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¥5,000 - ¥10,000

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タンザニア産バイカラーゾイサイト 0.357ctルース

Tanzania Bicolor Zoisite 0.357ct Loose Stone Sale price¥6,980
モザンビーク産アクアマリン 4.9mm/0.463ctルース

Mozambique Aquamarine 4.9mm/0.463ct Loose Stone Sale price¥8,800
【12547795掲載】チベット産バイカラーアンデシン 0.755ctルース

Tibetan bicolor andesine 0.755ct loose stone Sale price¥6,980
ジンバブエ産スフェーン 0.302ctルース

【8/30 22時販売】ジンバブエ産スフェーン 0.302ctルース Sale price¥8,800
メキシコ産ファイアオパール 0.352ctルース

【8/30 22時販売】メキシコ産ファイアオパール 0.352ctルース Sale price¥7,980
ジンバブエ産スフェーン 0.332ctルース

【8/30 22時販売】ジンバブエ産スフェーン 0.332ctルース Sale price¥9,800
マダガスカル産アンダリュサイト 0.454ctルース

【8/29 22時販売】マダガスカル産アンダリュサイト 0.454ctルース Sale price¥7,980
タンザニア産ミントガーネット 0.296ctルース

【8/29 22時販売】タンザニア産ミントガーネット 0.296ctルース Sale price¥8,800
ブラジル産ラベンダークォーツ（スコロライト） 0.475ctルース

【8/29 22時販売】ブラジル産ラベンダークォーツ（スコロライト） 0.475ctルース Sale price¥7,980
カンボジア産カラーレスジルコン 0.929ctルース

[#202607 Akihabara Pop-up Store - Currently Removed from Stock] [Listed as 12555668] Cambodian Colorless Zircon 0.929ct Loose Stone Sale price¥9,800
パキスタン産ペリドット 5.2mm/0.562ctルース

Pakistani Peridot 5.2mm/0.562ct Loose Stone Sale price¥9,800
ビルマ産ルビー 0.303ctルース

[#202607AkihabaraPop-upExhibition][12563418Posted] Burmese Ruby 0.303ct Loose Sale price¥9,800
ブラジル産コッパールチルクォーツ 1.262ctルース

Brazilian copper rutilated quartz 1.262ct loose stone Sale price¥6,980
ブラジル産コッパールチルクォーツ 1.647ctルース

Brazilian copper rutilated quartz 1.647ct loose stone Sale price¥6,980
コッパールチルクォーツ 1.352ctルース

Brazilian copper rutilated quartz 1.352ct loose stone Sale price¥6,980
Synthetic Alexandrite 0.578ct loose stone

Synthetic Alexandrite 0.578ct loose stone Sale price¥9,800
アメリカ産ペリドット 0.803ctルース

【9/1 22時販売】アメリカ産ペリドット 0.803ctルース Sale price¥9,800
合成ルチル 0.278ctルース

【9/3 22時販売】合成ルチル 3.8mm/0.278ctルース Sale price¥8,800
血赤珊瑚 1.336ctルース

【9/3 22時販売】高知県産血赤珊瑚 1.336ctルース Sale price¥9,800
血赤珊瑚 1.235ctルース

【9/3 22時販売】高知県産血赤珊瑚 1.235ctルース Sale price¥9,800
モンテブラサイト 0.251ctルース

【9/3 22時販売】ブラジル産モンテブラサイト 4.0mm/0.251ctルース Sale price¥8,800
トルコ産ダイアスポア 0.410ctルース

【9/3 22時販売】トルコ産ダイアスポア 0.410ctルース Sale price¥9,800
ブラジル産ロードナイトインクォーツ 0.438ctルース

【9/3 22時販売】ブラジル産ロードナイトインクォーツ 0.438ctルース Sale price¥8,800
ブラジル産ロードナイトインクォーツ 0.562ctルース

【9/3 22時販売】ブラジル産ロードナイトインクォーツ 5.5mm/0.562ctルース Sale price¥8,800
ブラジル産ロードナイトインクォーツ 0.600ctルース

【9/3 22時販売】ブラジル産ロードナイトインクォーツ 6.2mm/0.600ctルース Sale price¥9,800
[Jeweler's tools] 4-piece set including loupe (10x magnification), tweezers, and 2 loose stones

[Jeweler's tools] 4-piece set including loupe (10x magnification), tweezers, and 2 loose stones Sale price¥6,980
Ice blue diamond 1.2mm or 2.0mm 1 stone (VS class equivalent, round cut) {Multiple purchase discount available}

Ice blue diamond 1.2mm or 2.0mm 1 stone (VS class equivalent, round cut) {Multiple purchase discount available} Sale priceFrom ¥4,980
H&C (Heart & Cupid) Diamond 2.0mm Loose (VS Class, DG Class, 2mm Melee Diamonds) {Multiple Purchase Discounts Available}

H&C (Heart & Cupid) Diamond 2.0mm Loose (VS Class, DG Class, 2mm Melee Diamonds) {Multiple Purchase Discounts Available} Sale price¥7,980
[Jeweler's Tools] White penlight (for loose), loose 3-piece set

