0.3ct - 0.5ct

[On Sale 11/1 at 10pm] Tanzanian Kornerupine 0.324ct Loose Stone Sale price¥29,800

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

[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) 3.0mm/0.135ct Loose Stone Sale price¥25,800

[On Sale at 10 PM on October 31st] Russian Demantoid Garnet (Horsetail Recognized) 0.110ct Loose Sale price¥49,800

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

[On Sale at 10pm on October 31st] Madagascar Grandidierite 0.168ct Loose Stone Sale price¥35,800

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

[11/1 22:00 Sale] Zimbabwean Bicolor Euclase 0.398ct Loose Stone Sale price¥39,800

[On Sale at 10 PM on October 29th] Brazilian Indigolite Tourmaline 0.222ct Loose Stone with Certificate of Authenticity Sale price¥11,000

[On Sale at 10 PM on October 29th] Mexican Fire Opal 5.8mm/0.345ct Loose 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 10pm on 10/29] Tanzanian Mint Diopside 0.290ct Loose Stone Sale price¥9,800

[On Sale at 10pm on 10/29] Tanzanian Mint Diopside 0.364ct Loose Stone Sale price¥9,800

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

[On Sale at 10 PM on October 28th] Brazilian Kasharai Amethyst 5.6mm/0.460ct Loose Stone Sale price¥8,800

Bicolor tourmaline 0.549ct loose (rose cut) Sale price¥8,800

[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

[On Sale at 10pm on 10/22] Indian Iolite Sunstone 0.321ct Loose Sale price¥8,800

[On Sale at 10 PM on October 25th] Mexican Opal (Faceted) 0.242ct Loose Sale price¥8,800

[On Sale 10/23 10pm] Russian Demantoid Garnet (Horsetail Certified) 3.8mm/0.255ct Loose Stone Sale price¥39,800

[On Sale at 10pm on 10/23] Brazilian Aquamarine 0.334ct Loose Stone Sale price¥6,980

[On Sale at 10 PM on October 24th] Indian Chrysoberyl 0.424ct Loose Stone (Canary Yellow) Sale price¥15,800

[10/13 22:00 Sale] Pakistani Veirinite 0.147ct Loose Stone with Certificate of Authenticity Sale price¥36,800

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

[10/13 22:00 Sale] American Benitoite 0.175ct Loose Stone Sale price¥128,000

[10/12 22:00 Sale] Pakistani Veirinite 0.145ct Loose Stone with Certificate of Authenticity Sale price¥36,800

[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

[On Sale 10/18 10 PM] Tanzanian Peristerite 5.1mm/0.458ct Loose Stone (Rose Cut) Sale price¥9,800

[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 Morganite 0.484ct Loose Stone Sale price¥12,800

[10/17 22:00 Sale] Brazilian Morganite 0.377ct Loose Stone Sale price¥8,800

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

[10/17 22:00 Sale] Sri Lankan Peristerite 0.272ct Loose Stone Sale price¥11,000

[On Sale at 10 PM on October 17th] Pigeon Blood Ruby 4.0mm/0.290ct Loose Stone AIGS Sale price¥59,800

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

[10/17 22:00 Sale] Padparadscha Sapphire 0.376ct Loose Stone Chuhokan Sale price¥55,800

[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 19th] Greenland Ruby 3.6mm/0.220ct Loose Stone with Certificate Sale price¥39,800

[On Sale at 10 PM on October 19th] Greenland Ruby 3.6mm/0.210ct Loose Stone with Certificate Sale price¥45,800

[On Sale at 10 PM on October 19th] Greenland Ruby 3.0mm/0.134ct Loose Stone with Certificate Sale price¥25,800

[10/19 22:00 Sale] Pakistani Sphene 0.489ct Loose Stone Sale price¥11,000

[10/19 22:00 Sale] Pakistani Sphene 0.396ct Loose Stone Sale price¥9,800

インド産アンデシン・ラブラドライト（通称名レインボームーンストーン） 0.450ctルース

[On Sale at 10 PM on October 19th] Indian Andesine Labradorite (also known as Rainbow Moonstone) 0.450ct Loose Stone Sale price¥9,800

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.