January birthstone
Many people may have the impression that garnet is a red gemstone, but it actually comes in many shades. In fact, garnet is not the name of a single gemstone, but the name of a group of minerals with similar chemical compositions. Also, there are some types that are made by mixing several types, so I think it would be fun to collect gemstones with different colors and types. Some types appear to change color depending on the light source.
Karatz GemMagazine “ List of January birthstones and birthstones ”
[11/13 22:00 Sale] Rhodolite Garnet 5.3mm/0.703ct Loose Stone
Sale price¥12,800
Russian Demantoid Garnet (Horsetail) 0.036ct Loose Stone
Sale price¥6,980
Russian Demantoid Garnet (Horsetail) 3.8mm/0.255ct Loose Stone
Sale price¥39,800
Mozambique Rhodolite Garnet 1.052ct Loose Stone
Sale price¥8,800
![[Shinjuku Marui Annex 202511] "Purple Sun" Ice Blue Sapphire, Amethyst, Bekiri Blue Garnet, and Tanzanite 13-Stone Half Eternity Ring Set (2.0mm)](http://store.karatz.jp/cdn/shop/files/collage_4817d101-289e-499a-a1ca-24bbaf1ded7c.png?v=1760146246&width=2250)
Russian Demantoid Garnet (Horsetail) 2.5mm/0.075ct Loose Stone
Sale price¥12,800
Russian Demantoid Garnet (Horsetail) 2.5mm/0.073ct Loose Stone
Sale price¥14,800
Mali Garnet (Grossular/Andradite Garnet) 4.5mm/0.497ct Loose
Sale price¥8,800
UV type mint garnet 0.521ct loose
Sale price¥3,980
Rouge Cut Almandine Garnet from Mozambique, 5.952ct Loose
Sale price¥15,800
Rouge Cut Almandine Garnet from Mozambique, 5.841ct Loose
Sale price¥14,800
Mozambique Almandine Garnet 2.959ct Loose Stone
Sale price¥19,800
Mozambique Almandine Garnet 1.652ct Loose Stone
Sale price¥15,800
Mozambique Almandine Garnet 7.7mm/1.781ct Loose Stone
Sale price¥18,800
[Shinjuku Marui Annex 202511] Tanzanian Dragon Garnet 0.850ct Loose
Sale price¥22,800
[Shinjuku Marui Annex 202511] Tanzanian Dragon Garnet 0.818ct Loose
Sale price¥22,800
[Shinjuku Marui Annex 202511] Tanzanian Dragon Garnet 0.931ct Loose
Sale price¥25,800
[Shinjuku Marui Annex 202511] Tanzanian Dragon Garnet 1.015ct Loose
Sale price¥29,800
Tanzanian Spessartine Garnet 0.209ct Loose Stone
Sale price¥4,980
![[5 sets left] Rainbow Garnet Rough Stone + 2 Loose Stones Set from Tenkawa Village, Nara Prefecture [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/9_622850c1-b0a5-4d6d-a4b7-e4d8395feec1.png?v=1758934193&width=4000)
Tanzanian Dragon Garnet 0.710ct Loose Stone
Sale price¥19,800
Color change garnet from Madagascar 0.648ct loose
Sale price¥8,800
American Anthill Garnet (Chrome Pyrope Garnet) 5mm/0.540ct Loose
Sale price¥22,800
Russian demantoid garnet (horsetail recognized) 0.291ct loose
Sale price¥49,800
YAG (yttrium aluminum garnet) 1.792ct loose
Sale price¥12,800
YAG (Yttrium Aluminum Garnet) 6.5mm/1.774ct loose stone
Sale price¥12,800
Tanzanian Bicolor Grossular Garnet 1.359ct Loose Stone
Sale price¥49,800
American Anthill Garnet 0.822ct Loose Stone
Sale price¥19,800
Leuko garnet from Myanmar 0.294ct loose
Sale price¥15,800
Russian demantoid garnet (horsetail recognized) 0.214ct loose
Sale price¥49,800
Russian demantoid garnet (horsetail recognized) 4.2mm/0.336ct loose
Sale price¥79,800
Russian demantoid garnet (horsetail recognized) 4.4mm/0.394ct loose
Sale price¥69,800
Russian demantoid garnet (horsetail recognized) 4.6mm/0.423ct loose
Sale price¥79,800
Russian demantoid garnet (horsetail recognized) 5.8mm/0.876ct loose
Sale price¥258,000
Russian demantoid garnet (horsetail recognized) 5.3mm/0.633ct loose
Sale price¥198,000
Tanzanian Almandine Garnet 2.992ct Loose Stone, Japan-Germany Exchange
Sale price¥15,800
Tanzanian Rhodolite Garnet 0.801ct Loose Stone
Sale price¥9,800
Tanzanian Rhodolite Garnet 0.405ct Loose Stone
Sale price¥6,980
Tanzanian Dragon Garnet 0.829ct Loose Stone
Sale price¥22,800
Tanzanian Dragon Garnet 1.019ct Loose Stone
Sale price¥25,800
Tanzanian Dragon Garnet 0.754ct Loose Stone
Sale price¥19,800
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.
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.