Vertical: 4.1 - 5.0mm

Zimbabwean Bicolor Euclase 0.196ct Loose Stone Sale price¥45,800

Madagascar Bicolor Sapphire 0.266ct Loose Sale price¥16,800

[12559763] Zimbabwean sphene 0.400ct loose stone Sale price¥9,800

[12559545] Colombian Euclase 0.546ct Loose Stone Sale price¥25,800

[12559446] Tanzanian Kornerupine 0.241ct Loose Stone Sale price¥45,800

[11/2 22:00] Brazilian mint-colored emerald 0.491ct loose stone Sale price¥15,800

[On Sale 11/1 at 10pm] Madagascar Bicolor Sapphire 0.318ct Loose Sale price¥25,800

[12559941] Tourmaline 0.314ct loose stone Sale price¥22,800

Unheated ruby 0.430ct loose Sale price¥98,000

Nigerian Cobalt Garnite 0.152ct Loose Stone Sale price¥45,800

[On Sale at 10 PM on October 31st] Tanzanian Bicolor Sapphire 0.486ct Loose Sale price¥12,800

[On Sale at 10 PM on October 31st] Russian Demantoid Garnet (Horsetail Certified) 0.256ct Loose Stone Sale price¥79,800

[12560826] Russian Alexandrite 0.167ct Loose Stone Sale price¥98,000

[11/1 22:00 Sale] Tanzanian Spessartine Garnet 0.383ct Loose Stone Sale price¥12,800

[On Sale at 10 PM on 10/28] Mexican Fire Opal 4.8mm/0.199ct Loose Sale price¥8,800

[On Sale at 10:00 PM on October 28th] 0.090ct Loose Moldavite from the Former Czechoslovakia Sale price¥9,800

[On Sale at 10pm on 10/29] Tanzanian Mint Diopside 0.290ct Loose Stone Sale price¥9,800

[On Sale at 10pm on 10/28] Brazilian Kasharai Amethyst 0.266ct Loose Stone Sale price¥7,980

[10/19 22:00 Sale] American Benitoite 0.165ct Loose Stone Sale price¥59,800

[On Sale at 10pm on 10/22] Indian Iolite Sunstone 0.228ct Loose Sale price¥6,980

[10/13 22:00 Sale] American Benitoite 0.185ct Loose Stone Sale price¥128,000

[10/12 22:00 Sale] Cassiterite 4.2mm/0.676ct Loose Stone with Certificate of Authenticity Sale price¥16,800

[On Sale 10/11 at 10 PM] Brazilian Paraiba Tourmaline 0.170ct Loose Stone (CuO: 2.1%, MnO: 1.1%) Sale price¥198,000

[10/12 22:00 Sale] Pigeon Blood Ruby 0.320ct Loose Stone AIGS Sale price¥48,800

Parasitic Peridot 0.292ct Loose Stone Sale price¥98,000

[10/18 22:00 Sale] Brazilian London Blue Topaz 0.415ct Loose Sale price¥6,980

奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 0.439ctルース

[On Sale at 10 PM on October 18th] Rainbow Garnet (Andradite Garnet) 0.439ct Loose Stone from Tenkawa Village, Nara Prefecture Sale price¥8,800

[10/17 22:00 Sale] Brazilian Aquamarine 0.428ct Loose Stone Sale price¥8,800

[10/17 22:00 Sale] Padparadscha Sapphire 0.251ct Loose Stone Chuhokan Sale price¥45,800

[10/12 22:00 Sale] Chinese Cinnabar 1.358ct Loose Stone with Certificate of Authenticity Sale price¥22,800

[On Sale at 10 PM on October 21st] Russian Demantoid Garnet (Horsetail Certified) 0.487ct Loose Stone Sale price¥110,000

[Lottery Sale] 0.192ct Russian Demantoid Garnet Loose Stone Sale price¥98,000

[On Sale at 10 PM on October 12th] Russian Emerald 0.387ct Loose Stone (F1, Minor Enhancement) GIA Sale price¥128,000

[12551639] Triplite 0.322ct loose stone Sale price¥15,800

[On Sale at 10pm on October 5th] American Benitoite 0.262ct Loose Stone Sale price¥128,000

[10/10 22:00 Sale] Tanzanian Purple Sapphire 0.355ct Loose Sale price¥9,800

[On Sale at 10pm on October 8th] Afghanistan Hackmanite 0.134ct Loose Stone Sale price¥6,980

[On Sale at 10pm on October 8th] Afghanistan Hackmanite 0.121ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on October 8th] Pakistani Oil-in-Quartz 0.353ct Loose Stone (Faceted) Sale price¥8,800

[On Sale at 10 PM on October 6th] Madagascar Golden Iolite (Cordierite) 0.193ct Loose Stone Sale price¥8,800

[On Sale at 10 PM on October 6th] [Rouge Cut] Brazilian Bicolor Tourmaline 0.578ct Loose Stone Sale price¥9,800

[On Sale at 10pm on 10/9] Tanzanian Dragon Garnet 0.818ct Loose Stone Sale price¥22,800

[On Sale at 10 PM on October 9th] Tanzanian Dragon Garnet 5.0mm/0.767ct Loose Stone Sale price¥19,800

[On sale from 10/7 at 10pm] Zimbabwean sphene 0.978ct loose stone Sale price¥18,800

[10/11 22:00] Tanzanian Spessartine Garnet 0.209ct Loose Stone Sale price¥4,980

[On Sale at 10 PM on September 28th] Zimbabwean Bicolor Euclase 0.146ct Loose Stone Sale price¥35,800

マリ共和国産マリガーネット（グロッシュラー/アンドラダイト・ガーネット） 0.393ctルース

[Available at 10 PM on September 22nd] Mali Garnet (Grossular/Andradite Garnet) 4.2mm/0.393ct Loose Stone from the Republic of Mali with Certificate of Authenticity Sale price¥9,800

[On Sale at 10 PM on October 4th] Blue Sapphire 4.1mm/0.332ct Loose Sale price¥25,800

KARATZ Custom Made

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.

KARATZ・Five Commitments

So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.

KARATZ's Initiatives and Social Contributions

We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.

KARATZ Books

These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.

jeweler's tools

For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.