Mexican Fire Opal 0.343ct Loose
Sale price¥15,800
Blue sapphire 1.432ct loose stone
Sale price¥39,800
Thai Blue Sapphire 0.388ct Loose
Sale price¥9,800
Thai Blue Sapphire 0.740ct Loose
Sale price¥15,800
Sri Lankan pink sapphire 4.1mm/0.326ct loose stone
Sale price¥12,800
Sri Lankan White Sapphire 4.0mm/0.275ct Loose
Sale price¥12,800
Sri Lankan pink sapphire 4.0mm/0.296ct loose stone
Sale price¥12,800
Sri Lankan Blue Sapphire 4.0mm/0.414ct Loose Stone
Sale price¥15,800
Mexican Fire Opal 4.8mm/0.336ct Loose
Sale price¥5,980
Mexican Opal 4.9mm/0.327ct Loose
Sale price¥9,800
Mexican Opal 3.8mm/0.157ct Loose
Sale price¥6,980
Unheated silky sapphire from Sri Lanka 0.721ct loose stone
Sale price¥14,800
Sri Lankan Blue Sapphire 0.344ct Loose
Sale price¥12,800
Madagascar White Sapphire 0.490ct Loose JTL
Sale price¥12,800
Madagascar Yellow Sapphire 0.571ct Loose
Sale price¥14,800
Madagascar pink sapphire 0.594ct loose stone
Sale price¥14,800
Madagascar sapphire 0.647ct loose stone
Sale price¥14,800
Madagascar sapphire 0.564ct loose stone
Sale price¥12,800
South African diamond rough (sawable) 0.112ct rough
Sale price¥44,800
South African diamond rough (sawable) 0.091ct rough (trigon)
Sale price¥35,800
Sri Lankan Star Sapphire 1.237ct Loose
Sale price¥15,800
Colombian pyrite in emerald 15.291ct loose
Sale price¥1,000,000
Brazilian copper rutilated quartz 6.8mm/1.206ct loose stone
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.282ct Loose
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.826ct Loose
Sale price¥25,800
Yellow Diamond (Cabochon Cut) 0.185ct Loose
Sale price¥25,800
Brown diamond (sugarloaf cut) 0.278ct loose (SI class equivalent)
Sale price¥45,800
K18YG Afghan Kunzite 0.74ct, Tanzanite, Sapphire Ring
Sale price¥79,800
Colombian emerald rough stone 37.764ct (Gachala mine)
Sale price¥598,000
![[On sale from 10pm on 12/29] Sri Lankan blue sapphire and 10 Vietnamese silky pink sapphires in a half eternity ring set (approx. 2.6mm)](http://store.karatz.jp/cdn/shop/files/P1010116_672b9da8-e8b2-4ece-bf77-5820dff2b5f9.jpg?v=1735111884&width=4000)
13-stone diamond half eternity ring set (VS class, D-G color, H&C, 2.0mm)
Sale price¥158,000
Colombian Trapiche Emerald 0.923ct Rough Stone
Sale price¥45,800
Diamond 4.1mm/0.263 Loose (I, VVS2, 3Excellent H&C)
Sale price¥55,800
Diamond 3.8mm/0.200 loose (E, VVS1, VeryGood)
Sale price¥39,800
Diamond 3.8mm/0.220 Loose (H, VS1, 3Excellent H&C)
Sale price¥45,800
Diamond 3.8mm/0.209 Loose (G, VVS1, 3Excellent H&C)
Sale price¥59,800
Fancy Yellow Diamond 0.227 Loose (FANCY YELLOW, I-2)
Sale price¥59,800
Ethiopian Opal 41.967ct Rough Stone
Sale price¥33,800
Ethiopian Opal 15.845ct Rough Stone
Sale price¥15,800
Ethiopian Opal 14.344ct Rough Stone
Sale price¥14,800
Madagascar sapphire 0.153ct loose stone
Sale price¥6,980
Madagascar sapphire 0.157ct loose stone
Sale price¥6,980
Madagascar sapphire 0.158ct loose stone
Sale price¥7,980
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.