Tanzanian red spinel 0.197ct loose stone
Sale price¥9,800
Burmese gray spinel 0.827ct loose stone
Sale price¥28,800
Tanzania gray spinel 0.844ct loose stone
Sale price¥18,800
Tanzanian grey spinel 5.1mm/0.605ct loose stone
Sale price¥12,800
Tanzania Mahenge Spinel (Hot Pink Spinel) 0.148ct Loose Stone
Sale price¥14,800
Burmese hot pink spinel 0.181ct loose stone
Sale price¥18,800
Cambodian bicolor zircon 1.668ct loose stone
Sale price¥25,800
Bicolor sapphire 0.143ct loose
Sale price¥8,800
Bicolor sapphire 0.481ct loose
Sale price¥25,800
Brazilian Santa Maria Aquamarine 0.206ct loose stone
Sale price¥12,800
Madagascar sphene 1.002ct loose stone
Sale price¥15,800
Madagascar sphene 0.991ct loose stone
Sale price¥12,800
Madagascar sphene 1.080ct loose stone
Sale price¥12,800
Sri Lankan Purple Sapphire 0.797ct Loose
Sale price¥18,800
Purple sapphire 0.419ct loose stone
Sale price¥15,800
Montana Sapphire 0.296ct loose
Sale price¥5,980
Montana Sapphire 0.241ct loose
Sale price¥5,980
Montana sapphire 0.382ct loose stone
Sale price¥6,980
Burmese Red Spinel 3.6mm/0.216ct Loose Stone
Sale price¥8,800
Pt900 Kashmir unheated sapphire 1.14ct / diamond 0.70ct ring GIA
Sale price¥1,580,000
Spanish Sphalerite 1.372ct loose stone
Sale price¥12,800
Sri Lankan Silky Sapphire 1.166ct Loose
Sale price¥12,800
Silky sapphire from Sri Lanka 0.975ct loose
Sale price¥8,800
Sri Lankan Silky Sapphire 0.586ct Loose
Sale price¥9,800
[E_25 Yurakucho Marui] Blue sapphire 4.1mm/0.323ct loose stone
Sale price¥9,800
Blue sapphire 3.9mm/0.279ct loose stone
Sale price¥9,800
Blue sapphire 3.9mm/0.260ct loose stone
Sale price¥8,800
Blue sapphire 4.0mm/0.269ct loose stone
Sale price¥8,800
Tanzanian Purple Sapphire 0.681ct Loose Stone (Color Shift)
Sale price¥19,800
Cambodian colorless zircon 0.676ct loose stone (orange fluorescence)
Sale price¥6,980
Cambodian colorless zircon 0.775ct loose stone (orange fluorescence)
Sale price¥8,800
Cambodian colorless zircon 1.149ct loose stone (orange fluorescence)
Sale price¥12,800
Cambodian colorless zircon 1.218ct loose stone (orange fluorescence)
Sale price¥12,800
Madagascar pink sapphire 0.527ct loose stone
Sale price¥18,800
Madagascar pink sapphire 0.335ct loose stone
Sale price¥14,800
Madagascar Purple Sapphire 0.440ct Loose
Sale price¥18,800
Madagascar Purple Sapphire 0.429ct Loose
Sale price¥12,800
Madagascar Purple Sapphire 0.523ct Loose
Sale price¥15,800
Spodumene 1.844ct loose stone
Sale price¥12,800
Sri Lankan Green Zircon 0.456ct Loose Stone
Sale price¥6,980
Sri Lankan Yellow Sapphire 0.221ct Loose
Sale price¥9,800
Madagascar Purple Sapphire 0.433ct Loose Stone
Sale price¥14,800
Spanish Sphalerite 6.494ct loose stone
Sale price¥69,800
Spanish bicolor sphalerite 5.289ct loose stone
Sale price¥59,800
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.
