Ka row

[On sale until 10 PM] Limited to 10 stones: Yamamoto Cut Gacha, featuring carnelian, lemon quartz, rock crystal, and more. Discounts available for multiple purchases. Sale price¥7,980

[12/13 10 PM Sale] {Limited to 13 Stones} Tourmaline Gacha: Including Indigolite Tourmaline worth ¥50,000 and Rubellite worth ¥60,000. Plus, get one Canary Yellow Tourmaline. {Multiple Purchase Discounts Available} Sale price¥5,980

[Sale at 10 PM on December 20th] [Limited to 6 stones] Brazilian Pyrite in Quartz Loose Stone (Average 3.2 carats) [Multiple purchase discounts available] Sale price¥3,980

Russian demantoid garnet cat's eye (horsetail recognized) 0.171ct loose Sale price¥15,800

Russian demantoid garnet cat's eye (horsetail recognized) 0.222ct loose Sale price¥18,800

Goshenite 1.620ct loose Sale price¥15,800

Goshenite 1.989ct loose Sale price¥18,800

Brazilian kyanite in quartz 13.740ct loose Sale price¥29,800

Brazilian kyanite in quartz 4.770ct loose Sale price¥12,800

Star garnet 14.600ct loose Sale price¥11,000

Brazilian Medusa Quartz (Paraiba Quartz) 10.298ct loose Sale price¥7,980

Brazilian Medusa Quartz (Paraiba Quartz) 5.809ct loose Sale price¥6,980

Brazilian Medusa Quartz (Paraiba Quartz) 3.441ct loose Sale price¥3,980

Brazilian Medusa Quartz (Paraiba Quartz) 2.757ct loose Sale price¥3,980

Bicolor chrysoberyl from Madagascar 1.590ct loose Sale price¥19,800

Bicolor chrysoberyl from Madagascar 1.520ct loose Sale price¥18,800

Kunzite from Afghanistan 26.784ct loose Sale price¥59,800

Brazilian dumortierite in quartz 4.592ct loose Sale price¥9,800

[12/17 22:00 Sale] Russian Demantoid Garnet (Horsetail Certified) 4.2mm/0.325ct Loose Stone Sale price¥59,800

[On Sale at 10 PM on December 7th] Rainbow Garnet (Andradite Garnet) 2.365ct Loose Stone from Tenkawa Village, Nara Prefecture Sale price¥12,800

[12/7 22:00] Brazilian Dumortierite in Quartz 16.250ct Loose Stone Sale price¥9,800

[12/14 22:00 Sale] Tanzanian Chrome Tourmaline 0.164ct Loose Stone Sale price¥9,800

[12/9 22:00] Brazilian Lavender Quartz (Scorolite) 0.994ct Loose Stone Sale price¥8,800

[12/12 22:00 Sale] Synthetic Quartz 0.430ct Loose Stone (Synthetic Green Quartz) Sale price¥6,980

[12/10 22:00] Mali Garnet (Grossular/Andradite Garnet) 1.008ct Loose Stone from the Republic of Mali with Certificate of Authenticity Sale price¥35,800

[12/12 22:00 Sale] Mali Garnet (Grossular/Andradite Garnet) 0.811ct Loose Stone from the Republic of Mali with Certificate of Authenticity Sale price¥29,800

[12/12 22:00 Sale] Mali Garnet (Grossular/Andradite Garnet) 0.741ct Loose Stone from the Republic of Mali with Certificate of Authenticity Sale price¥25,800

[12/12 22:00 Sale] Brazilian Dumortierite in Quartz 1.131ct Loose Stone Sale price¥12,800

[12/12 22:00 Sale] Synthetic Opal 0.856ct Loose (Synthetic Water Opal) Sale price¥8,800

Chrome tourmaline 0.300ct loose stone Sale price¥2,980

Mexican cantera opal 15.542ct loose Sale price¥15,800

Mexican cantera opal 9.422ct loose Sale price¥25,800

Mexican cantera opal 7.563ct loose Sale price¥15,800

[12/21 22:00] Rainbow Garnet (Andradite Garnet) 7.0mm/2.135ct Loose Stone from Tenkawa Village, Nara Prefecture Sale price¥12,800

[12/21 22:00] Mexican Cantera Opal 9.166ct Loose Sale price¥69,800

[12/17 22:00] Brazilian Dumortierite in Quartz 2.012ct Loose Stone Sale price¥14,800

Brazilian Medusa Quartz (Paraiba Quartz) 3.919ct loose Sale price¥6,980

Bicolor grossular garnet 0.782ct loose Sale price¥12,800

Chrysoberyl cat's eye 2.283ct loose Sale price¥12,800

Chrysoberyl cat's eye 2.553ct loose (bicolor) Sale price¥39,800

[12/16 22:00] Brazilian Dumortierite in Quartz 10.0mm/5.357ct Loose Stone Sale price¥39,800

[12/16 22:00] Brazilian Rose Quartz 4.019ct Loose Stone Sale price¥11,000

[12/16 22:00] Brazilian Rose Quartz 1.848ct Loose Stone Sale price¥9,800

[12/13 22:00] Brazilian Rose Quartz 2.167ct Loose Stone Sale price¥9,800

[12/20 22:00 Sale] Brazilian Gashenite 0.527ct Loose Stone Sale price¥8,800

[Available at 10 PM on December 20th] Mali Garnet (Grossular/Andradite Garnet) 0.872ct Loose Stone from the Republic of Mali with Certificate of Authenticity Sale price¥29,800

[12/21 22:00] Myanmar Leuco Garnet 0.542ct Loose Stone with Certificate of Authenticity Sale price¥39,800

[Rouge cut] Almandine garnet 2.090ct loose Sale price¥8,800

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.