Spanish Sphalerite 7mm/1.676ct loose stone
Sale price¥35,800
Montana Sapphire 3.0mm/0.119ct Loose (Blue Sapphire)
Sale price¥6,980
Montana Sapphire 3.7mm/0.272ct Loose Stone (Blue Sapphire)
Sale price¥9,800
American Neptunite 2.9mm/0.109ct loose stone
Sale price¥12,800
Celestite from Madagascar 11.5mm/7.246ct loose stone
Sale price¥18,800
Celestite from Madagascar 11.0mm/7.556ct loose stone
Sale price¥18,800
Celestite from Madagascar 8.7mm/4.425ct loose stone
Sale price¥12,800
[E_27 Yurakucho Marui] Silky Diamond 3.5mm/0.178ct Loose
Sale price¥19,800
Indian Alexandrite Cat's Eye 0.787ct Loose Stone
Sale price¥25,800
Myanmar Purple Spinel 0.434ct Loose Stone
Sale price¥12,800
Brazilian Paraiba Tourmaline 0.167ct loose stone (CuO: 1.1%, MnO: 3.6%)
Sale price¥69,800
American Peridot 7.2mm/1.530ct Loose Stone
Sale price¥14,800
Russian Demantoid Garnet (Horsetail Recognized) 3mm/0.165ct Loose Stone
Sale price¥45,800
Colombian emerald 3.1mm/0.097ct loose
Sale price¥22,800
Madagascar White Topaz (Needle-in Topaz) 7.8mm/2.336ct Loose Stone
Sale price¥5,980
Sri Lankan Blue Sapphire 3.8mm/0.279ct Loose
Sale price¥8,800
Sri Lankan Blue Sapphire 4.5mm/0.401ct Loose
Sale price¥12,800
Madagascar Oregon Sunstone 4mm/0.239ct Loose Stone
Sale price¥7,980
Oregon Sunstone from the United States 4.0mm/0.206ct loose stone
Sale price¥8,800
Oregon Sunstone from the United States 4.0mm/0.204ct loose stone
Sale price¥6,980
Oregon Sunstone from the United States 5.0mm/0.460ct loose stone
Sale price¥19,800
Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.284ct Loose Stone
Sale price¥22,800
YAG (Yttrium Aluminum Garnet) 7.1mm/1.709ct loose stone
Sale price¥12,800
American Benitoite 1.8mm/0.159ct loose stone (gradation)
Sale price¥39,800
Brazilian Lazurite (Azurite) 0.061ct loose stone
Sale price¥18,800
Brazilian Lazurite (Azurite) 0.052ct loose stone
Sale price¥16,800
Mexican Fire Opal 6.7mm/0.953ct Loose
Sale price¥25,800
Mexican Fire Opal 7.1mm/0.911ct Loose
Sale price¥25,800
Mexican Fire Opal 4.9mm/0.333ct Loose
Sale price¥8,800
Unheated Silky Pink Sapphire from Vietnam 2.4mm/0.073ct Loose Stone
Sale price¥8,980
[Koshu Precious Stone Cutting Pluethree] Yellow Beryl 0.880ct Loose
Sale price¥29,800
Oregon Sunstone from the United States 6.0mm/0.844ct loose stone
Sale price¥25,800
Oregon Sunstone from the United States 8mm/1.966ct Loose Stone
Sale price¥49,800
Tanzanite from Tanzania 6.5mm/0.945ct loose stone
Sale price¥28,800
Pink spinel 3.8mm/0.276ct loose stone
Sale price¥6,980
Czech Aragonite 8.0mm/2.082ct Loose Stone
Sale price¥69,800
Spanish Sphalerite 8mm/2.796ct loose stone
Sale price¥69,800

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.