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Sold out Limited to 2 stones: 1 Indian Bloodshot Iolite Sunstone Loose Stone (Multiple purchase discount available)
Sold out Limited to 2 stones Orange diamond (treated, 2mm) Multiple purchase discount available
Sold out Limited to 2 stones: 1 loose Brazilian Tinkerbell Quartz (average 2.1ct) Multiple purchase discounts available
Sold out [Limited to 2 stones] Brazilian Paraiba Quartz (Medusa Quartz, Giralite in Quartz) 1 loose stone [Multiple purchase discount available]
Sold out [Limited to 2 stones] 1 Brazilian rhodolite garnet loose stone (trillion cut, 6mm) [Multiple purchase discount available]
Sold out Limited to 2 stones: 1 loose petzotite stone from Madagascar. Discounts available for multiple purchases.
Sold out Limited to 2 stones Synthetic Moissanite 1 loose stone (pink moissanite, heart shape, 6mm) Multiple purchase discount available
Sold out インド産アンデシン・ラブラドライト(通称名 レインボームーンストーン) 0.865ctルース
Sold out [Limited 2 stones/Resale] Sea green diamond (treatment) (2mm, round cut, SI class equivalent) 1 stone loose
Sold out スリランカ産カラーレスジルコン1石ルース(約5.5-6.0×8mm,平均1.9ct)《複数購入割引有》
Sold out Limited to 3 stones [Mr. Sanje] Dominican Republic Larimar 1 stone loose [Multiple purchase discount available]
Sold out 《Limited to 3 stones》1 American blue opal 《Discount available for multiple purchases》
Sold out [Limited 3 stones] 1 blue sapphire from Sri Lanka [Discount available for multiple purchases] (Rose cut, 2mm, Mr. NOBU cut)
Sold out [Limited to 3 stones] 1 Illusion sunstone from Tanzania [Discount available for multiple purchases] (Rose cut, 2mm, Mr. NOBU cut)
Sold out Limited to 3 stones: 1 Tanzanian pyrope almandine garnet (princess cut) loose stone (multiple purchase discounts available)
Sold out Limited to 3 stones: Pakistani lazurite (average 0.017ct) 1 loose stone (multiple purchase discounts available)
Sold out Limited to 3 stones: 1 peridot green diamond loose stone (treated, 3mm, VS class, Chuho sorting) Multiple purchase discounts available
Sold out Limited to 3 stones: 1 synthetic moissanite loose stone (star cut, 5mm) Multiple purchase discounts available
Sold out Limited to 3 stones: Rare twin-type Akoya pearl, 1 loose stone, 3.7-5.0mm. Discounts available for multiple purchases.
Sold out 《Limited 4 stones》Oregon sunstone cut by KEN & 2 rough stones set by KEN for polishing💎 (4.3-5.0mm, average 2.5ct)《Multiple purchase discount available》
Sold out Limited to 4 stones, Defective, Brazilian Euclase 1 stone loose, Multiple purchase discount available
Sold out Limited to 4 stones: 1 aventurine aquamarine loose stone (March birthstone, for beginners) Multiple purchase discounts available
Sold out Limited to 4 stones: Ethiopian black opal (heat-treated, identification instructions included) 1 loose stone (multiple purchase discounts available)
Sold out Limited to 4 stones: 1 loose Australian rainbow lattice sunstone stone. Discounts available for multiple purchases.
Sold out Limited to 4 stones Gem gacha💎 Tourmaline cut by American polisher KEN (for beginners) Multiple purchase discounts available
Sold out 《Limited to 4 stones》1 Czech aragonite stone loose《Multiple purchase discount available》
Sold out Limited to 4 stones: 1 loose Brazilian blue tourmaline stone. Discounts available for multiple purchases.
Sold out Limited to 5 sets: German aventurine and Afghan aventurine, loose stone set (multiple purchase discounts available)
Sold out 《限定5石》《訳あり》サファイア1石ルース(ロゼンジカット)《複数購入割引有》
Sold out Limited to 5 stones: 1 loose aventurine from Afghanistan (green-blue) Discounts available for multiple purchases
Sold out Limited to 5 stones: 1 loose lapis lazuli stone from Afghanistan (December birthstone) Discounts available for multiple purchases

KARATZ Custom Made

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.