Idocrase 1.473ct loose (vesuvianite)
Sale price¥19,800
Amethyst 4.961ct loose
Sale price¥3,980
Synthetic opal 3.620ct loose
Sale price¥9,800
K18 tanzanite 1ct ring
Sale price¥79,800
Diamond loose/certificate transfer fee
Sale price¥5,000
Demantoid garnet 200.00ct rough stone
Sale price¥298,000
Fire opal 5.827ct loose
Sale price¥22,800
Dumortierite in quartz 2.283ct loose
Sale price¥8,800
Tourmaline 0.672ct loose
Sale price¥3,980
Beryl 0.699ct loose (yellowish green)
Sale price¥3,980
[KEN] Fire opal from Mexico 3.782ct loose
Sale price¥9,800
{Yurakucho Marui 2024112 takeout} Bicolor tourmaline 0.401ct loose stone
Sale price¥12,800
Fluorite 17.87ct loose
Sale price¥7,980
Amethyst 34.015ct loose
Sale price¥14,800
Amethyst 27.666ct loose (horsehead cut)
Sale price¥14,800
Bicolor chrysoberyl 0.864ct loose
Sale price¥8,800
Amethyst 30.78ct loose
Sale price¥19,800
Color change garnet 0.733ct loose
Sale price¥19,800
《Yurakucho Marui 2024112 takeout》Color change garnet 0.611ct loose stone
Sale price¥15,800
Tourmaline 0.747ct loose
Sale price¥5,980
Paraiba tourmaline from Brazil 0.49ct loose
Sale price¥45,800
[Jeweler's Tools] Color change penlight loose set
Sale price¥4,980
Yellow diamond 0.190ct loose (FANCY DEEP ORANGY YELLOW, SI2)
Sale price¥39,800
Jeremejevite 0.26ct loose
Sale price¥22,800
Sapphire 2.273ct rough stone
Sale price¥2,980
Baroque Opal 2 stones《Discount available for multiple purchases》
Sale price¥3,980
[Jeweler's Tools] White penlight (for loose), loose 3-piece set
Sale price¥5,980
Yellow diamond 0.206ct loose (FANCY DEEP ORANGY YELLOW, SI2)
Sale price¥29,800
Yellow diamond 0.201ct loose (rose cut)
Sale price¥14,800
Additional fee: 7,500 yen
Sale price¥7,500
[Option] Paraiba Tourmaline component analysis sorting issuance fee
Sale price¥5,000
Patch《Cannot be purchased separately》
Sale price¥0
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.