【3/20 22時販売】《限定10石》ロンドンブルーダイヤモンド1石ルース(VS-SIクラス相当,1.8mm)《複数購入割引有》
Sale price¥1,980
【3/16 22時販売】《限定9石》ロンドンブルーダイヤモンド1石ルース(VS-SIクラス相当,2.0mm)《複数購入割引有》
Sale price¥2,980
【3/8 22時販売】Pt950スリランカ産パープルスピネル 0.29ct・ダイヤモンドリング
Sale price¥69,800
【3/3 22時販売】シルキーダイヤモンド 2.7mm/0.086ctルース
Sale price¥14,800
【3/7 22時販売】ダイヤモンド 2.5mm/0.057ctルース(VSクラス相当,ハートシェイプ)
Sale price¥12,800
【2/28 22時販売】ブラウンダイヤモンド 0.554ctルース (カボションカット,SIクラス相当)
Sale price¥69,800
【2/27 22時販売】南アフリカ産ダイヤモンド原石(ソーヤブル) 0.083ct原石
Sale price¥32,800
【2/24 22時販売】南アフリカ産ダイヤモンド原石(ソーヤブル) 0.102ct原石 (トライゴン有り)
Sale price¥45,800
【2/24 22時販売】南アフリカ産ダイヤモンド原石(ソーヤブル) 0.087ct原石
Sale price¥34,800
【3/9 22時販売】ピンクダイヤモンド 0.075ctルース(Fancy Purplish PINK, SI2)
Sale price¥98,000
【3/9 22時販売】ダイヤモンド 0.332ctルース(F, VS2,フランダースカット)
Sale price¥55,800
[Resale] [Jeweler's Tools] H&C (Heart & Cupid) Scope (Diamond Scope)
Sale price¥1,580
Diamond loose sorting transition fee
Sale price¥3,000
[On sale at 10pm on 2/23] Yellow Diamond 0.551ct Loose (Cabochon Cut)
Sale price¥49,800
[On sale from 22:00 on 2/8] [Colorful] K18WG Brown Diamond Ring
Sale price¥69,800
South African diamond rough (sawable) 0.112ct rough
Sale price¥44,800
South African diamond rough (sawable) 0.091ct rough (trigon)
Sale price¥35,800
Yellow Diamond (Cabochon Cut) 0.185ct Loose
Sale price¥25,800
13-stone diamond half eternity ring set (VS class, D-G color, H&C, 2.0mm)
Sale price¥158,000
Diamond 4.1mm/0.263 Loose (I, VVS2, 3Excellent H&C)
Sale price¥55,800

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.