Custom Cut
[8/16 22:00 Sale] Sri Lankan Yellow Sapphire 0.300ct Loose
Sale price¥15,800
[On Sale at 10pm on August 10th] Australian Prehnite 1.527ct Loose Stone
Sale price¥12,800
[8/12 22:00 Sale] Brazilian London Blue Topaz 0.429ct Loose
Sale price¥6,980
[8/13 22:00 Sale] Brazilian London Blue Topaz 0.389ct Loose
Sale price¥6,980
Mexican Hyalite Opal 1.587ct Loose
Sale price¥9,800
[On Sale at 10 PM on August 9th] Madagascar Pink Sapphire 0.324ct Loose
Sale price¥12,800
[On Sale at 10 PM on August 13th] Madagascar Sapphire 0.298ct Loose
Sale price¥12,800
[On sale at 10pm on August 16th] Cambodian Zircon 0.414ct Loose
Sale price¥6,980
Unheated blue sapphire from Madagascar 1.310ct loose GIA
Sale price¥89,800
[On sale at 10pm on August 17th] Aquamarine 0.680ct loose stone
Sale price¥14,800
Tanzanite from Tanzania 0.237ct loose stone
Sale price¥8,800
Blue beryl (Macis beryl) 0.181ct loose stone
Sale price¥12,800
Mexican Fire Opal (Faceted Cut) 0.844ct Loose
Sale price¥15,800
Brazilian Green Tourmaline 3.943ct Loose Stone
Sale price¥39,800
Sri Lankan Yellow Sapphire 0.320ct Loose
Sale price¥15,800
Mexican Hyalite Opal 0.942ct Loose
Sale price¥9,800
Synthetic Alexandrite 0.460ct loose stone
Sale price¥14,800
Indonesian Parasitic Peridot Cat's Eye 0.489ct Loose Stone
Sale price¥158,000
Brazilian Rhodonite 1.558ct loose stone
Sale price¥22,800
[Takeshi Yamamoto] Brazilian Rock Crystal 12.725ct Loose
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.
業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。
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.