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Sold out 【5/24 22時販売】リボンの騎士×KARATZコラボ◆連載開始70周年記念ジュエリー◆ネックレス - カラッツSTORE

[Limited to 70 items] Ribbon Knight x KARATZ collaboration ◆ 70th anniversary commemorative jewelry ◆ Necklace

Sold out オーストラリア産ボルダーオパール 52.582ctルース

Australian boulder opal 52.582ct loose

Sold out ブラジル産パライバトルマリン 0.240ctルース

Paraiba tourmaline from Brazil 4.1mm/0.240ct loose

Sold out Limited to 6 stones: 1 topaz rough stone (November birthstone) Multiple purchase discounts available

Limited to 6 stones: 1 topaz rough stone (November birthstone) Multiple purchase discounts available
Sold out マダガスカル産ベキリーブルーガーネット（カラーチェンジガーネット） 0.352ctルース

Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.352ct Loose Stone
Sold out Limited to 9 stones: 1 Brazilian Alexandrite loose stone (rose cut, 3mm/average 0.105ct) Multiple purchase discounts available

Limited to 9 stones: 1 Brazilian Alexandrite loose stone (rose cut, 3mm/average 0.105ct) Multiple purchase discounts available

Sold out [3/31 Reception ends] "Given the Movie Hiiragimix" x KARATZ Collaboration Jewelry Uenoyama Ritsuka Model Ring

[3/31 Reception ends] "Given the Movie Hiiragimix" x KARATZ Collaboration Jewelry Uenoyama Ritsuka Model Ring

Sold out [3/31 Reception ends] "Given the Movie: Hiiragi Mix" x KARATZ Collaboration Jewelry Haruki Nakayama Model Ring

[3/31 Reception ends] "Given the Movie: Hiiragi Mix" x KARATZ Collaboration Jewelry Haruki Nakayama Model Ring

Sold out [3/31 Reception ends] "Given the Movie Hiiragimix" x KARATZ Collaboration Jewelry Akihiko Kaji Model Ring

[3/31 Reception ends] "Given the Movie Hiiragimix" x KARATZ Collaboration Jewelry Akihiko Kaji Model Ring

Sold out Tanzanite rough and loose stone set of 2 (average 3.3ct, special cut) from Tanzania {Multiple purchase discounts available}

Tanzanite rough and loose stone set of 2 (average 3.3ct, special cut) from Tanzania {Multiple purchase discounts available}

Sold out 南アフリカ産ダイヤモンド原石（ソーヤブル） 0.083ct原石

South African diamond rough (sawable) 0.083ct rough

Sold out Limited to 15 stones: 1 loose Smithsonite stone (average 2 carats) Multiple purchase discounts available

Limited to 15 stones: 1 loose Smithsonite stone (average 2 carats) Multiple purchase discounts available
Sold out Limited to 3 stones: Brazilian Trapiche Amethyst (with mother rock) 1 loose stone (average 33ct, February birthstone) Multiple purchase discounts available

Limited to 3 stones: Brazilian Trapiche Amethyst (with mother rock) 1 loose stone (average 33ct, February birthstone) Multiple purchase discounts available
Sold out Limited to 2 stones: 1 Australian opal loose stone (pear cut) Multiple purchase discounts available

Limited to 2 stones: 1 Australian opal loose stone (pear cut) Multiple purchase discounts available
Sold out Limited to 6 stones: 1 loose sphene stone from Madagascar (round cut, 4mm) Multiple purchase discounts available

Limited to 6 stones: 1 loose sphene stone from Madagascar (round cut, 4mm) Multiple purchase discounts available
Sold out サファリン 0.320ctルース

Sri Lankan saffron 0.320ct loose stone with certificate of authenticity
Sold out Limited to 2 stones: 1 Nigerian Cobalt Garnite stone (Multiple purchase discounts available)

