Birthstone list
【KARAFURU】K18 Diamond 0.15ct Pendant Top (Necklace Top)
Sale price¥29,800
Loose 0.824 ct Colombian Bi-Color Emerald
Sale price¥25,800
1.082ct Loose Australian Black Opal with Certification
Sale price¥69,800
Australian Black Opal 0.778ct Loose
Sale price¥35,800
Pink Diamond 0.075ct Loose (FANCY PURPLE PINK, SI1)
Sale price¥79,800
Brown Diamond 0.728ct Loose (FANCY DARK BROWN, SI2)
Sale price¥49,800
Brown Diamond 0.778 ct Loose (FANCY BROWN, SI1)
Sale price¥59,800
Loose Brown Diamond 5.0mm/0.556ct (FANCY LIGHT BROWN, VS-1)
Sale price¥39,800
Diamond 3.7mm/0.185ct Loose (D, VVS-2, 3Excellent H&C)
Sale price¥39,800
Brazilian Green Tourmaline 0.770ct Loose Stone with Appraisal Report
Sale price¥25,800
Malawi Moonstone (Malawi) 1.651ct Loose
Sale price¥8,800
Malawian Moonstone (Malawi Moonstone) 2.184ct Loose
Sale price¥13,800
Malawi Moonstone 1.948ct Loose Gemstone
Sale price¥8,800
Malawi Moonstone (Malawi Moonstone) 3.158ct Loose Gemstone
Sale price¥18,800
Malawi Moonstone 2.102ct Loose
Sale price¥14,800
Malawi Moonstone 1.747ct Loose
Sale price¥8,800
0.191ct Colombian emerald loose stone, Hōki-kyō
Sale price¥45,800
0.809ct Loose Bicolor Grossular Garnet from Kenya
Sale price¥25,800
[Listed as 22602651] [Colorful] K9 Ruby Pendant Top (Necklace Top)
Sale price¥19,800
[22602646 listed] [Karafuri] Pt850 Blue Sapphire 0.66ct Ring
Sale price¥59,800
[Listed as 12563264] Rough Russian Diamond (Sawable) 0.124ct
Sale price¥39,800
Sierra Leonean Rough Diamond (Sawable) 0.072 ct. [12563273 Listed]
Sale price¥22,800
[Lottery Sale_0612_09] Yellow Sapphire 2.150ct Loose Gemstone GIT
Sale price¥158,000
[Lottery Sale 0428_2_07] Watermelon Tourmaline 14.780ct Loose Stone
Sale price¥128,000
Diamond 3.0mm/0.100ct Loose (E, VVS-2, VeryGood)
Sale price¥22,800
Diamond 3.8mm/ 0.198ct Loose (D, VVS-2, VeryGood)
Sale price¥29,800
Green Diamond 0.100ct Loose (VERY LIGHT GREEN, SI-1, Old Cut)
Sale price¥39,800
Diamond 0.229ct Loose (D, VS2, Flanders Cut)
Sale price¥39,800
[Calafuri] Pt900 Rough Diamond 2.733ct, Diamond 0.68ct Ring with Certificate
Sale price¥198,000
【Colorfleur】Pt900 Black Opal 0.58ct Pendant Top with Authenticity Card
Sale price¥55,800
Bicolor Grossular Garnet from Tanzania 0.839ct Loose
Sale price¥19,800
Tanzanian Bicolor Grossular Garnet 0.934ct Loose
Sale price¥24,800
Bicolor Grossular Garnet from Tanzania 0.779ct Loose Stone
Sale price¥19,800
Bicolor Grossular Garnet from Tanzania 0.602ct Loose Stone
Sale price¥16,800
Tanzanian Bicolor Grossular Garnet 0.787ct Loose Stone
Sale price¥19,800
Tanzanian Bi-Color Grossular Garnet 0.882ct Loose Stone
Sale price¥22,800
Tanzanian Bicolor Grossular Garnet 0.544ct Loose Gemstone
Sale price¥14,800
Bicolor Grossular Garnet from Tanzania 0.855ct Loose Stone
Sale price¥18,800
Tanzanian Bicolor Grossular Garnet 0.586ct Loose Stone
Sale price¥14,800
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.