Bicolor tourmaline 1.497ct loose
Sale price¥19,800
Pink tourmaline 1.567ct loose
Sale price¥22,800
[Dandelion cut] Pink tourmaline 6mm/0.674ct loose with patch
Sale price¥35,800
Ice ruby from Greenland 3.4mm/ 0.217ct loose with certificate
Sale price¥15,800
[Koshu precious stone cut plusthree] Citrine 0.912ct loose with patch
Sale price¥29,800
[Koshu precious stone Kiriko plusthree] Citrine 1.121ct loose with patch
Sale price¥29,800
[Koshu Precious Stone Kiriko] Mexican Fire Opal 1.571ct Loose with Patch
Sale price¥79,800
[Sakura Incut] Mexican water opal 6mm loose with patch
Sale price¥29,800
[Dandelion cut] Fire opal 7mm loose
Sale price¥69,800
[Sakura Incut] Opal from Mexico 6mm/0.481ct loose
Sale price¥35,800
[Camellia cut] Mexican fire opal 1.270ct loose with patch
Sale price¥98,000
Opal from Mexico 1.139ct loose
Sale price¥69,800
Brazilian particolor Paraiba tourmaline 0.26ct loose GIA
Sale price¥598,000
Diaspore 0.660ct loose
Sale price¥5,980
Diaspore 0.875ct loose
Sale price¥7,980
Diaspore 0.657ct loose
Sale price¥5,980
Diaspore 0.672ct loose
Sale price¥5,980
Color change diamond spore 0.729ct loose
Sale price¥8,800
[Dandelion cut] Synthetic rutile 7mm/1.905ct loose
Sale price¥49,800
Montebrasite from Madagascar 0.366ct loose
Sale price¥5,980
Montebrasite from Madagascar 0.328ct loose
Sale price¥4,980
Russian demantoid garnet (horsetail recognized) 0.457ct rough stone
Sale price¥12,800
[KEN] Purple spinel from Myanmar 0.872ct loose
Sale price¥8,800
[KEN] Spinel from Myanmar 0.466ct loose
Sale price¥6,980
[KEN] Spinel from Myanmar 0.631ct loose
Sale price¥6,980
YAG (yttrium aluminum garnet) 1.792ct loose
Sale price¥12,800
[Mr. Sanjay] YAG (yttrium aluminum garnet) 6.5mm/1.774ct loose
Sale price¥12,800
[Mr. Sanjay] YAG (yttrium aluminum garnet) 6.5mm/1.548ct loose
Sale price¥12,800
Brazilian Paraiba tourmaline 0.226ct loose (CuO:0.7%, MnO:2.5%)
Sale price¥45,800
{Yurakucho Marui 2024112 takeout} Bicolor sapphire 0.292ct loose stone
Sale price¥25,800
Orange Celestite 0.848ct Loose Japanese-German Edition
Sale price¥69,800
Grandidierite 0.156ct loose
Sale price¥39,800
Bicolor pink star sapphire from Mogok 0.360ct loose
Sale price¥24,800
Bicolor star sapphire from Mogok 0.830ct loose
Sale price¥39,800
Bicolor tourmaline 0.591ct loose (rose cut)
Sale price¥9,800
Bicolor tourmaline 0.435ct loose (rose cut)
Sale price¥6,980
[Mr. Sanjay] Pink tourmaline 0.482ct loose
Sale price¥6,980
[Mr. Sanjay] Pink tourmaline 1.404ct loose
Sale price¥19,800
[Mr. Sanjay] Bicolor tourmaline 1.339ct loose
Sale price¥19,800
[Mr. Sanjay] Bicolor tourmaline 0.880ct loose
Sale price¥19,800
[Mr. Sanjay] Purple Spinel 0.740ct Loose
Sale price¥8,800
[Mr. Sanjay] Purple Spinel 0.542ct Loose
Sale price¥6,980
《Yurakucho Marui 2024112 takeout》Ruby 0.194ct loose stone
Sale price¥8,800
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.