Limited to 2 stones: 1 Nigerian Cobalt Garnite stone (Multiple purchase discounts available)
Sold out Limited to 9 stones: 1 Spinel Gacha (August birthstone) including 1 bicolor spinel (0.93 ct) (Multiple purchase discounts available)

Limited to 9 stones: 1 Spinel Gacha (August birthstone) including 1 bicolor spinel (0.93 ct) (Multiple purchase discounts available)

Sold out [Sales end on Sunday, May 10] Anime "Assassination Classroom" x KARATZ Collaboration Koro Sensei Model Bracelet

[Sales end on Sunday, May 10] Anime "Assassination Classroom" x KARATZ Collaboration Koro Sensei Model Bracelet

Sold out 【猫カット】ブラジル産ゲーサイトインアメジスト 0.561ctルース

[Cat Cut] Brazilian Goethite Amethyst 0.561ct Loose Stone
Sold out ラベンダー翡翠（ヒスイ） 78.496ctルース 中宝

Lavender Jade (Jade) 78.496ct Loose Medium Treasure
Sold out Limited to 3 stones: Synthetic Black Moissanite Loose Stone (2.5mm, Round Cut) - Multiple Purchase Discounts Available

Limited to 3 stones: Synthetic Black Moissanite Loose Stone (2.5mm, Round Cut) - Multiple Purchase Discounts Available
Sold out Limited to 3 stones: Myanmar gray spinel and platinum spinel (4.0mm, round cut) loose stone (multiple purchase discounts available)

Limited to 3 stones: Myanmar gray spinel and platinum spinel (4.0mm, round cut) loose stone (multiple purchase discounts available)

Sold out Limited to 3 stones: Indian Andesine and Labradorite (Rainbow Moonstone) Flower Carving, 6mm, 1 stone. Discounts available for multiple purchases.

Limited to 3 stones: Indian Andesine and Labradorite (Rainbow Moonstone) Flower Carving, 6mm, 1 stone. Discounts available for multiple purchases.
Sold out Limited to 12 stones! Gemstone Gacha including Brazilian Paraiba Tourmaline rough stone 💎 1 rough stone (Multiple purchase discounts available)

Limited to 12 stones! Gemstone Gacha including Brazilian Paraiba Tourmaline rough stone 💎 1 rough stone (Multiple purchase discounts available)
Sold out Limited Edition of 7 Montana Sapphires (Rock Creek Mine) Gacha (Pear Shape, Approx. 5 x 3mm) [Multiple Purchase Discounts Available]

Limited Edition of 7 Montana Sapphires (Rock Creek Mine) Gacha (Pear Shape, Approx. 5 x 3mm) [Multiple Purchase Discounts Available]
Sold out Diamond rough (makeable) 0.279ct rough

Diamond rough (makeable) 0.279ct rough
Sold out Diamond rough (makeable) 0.353ct rough

Diamond rough (makeable) 0.353ct rough
Sold out 《Limited to 5 stones》Carving Gacha 💎 Green Quartz, Lemon Quartz, Blue Topaz 《Multiple Purchase Discount Available》

《Limited to 5 stones》Carving Gacha 💎 Green Quartz, Lemon Quartz, Blue Topaz 《Multiple Purchase Discount Available》
Sold out [Sales start at 11:00 AM on Friday, March 13th] Anime "Hell Teacher Nube" x Jewelry Specialty Store KARATZ Collaboration "Demon Hand Figure" Silver Model (Limited to 24 pieces)

[Sales start at 11:00 AM on Friday, March 13th] Anime "Hell Teacher Nube" x Jewelry Specialty Store KARATZ Collaboration "Demon Hand Figure" Silver Model (Limited to 24 pieces)

Sold out 《Limited to 2 Stones》Greenland Pink Sapphire Loose Stone (5.0mm, Heart-shaped, with Certificate) 《Multiple Purchase Discount Available》

《Limited to 2 Stones》Greenland Pink Sapphire Loose Stone (5.0mm, Heart-shaped, with Certificate) 《Multiple Purchase Discount Available》

