Oval Cut

[On Sale 11/23 10pm] 4.678ct Oregon Sunstone Loose Stone from the USA Sale price¥69,800

[On Sale 11/23 10pm] Madagascar Hot Pink Sapphire 1.120ct Loose GIA Sale price¥158,000

[12561382] Tanzanian Bicolor Sapphire 0.380ct Loose Sale price¥18,800

[12561378] Sri Lankan pink zircon 1.991ct loose stone Sale price¥29,800

[12561374] Indian Iolite Sunstone 0.540ct Loose Sale price¥8,800

[On Sale at 10 PM on November 20th] Brazilian Yellow Beryl 9.747ct Loose Stone Sale price¥98,000

[11/18 22:00] Oregon Sunstone from the United States, 2.594ct Loose Sale price¥39,800

[11/17 22:00 Sale] Oregon Sunstone from the United States, 0.530ct Loose Sale price¥15,800

[11/18 22:00 Sale] Afghanistan Kunzite 7.335ct Loose Stone Sale price¥29,800

[On Sale 11/16 10pm] Madagascar Dumortierite (Single Crystal) 0.195ct Loose Stone Sale price¥89,800

[On sale 11/23 at 10pm] Synthetic Rutile 6.1mm/1.312ct Loose Stone Sale price¥18,800

[11/14 22:00 Sale] Afghanistan Kunzite 3.973ct Loose Stone Sale price¥12,800

[On Sale 11/9 at 10pm] Brazilian Indigolite Tourmaline 0.210ct Loose Stone with Certificate of Authenticity Sale price¥9,800

[12561017] Indigolite Tourmaline 0.724ct Loose Stone Sale price¥19,800

[11/20 22:00 Sale] Tanzanian Almandine Garnet 2.972ct Loose Stone Sale price¥18,800

[On Sale 11/8 at 10pm] Russian Demantoid Garnet 0.192ct Loose Stone Sale price¥79,800

[On Sale 11/3 at 10pm] Mozambique Rubellite 0.814ct Loose Stone Sale price¥39,800

[11/2 22:00 Sale] Sri Lankan Blue Sapphire 0.187ct Loose Sale price¥29,800

[11/2 22:00] Brazilian Pink Tourmaline 2.765ct Loose Stone Sale price¥69,800

[11/1 22:00 Sale] Sri Lankan saffron 0.738ct loose stone Sale price¥98,000

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

[On Sale 11/3 at 10 PM] Tanzanian Yellow Zoisite 0.684ct Loose Stone with Certificate of Authenticity Sale price¥19,800

[On Sale 11/6 at 10pm] Colombian Bicolor Fluorite 3.209ct Loose Stone Sale price¥18,800

[11/14 22:00 Sale] Madagascar Pezzottaite 0.198ct Loose Stone Sale price¥15,800

[On sale at 10pm on November 7th] Tanzanite from Tanzania 0.637ct loose stone Sale price¥15,800

[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 Recognized) 0.110ct Loose Sale price¥49,800

[10/31 22:00 Sale] German Auchenite 0.063ct Loose Stone Sale price¥29,800

[10/31 22:00 Sale] German Auchenite 0.073ct Loose Stone Sale price¥32,800

[11/1 22:00 Sale] Brazilian Elestial Amethyst 1.378ct Loose Stone Sale price¥12,800

[11/1 22:00 Sale] Brazilian Elestial Amethyst 0.970ct Loose Stone Sale price¥7,980

[11/18 22:00 Sale] Colombian Euclase 1.817ct Loose Stone Sale price¥29,800

Vietnamese aquamarine 0.729ct loose stone Sale price¥8,800

Tibetan Andesine 0.361ct Loose Stone Sale price¥8,800

Brazilian Medusa Quartz (Paraiba Quartz) 0.614ct Loose Stone Sale price¥9,800

Mexican Opal (Faceted) 0.242ct Loose Sale price¥8,800

Russian Demantoid Garnet (Horsetail) 0.036ct Loose Stone Sale price¥6,980

Brazilian Aquamarine 0.334ct Loose Stone Sale price¥6,980

0.424ct Indian Chrysoberyl Loose Stone (Canary Yellow) Sale price¥15,800

Mozambique Rhodolite Garnet 1.052ct Loose Stone Sale price¥8,800

American Benitoite 0.185ct Loose Stone Sale price¥128,000

American Benitoite 0.175ct Loose Stone Sale price¥128,000

Russian Demantoid Garnet (Horsetail) 0.487ct Loose Stone Sale price¥110,000

Pakistani sphene 0.489ct loose stone Sale price¥11,000

Pakistani sphene 0.396ct loose stone Sale price¥9,800

German Auchenite 0.095ct loose stone Sale price¥39,800

German Auchenite 0.085ct loose stone Sale price¥45,800

German Auchenite 0.083ct loose stone Sale price¥45,800

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.