Colombian emerald 0.512ct loose stone (silky type)
Sale price¥14,800
Diamond 3.4mm/0.144ct loose stone (I, VS1, Good)
Sale price¥16,800
Colombian pyrite-mica emerald 0.844ct loose stone
Sale price¥35,800
Aventurine Aquamarine 2.820ct Loose
Sale price¥6,980
Brazilian Romanesite in Amethyst 7.083ct Loose Stone
Sale price¥18,800
Brazilian Romanesite in Quartz 2.914ct loose stone
Sale price¥9,800
Brazilian Flower Quartz 6.545ct Loose Stone
Sale price¥18,800
Brazilian Flower Quartz 4.666ct Loose Stone
Sale price¥12,800
Brazilian Flower Quartz 6.928ct Loose Stone
Sale price¥17,800
Brazilian Flower Quartz 6.004ct Loose Stone
Sale price¥15,800
Brazilian Flower Quartz 7.144ct Loose Stone
Sale price¥17,800
Brazilian Flower Quartz 6.501ct Loose Stone
Sale price¥16,800
Brazilian Flower Quartz 6.582ct Loose Stone
Sale price¥16,800
Tanzanian Chrome Tourmaline 0.988ct Loose Stone
Sale price¥6,980
Tanzanian Chrome Tourmaline 0.772ct Loose Stone
Sale price¥6,980
Tanzanian Chrome Tourmaline 0.798ct Loose Stone
Sale price¥6,980
Tanzanian Chrome Tourmaline 0.546ct Loose Stone
Sale price¥4,980
Tanzanian Chrome Tourmaline 0.522ct Loose Stone
Sale price¥5,980
Tanzanian Chrome Tourmaline 0.859ct Loose Stone
Sale price¥8,800
Brazilian Alexandrite 0.066ct loose stone
Sale price¥12,800
Brazilian Alexandrite 0.094ct Loose Stone (Silky)
Sale price¥18,800
Ethiopian honeycomb opal 3.566ct loose stone
Sale price¥46,800
Mexican Opal 9.6mm/1.803ct Loose (Contralus Opal)
Sale price¥69,800
Ethiopian Opal 0.961ct Loose (Sphere)
Sale price¥7,980
Tanzanian Mandarin Garnet 0.449ct Loose Stone
Sale price¥39,800
Tanzanian Mandarin Garnet 0.361ct Loose Stone
Sale price¥14,800
[Koshu Precious Stones Plusthree] Rose Quartz 7.293ct Loose
Sale price¥29,800
[Koshu Precious Stones plusthree] Citrine 5.121ct Loose
Sale price¥39,800
![[Koshu Precious Stones Plusthree] Tibetan Andesine 7.873ct [Collaboration] Loose Stone (Color Change Andesine)](http://store.karatz.jp/cdn/shop/files/collage_4f5b4421-c714-46aa-aee2-16359b25e490.png?v=1714140601&width=2000)
Unheated Mozambique ruby 2.7mm/0.135ct loose stone
Sale price¥19,800
Brazilian Alexandrite 3.1mm/0.142ct loose stone (silky type)
Sale price¥35,800
Colombian pyrite-mica emerald 0.815ct loose stone
Sale price¥39,800
Chrysoberyl cat's eye 1.088ct loose stone
Sale price¥8,800
Colombian Trapiche Emerald 0.317ct Rough Stone
Sale price¥19,800
Colombian Trapiche emerald 0.424ct rough stone
Sale price¥39,800
Benitoite 1.8mm/0.025ct loose stone (colorless benitoite)
Sale price¥12,800
Benitoite 1.8mm/0.025ct loose stone (colorless benitoite)
Sale price¥15,800
Benitoite 1.8mm/0.028ct loose stone (colorless benitoite)
Sale price¥14,800
Nigerian Morganite 0.527ct loose stone
Sale price¥8,800
Nigerian Morganite 0.725ct loose stone
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.
The fifth reprint has been decided and is now on sale at bookstores nationwide and online.
Written by KARATZ, book “Jewelry Illustrated Book”
The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.