Sold out Benitoite Gradation 6 Stone Set (2.0mm, Round Cut, Including Top Quality) 《Multiple Purchase Discount Available》

Benitoite Gradation 6 Stone Set (2.0mm, Round Cut, Including Top Quality) 《Multiple Purchase Discount Available》
Sold out Brazilian Paraiba Tourmaline (cabochon cut, approximately 2.2mm) 1 loose stone (multiple purchase discounts available)

Brazilian Paraiba Tourmaline (cabochon cut, approximately 2.2mm) 1 loose stone (multiple purchase discounts available)

Sold out Brazilian Paraiba Tourmaline (cabochon cut, approximately 2.2mm) 1 loose stone (multiple purchase discounts available)

Brazilian Paraiba Tourmaline (cabochon cut, approximately 2.2mm) 1 loose stone (multiple purchase discounts available)
Sold out ブラジル産インディゴライトトルマリン 0.105ctルース

[On sale May 5th at 10 PM JST] Brazilian Indicolite Tourmaline 0.105ct Loose Stone with Appraisal Report
Sold out "Limited to 9" Deep sea coral loose stone (March birthstone, coral, 7mm) "Multiple purchase discount available"

"Limited to 9" Deep sea coral loose stone (March birthstone, coral, 7mm) "Multiple purchase discount available"
Sold out パパラチアサファイア 0.282ctルース 中宝鑑付 - KARATZ STORE｜カラッツSTORE

Padparadscha sapphire 0.282ct loose medium treasure appraisal

Sold out K18ホワイトオパール0.10 ct ペンダント（ネックレス） - KARATZ STORE｜カラッツSTORE

K18 white opal 0.10 ct pendant (necklace)

Sold out Pt950バイカラーサファイア0.255ct リング - KARATZ STORE｜カラッツSTORE

Pt950 bicolor sapphire 0.255ct ring

Sold out ロードクロサイト 0.47ctルース - KARATZ STORE｜カラッツSTORE

Rhodochrosite 0.47ct loose

Sold out Pt900/K18PGピンクダイヤモンド0.048ct リング - KARATZ STORE｜カラッツSTORE

Pt900/K18PG pink diamond 0.048ct ring

Sold out イエローダイヤモンド 0.055ctルース(FANCY DEEP ORANGY YELLOW, I1) - KARATZ STORE｜カラッツSTORE

Yellow diamond 0.055ct loose (FANCY DEEP ORANGY YELLOW, I1)

Sold out エメラルド 0.193ctルース - KARATZ STORE｜カラッツSTORE

Emerald 3.5mm/0.193ct loose

Sold out イエローダイヤモンド 0.201ctルース（ローズカット） - KARATZ STORE｜カラッツSTORE

Yellow diamond 0.201ct loose (rose cut)

Sold out ダイヤモンド 0.082ctルース（トリリアントカット） - KARATZ STORE｜カラッツSTORE

Diamond 0.082ct loose (trilliant cut)

Sold out イエローダイヤモンド 0.206ctルース(FANCY DEEP ORANGY YELLOW, SI2) - KARATZ STORE｜カラッツSTORE

Yellow diamond 0.206ct loose (FANCY DEEP ORANGY YELLOW, SI2)

Sold out アイスブルーダイヤモンド 1.021ctルース(FANCY INTENSE BLUE GREEN, I1) - KARATZ STORE｜カラッツSTORE

Ice blue diamond 1.021ct loose (FANCY INTENSE BLUE GREEN, I1, radiant cut)

Sold out スイスブルートパーズ 81.900ctルース - KARATZ STORE｜カラッツSTORE

Swiss blue topaz 81.900ct loose

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.

KARATZ・Five Commitments

So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.

KARATZ's Initiatives and Social Contributions

We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.

KARATZ Books

These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.

jeweler's tools

For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.