cabochon cut) 0.183ct loose
Sale price¥24,800
[On sale 11/1 at 22:00] Diamond (cabochon cut) 0.366ct loose
Sale price¥59,800
[On sale 11/1 22:00] Yellow Diamond (Sugarloaf Cut) 0.348ct Loose
Sale price¥39,800
[On sale 11/1 at 22:00] Diamond (cabochon cut) 0.173ct loose
Sale price¥19,800
Kenyan Gold Sheen Sapphire 0.273ct Loose
Sale price¥22,800
Kenyan Gold Sheen Sapphire 0.264ct Loose
Sale price¥22,800
Kenyan Gold Sheen Sapphire 0.305ct Loose
Sale price¥12,800
Colombian Trapiche Emerald 1.494ct Loose
Sale price¥69,800
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.
