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raw stone

This is a list of products that contain rough stones and gemstones.

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Sold out 1 Brazilian Euclase rough stone (discount available for multiple purchases)
Sold out アウイナイト原石・ルース2石セット - カラッツSTORE
Sold out 【8月誕生石】ペリドット原石・ルース2石セット - カラッツSTORE
Sold out 【4月新誕生石】モルガナイト原石・ルース2石セット - カラッツSTORE
Sold out アイオライト原石・ルース 2石セット - カラッツSTORE
Sold out Ametrine 1 stone (approximately 60~70ct)《Discount available for multiple purchases》
Sold out 【5月誕生石】コロンビア産エメラルド原石1石(平均1.1ct) - カラッツSTORE
Sold out サンストーン 原石・ルース2点セット - KARATZ STORE|カラッツSTORE
Sold out ミャンマー・モゴック産非加熱ピンクサファイア結晶1石(原石)
Sold out Ametrine 1 stone (approximately 40~50ct)
Sold out アキシナイト 原石・ルース2石セット - カラッツSTORE
Sold out Limited to 10 stones: Blue diamond rough and loose stone set of 2 (treated) Multiple purchase discount
Sold out [Limited to 7 sets] October birthstone tourmaline 3 stone set (1 rough stone from Afghanistan, 2 loose 2.5mm stones)
Sold out グランディディエライト原石・ルース(平均0.055ct)2石セット
Sold out Set of 2 stones: 1 YAG (yttrium aluminum garnet) stone (canary yellow, emerald cut) + 1 yellow sapphire rough stone (discount 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 Gem Gacha💎 Set of 2 Madagascar Petzotite rough stones and loose stones
Sold out コロンビア産エメラルド 1.400ct原石
Sold out 《Limited set of 2》German auinite rough stone/loose 2 stone set《Multiple purchase discount available》
Sold out Diamond 2.238ct rough stone
Sold out ブラジル産ユークレース 3.190ct原石
Sold out コロンビア産ユークレース 2.215ct原石
Sold out コバルトガーナイト 0.400ct原石 - KARATZ STORE|カラッツSTORE
Sold out [On sale at 10pm on November 9th] 152.261ct American pink chalcedony rough stone
Sold out アンゴラ産グリーンダイヤモンド原石(ソーヤブル) 0.491ct原石(トライゴン)
Sold out ロシア産イエローダイヤモンド原石(ソーヤブル) 0.244ct原石(トライゴン)
Sold out ブラジル産パライバトルマリン 1.852ct原石
Sold out ブラジル産パライバトルマリン 3.485ct原石
Sold out オーストラリア産シェルオパール(貝オパール) 102.923ct原石
Sold out タンザニア産タンザナイト 2.565ct原石・ルース2石セット

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.