Birthstone list
Paraiba tourmaline from Brazil 0.154ct loose (CuO:1.1wt%, MnO:1.4wt%)
Sale price¥128,000
[Posted 32501454] Pink Diamond 0.051ct Loose (FANCY LIGHT PINK, SI-2)
Sale price¥39,800
Russian demantoid garnet (horsetail recognized) 0.291ct loose
Sale price¥49,800
Royal blue sapphire 1.44ct loose GIA
Sale price¥188,000
[Camellia cut] Mexican fire opal 1.270ct loose with patch
Sale price¥98,000
Brazilian particolor Paraiba tourmaline 0.26ct loose GIA
Sale price¥598,000
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
Brazilian Paraiba tourmaline 0.226ct loose (CuO:0.7%, MnO:2.5%)
Sale price¥39,800
Bicolor pink star sapphire from Mogok 0.360ct loose
Sale price¥24,800
Pt950 Benitoite 0.10ct Aquamarine Blue Diamond Ring
Sale price¥89,800
Bicolor tourmaline 0.591ct loose (rose cut)
Sale price¥8,980
Bicolor tourmaline 0.435ct loose (rose cut)
Sale price¥5,980
Pink tourmaline 0.482ct loose stone
Sale price¥5,980
[12549429] Blue sapphire 0.862ct loose stone
Sale price¥25,800
![[On sale at 10 PM on September 21st] Limited to 14 stones: Beryllium-heated Sapphire (3.5mm, KEN Cut) - Single Loose Stone [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010016_abbaadd4-abc6-4f95-9926-76bbf33dc3a4.jpg?v=1758169059&width=4000)
[On Sale at 10 PM on October 4th] Blue Sapphire 4.1mm/0.332ct Loose
Sale price¥25,800
[On sale at 10pm on September 30th] Blue sapphire 0.291ct loose stone
Sale price¥18,800
[On Sale at 10pm on October 1st] Australian Boulder Opal 9.120ct Loose
Sale price¥98,000
[On Sale at 10pm on October 1st] 1.406ct Loose Rubellite from Mozambique
Sale price¥69,800
![[On Sale at 10:00 PM on October 4th] Brazilian Swiss Blue Topaz 1.065ct Loose](http://store.karatz.jp/cdn/shop/files/P9248792_9b97c5dc-bbef-45b1-b0fa-199b754aabdf.jpg?v=1759411715&width=3145)
[On sale at 10pm on September 20th] Indian Moonstone 2.415ct Loose
Sale price¥15,800
UV opal from Hokkaido 12.259ct loose with patch
Sale price¥6,980
Pink star sapphire 0.619ct loose
Sale price¥5,980
Paracytic peridot 0.536ct loose
Sale price¥188,000
Bicolor star sapphire from Myanmar 1.190ct loose (pink sapphire)
Sale price¥25,800
Sierra Leone sapphire 1.210ct loose
Sale price¥7,980
Sierra Leone sapphire 1.470ct loose
Sale price¥9,800
Leuko garnet from Myanmar 0.294ct loose
Sale price¥15,800
Paraiba tourmaline from Brazil 0.205ct loose (CuO:0.8%, MnO:3.1%)
Sale price¥39,800
Paraiba tourmaline from Brazil 0.167ct loose (CuO:1.6%, MnO:3.0%)
Sale price¥29,800
Paraiba tourmaline from Brazil 0.086ct loose (CuO:1.5%, MnO:2.3%)
Sale price¥18,800
Paraiba tourmaline from Brazil 0.226ct loose (CuO:0.7%, MnO:3.6%)
Sale price¥39,800
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.