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About KARATZ
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Jewelry buying trips around the world
The never-ending quest for jewellery brilliance
The journey from purchase to listing
Our passion for original jewelry
[Choose from stones] Made to order (all products)
About KARATZ's custom-made products
Simple Order
Semi-custom
half eternity ring set
Great value set of loose stones and setting
Custom-made examples
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Color change Andesine 2.0ct loose
Sold out
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Color change Andesine 2.0ct loose
Color change Andesine 2.0ct loose
Sold out
チャットで質問する
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Today's new arrivals
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[Until 2024/12/5] Gemstone Identification Guidebook (Not available for purchase separately; gift for purchases of 3,000 yen or more)
Sale price
¥0
[Sakura Shape Jewelry] Hanakoromo (Ring/Silver)
Sale price
¥25,800
[Sakura Shape Jewelry] Hanakoromo (Ring/Pt950, K18)
Sale price
From ¥79,800
[Sakura Shape Jewelry] Hanayurara (Vatican Necklace)
Sale price
From ¥22,800
[Sakura Shape Jewelry] Hanaboshi (double hanging necklace)
Sale price
From ¥24,800
coming soon
【12/28 22時販売】スリランカ産スピネル・マダガスカル産グランディディエライト7石セット・リング(アルテルノ枠)
Sale price
¥79,800
coming soon
【12/28 22時販売】タンザニア産コーネルピン・オーストラリア産クリソプレーズ7石セット・リング(アルテルノ枠)
Sale price
¥79,800
coming soon
【12/28 22時販売】ミャンマー産スピネル・ブラジル産アメジスト7石セット・リング(アルテルノ枠)
Sale price
¥79,800
coming soon
【12/28 22時販売】ミャンマー産スピネル・タンザニア産タンザナイト7石セット・リング(アルテルノ枠)
Sale price
¥79,800
coming soon
【12/29 22時販売】スリランカ産ブルーサファイア・ベトナム産シルキーピンクサファイア10石・ハーフエタニティリングセット(約2.6mm)
Sale price
¥98,000
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List of new arrivals
Popularity ranking with many favorites
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【12/25 22時販売】【金平糖カット】ブラジル産ラベンダークォーツ(スコロライト) 3.009ctルース
Sale price
¥22,800
【12/25 22時販売】スリランカ産イエローサファイア 0.526ctルース (バイカラーサファイア)
Sale price
¥18,800
【12/25 22時販売】ブラジル産デュモルチェライトインクォーツ 1.320ctルース
Sale price
¥14,800
【12/25 22時販売】ブラジル産ピンクトルマリン 0.331ctルース
Sale price
¥8,800
【12/25 22時販売】コロンビア産トラピッチェエメラルド 0.338ctルース
Sale price
¥18,800
【12/25 22時販売】非加熱ブラジル産パライバトルマリン 0.045ctルース
Sale price
¥59,800
【12/25 22時販売】非加熱ブラジル産パライバトルマリン 0.031ctルース(CuO:2.0%、MnO:2.1%)
Sale price
¥39,800
【12/24 22時販売】コロンビア産トラピッチェエメラルド 0.923ct原石
Sale price
¥45,800
【12/24 22時販売】タンザニア産バイカラータンザナイト 4.804ct原石
Sale price
¥18,800
【12/25 22時販売】非加熱ブラジル産パライバトルマリン 0.036ctルース(CuO:1.6%、MnO:2.4%)
Sale price
¥45,800
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List of new arrivals
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Benitoite 0.286ct loose
Sale price
¥178,000
Pt950 Benitoite 0.10ct Aquamarine Blue Diamond Ring
Sale price
¥98,000
[On sale at 10pm on 10/23] Brazilian Lazurite (Azurite) 0.200ct Loose Stone, Nikko Kan
Sale price
¥88,800
Paraiba tourmaline from Brazil 0.219ct loose (CuO:0.9%,MnO:0.2%)
Sale price
¥88,800
Spanish bicolor sphalerite 6.230ct loose
Sale price
¥79,800
Cambodian blue zircon (Ratanakiri blue) 3.449ct loose
Sale price
¥69,800
Particolor Paraiba tourmaline from Brazil 0.156ct loose (CuO:2.3%, MnO:2.6%)
Sale price
¥69,800
FANCY VIVID ORANGY YELLOW, SI-2
Sale price
¥59,800
Russian demantoid garnet (horsetail recognized) 0.310ct loose
Sale price
¥59,800
Wurzite 0.224ct loose Japanese-German book
Sale price
¥55,800
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