Width: 4.1 - 5.0mm

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

[12/14 22:00 Sale] Sinhalite from Sri Lanka 0.434ct Loose Stone Sale price¥8,800

[12/7 22:00 Sale] Mexican Egg-in Opal 0.381ct Loose Sale price¥18,800

[On Sale at 10 PM on December 7th] Madagascar Andesine Labradorite Moonstone (also known as Rainbow Moonstone) 0.178ct Loose Stone Sale price¥9,800

[12/7 22:00] Brazilian Rubellite 0.332ct Loose Stone Sale price¥12,800

[12/7 22:00] American Peridot 0.385ct Loose Stone Sale price¥8,800

[12/9 22:00 Sale] Sinhalite from Sri Lanka 0.658ct Loose Stone Sale price¥9,800

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

[12/10 22:00 Sale] Pakistani Ludwigite Peridot 0.609ct Loose Stone Sale price¥6,980

[12/14 22:00] Brazilian Pink Tourmaline 5.0mm/0.484ct Loose Stone (Rose Cut) Sale price¥8,800

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

[12/13 22:00 Sale] Brazilian Green Tourmaline 0.821ct Loose Stone Sale price¥12,800

[12/22 22:00] Mozambique Ruby 0.537ct Loose Sale price¥15,800

[12/16 22:00 Sale] Green Sapphire 0.607ct Loose Sale price¥12,800

[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

[On Sale 11/30 at 10pm] Brazilian Indigolite Tourmaline 0.431ct Loose Stone with Certificate of Authenticity Sale price¥29,800

[11/29 22:00 Sale] Tanzanian Almandine Garnet 1.282ct Loose Stone Sale price¥13,800

[12/2 22:00] Tanzanian Almandine Garnet 1.164ct Loose Stone Sale price¥12,800

[12/2 22:00] Tanzanian Almandine Garnet 0.930ct Loose Stone Sale price¥9,800

[11/26 22:00] Tanzanian Almandine Garnet 0.902ct Loose Stone Sale price¥12,800

[11/29 22:00 Sale] Tanzanian Almandine Garnet 0.750ct Loose Stone Sale price¥9,800

[11/27 22:00 Sale] Indian Iolite Sunstone 0.540ct Loose Sale price¥8,800

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

[On Sale 11/18 10pm] Brazilian Green Tourmaline 5.0mm/0.401ct Loose Stone (Rose Cut) Sale price¥9,800

[11/17 22:00 Sale] Sri Lankan Green Zircon 0.734ct Loose Sale price¥12,800

[11/10 22:00 Sale] Silky Pink Sapphire from Madagascar 1.050ct Loose GIT Sale price¥128,000

Colombian oil-free emerald 0.290ct loose GIA Sale price¥188,000

[11/9 22:00 Sale] Ethiopian Sunstone 0.505ct Loose Sale price¥8,800

[11/13 22:00 Sale] Russian Phenakite 0.520ct Loose Stone Sale price¥24,800

[On Sale 11/3 at 10pm] Myanmar Bicolor Star Sapphire 0.640ct Loose Sale price¥45,800

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

[On Sale 11/2 at 10pm] Zimbabwean Sphene 4.7mm/0.400ct Loose Stone Sale price¥9,800

[11/2 22:00 Sale] Colombian Euclase 0.546ct Loose Stone Sale price¥25,800

[On Sale 11/2 at 10 PM] Mexican Opal 0.233ct Loose (Faceted) Sale price¥12,800

[11/2 22:00] Mexican Hyalite Opal 0.743ct Loose Sale price¥12,800

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

Brazilian Indigolite Tourmaline 0.649ct Loose Stone with Certificate of Authenticity Sale price¥39,800

Brazilian Indigolite Tourmaline 0.634ct Loose Stone with Certificate of Authenticity Sale price¥39,800

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

Pakistani Peridot 1.176ct Loose Stone Sale price¥9,800

[10/31 22:00 Sale] Sri Lankan Purple Spinel 1.060ct Loose Sale price¥98,000

[On Sale at 10 PM on October 31st] Madagascar Bicolor Sapphire 0.633ct Loose Sale price¥39,800

[On Sale 11/23 10pm] Greenland Ruby 0.360ct Loose Stone with Certificate Sale price¥69,800

[11/1 22:00 Sale] Mozambique Rhodolite Garnet 0.835ct Loose Stone Sale price¥12,800

Vietnamese aquamarine 0.544ct 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.