K18YG Tanzanian Tanzanite 0.344ct Pendant Top
Sale price¥39,800
K18YG rose cut diamond 0.171ct ring
Sale price¥89,800
18K Yellow Gold Colombian Emerald Ring
Sale price¥128,000
K18YG Indian Moonstone Cat's Eye 1.438ct Ring
Sale price¥79,800
K18PG Brazilian Paraiba Tourmaline 0.286ct Grandidierite Ring GIA
Sale price¥198,000
18KPG pink sapphire 0.32ct brown diamond ring
Sale price¥69,800
K18/Pt950 Afghanistan Green Apatite 0.162ct Ring
Sale price¥158,000
K18PG Madagascar pink sapphire 0.24ct 0.25ct earrings (Asscher cut)
Sale price¥59,800
K18/Pt950 Cambodian Blue Zircon 0.48ct Paraiba Tourmaline Ring
Sale price¥89,800
[12530532 published] Diamond 1.166ct loose
Sale price¥59,800
[Moonsteiner] Pyrite in Quartz 8.099ct
Sale price¥59,800
[Dandelion Cut] 7mm/1.412ct Sphene Loose Stone from Madagascar
Sale price¥59,800
[Star in cut] Mexican fire opal 7mm/0.678ct loose patch
Sale price¥49,800
【Sakura Shape】Synthetic Sapphire 8.8mm/3.631ct Loose Stone
Sale price¥39,800
![[Sakura Shape] Synthetic Sapphire 3.285ct Loose Stone](http://store.karatz.jp/cdn/shop/files/20260201_P2058639.jpg?v=1770602742&width=4000)
[Sakura Shape] Synthetic Sapphire 3.285ct Loose Stone
Sale price¥39,800
![[Sakura In-Cut] Mongolian Color Change Andesine 6.0mm/0.655ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC240511_999dac6d-5929-47d3-bac6-fb5d3f71b923.jpg?v=1767309485&width=3249)
![[Sakura InCut] Synthetic Sapphire 2.610ct Loose Stone (Synthetic Pink Sapphire)](http://store.karatz.jp/cdn/shop/files/20260201_P2059052.jpg?v=1775550000&width=4000)
![[Sakura Incut] Sphene from Madagascar 6.0mm/0.865ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC251416.jpg?v=1767749854&width=4000)
[Sakura Incut] Sphene from Madagascar 6.0mm/0.865ct Loose Stone
Sale price¥49,800
[Clover in cut] Mexican opal 7mm/0,648ct {Collaboration} Loose patch
Sale price¥45,800
[Colorful] Pt900 Black Opal 0.83ct / Diamond 0.62ct Ring with Certificate
Sale price¥228,000
[Camellia cut] Mexican fire opal 1.270ct loose with patch
Sale price¥98,000
[5/5 10 PM Sale] German Hauyne 0.122ct Loose Stone
Sale price¥49,800
![[On Sale May 4th at 10 PM] Madagascar Grandidierite 0.090ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P4074010_3b6aee6d-0726-4d5b-ba9b-3d28eb823ac5.jpg?v=1777760608&width=2692)
[On Sale May 4th at 10 PM] Madagascar Grandidierite 0.090ct Loose Stone
Sale price¥18,800
Madagascar sphene 0.838ct loose stone
Sale price¥9,800
Madagascar sphene 0.569ct loose stone
Sale price¥6,980
Non-Oil Emerald 1.370ct Loose GIA
Sale price¥1,580,000
Non-Oil Emerald 0.555ct Loose Stone by Nikkei
Sale price¥288,000
Brazilian Romanesite in Amethyst 7.083ct Loose Stone
Sale price¥15,800
German Awinite 0.056ct loose stone
Sale price¥22,800
Colombian emerald 0.512ct loose stone (silky type)
Sale price¥12,800
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.