[Jeweler's Tools] White penlight (for loose), loose 3-piece set Sale price¥5,980
1 stone of Brazilian blue tourmaline (3 x 4 mm pear shape/oval cut/3 x 5 mm pear shape/4 x 5 mm oval cut)《Discount available for multiple purchases》

1 stone of Brazilian blue tourmaline (3 x 4 mm pear shape/oval cut/3 x 5 mm pear shape/4 x 5 mm oval cut)《Discount available for multiple purchases》 Sale priceFrom ¥2,980
Limited to 7 sets: Gemstone Encyclopedia Playing Cards + Gemstone Lucky Bag (worth 10,000 yen) with 4 Stones

Limited to 7 sets: Gemstone Encyclopedia Playing Cards + Gemstone Lucky Bag (worth 10,000 yen) with 4 Stones Sale price¥6,000
1 Dragon Garnet (4.0mm, round cut)

1 Dragon Garnet (4.0mm, round cut) Sale price¥5,980
クッションカットのブラジル産インペリアルトパーズ1石ルース（3mm）《複数購入割引有》

Cushion cut Brazilian imperial topaz 1 stone loose (3mm)《Multiple purchase discount available》 Sale price¥5,980
1 blue fluorescent diamond (H&C, 3EX, VS-SI class equivalent, 2.0mm) {Multiple purchase discount available}

1 blue fluorescent diamond (H&C, 3EX, VS-SI class equivalent, 2.0mm) {Multiple purchase discount available} Sale price¥8,980
スリランカ産サファイア《ラトゥナプラ》1石ルース(平均0.75ct)

Gem Gacha💎 Sri Lankan Sapphire《Ratnapura》1 loose stone (average 0.75ct)《Multiple purchase discount available》 Sale price¥5,980
Limited Quantity: 2mm Benitoite (Top Quality Ice Blue) (Multiple Purchase Discounts Available)

Limited Quantity: 2mm Benitoite (Top Quality Ice Blue) (Multiple Purchase Discounts Available) Sale price¥8,800
《Limited to 18 Stones》Brazilian Paraiba Tourmaline Gacha with Sorting (CuO: 2.1%, MnO: 2.2%) Normally 45,800 JPY《Multiple Purchase Discount Available》

《Limited to 18 Stones》Brazilian Paraiba Tourmaline Gacha with Sorting (CuO: 2.1%, MnO: 2.2%) Normally 45,800 JPY《Multiple Purchase Discount Available》 Sale price¥9,800
コロンビア産エメラルド ルース・原石2石セット（ラウンドカット3mm）

Colombian emerald loose rough stone set of 2 stones (round cut 3mm)《Multiple purchase discount available》 Sale price¥6,980
Limited to 20 stones: Brazilian Paraiba tourmaline (cabochon cut, approximately 2.2 mm) [Multiple purchase discounts available]

Limited to 20 stones: Brazilian Paraiba tourmaline (cabochon cut, approximately 2.2 mm) [Multiple purchase discounts available] Sale price¥9,800
Limited quantity: Sri Lankan 2mm sapphire (sapphire) 1 loose stone (with identification certificate for all stones) Discounts for multiple purchases

Limited quantity: Sri Lankan 2mm sapphire (sapphire) 1 loose stone (with identification certificate for all stones) Discounts for multiple purchases Sale price¥5,980
Limited to 25 stones: 1 Brazilian Santa Maria aquamarine (round cut, approx. 3.0 mm) Multiple purchase discounts available

Limited to 25 stones: 1 Brazilian Santa Maria aquamarine (round cut, approx. 3.0 mm) Multiple purchase discounts available Sale price¥5,980
《Hong Kong Sourcing – Limited 24 Stones》Vivid Pakistan Lazulite Loose Stone 《Multiple Purchase Discount Available》

《Hong Kong Sourcing – Limited 24 Stones》Vivid Pakistan Lazulite Loose Stone 《Multiple Purchase Discount Available》 Sale price¥5,980
[On sale 8/15 at 10 PM JST] Colombian Emerald Gacha featuring Shimizu Kisaki's 8mm Clover In-cut (regularly 79,800 JPY) - only 15 stones available! (Bonus green beryl included) [Multiple purchase discount available]

[On sale 8/15 at 10 PM JST] Colombian Emerald Gacha featuring Shimizu Kisaki's 8mm Clover In-cut (regularly 79,800 JPY) - only 15 stones available! (Bonus green beryl included) [Multiple purchase discount available] Sale price¥6,980
《Limited to 13 stones, Tucson Arrivals》Kenya Bi-Color Grossular Garnet, usually ¥29,800, average 0.63ct. Tucson Arrivals 《Multiple Purchase Discount Available》

《Limited to 13 stones, Tucson Arrivals》Kenya Bi-Color Grossular Garnet, usually ¥29,800, average 0.63ct. Tucson Arrivals 《Multiple Purchase Discount Available》 Sale price¥9,800
Limited to 32 stones: Namibian Mandarin Garnet, 1 loose stone (round cut, 2.5mm) [Multiple purchase discounts available]

Limited to 32 stones: Namibian Mandarin Garnet, 1 loose stone (round cut, 2.5mm) [Multiple purchase discounts available] Sale price¥5,980
《Limited to 15 stones》Lab Grown Diamond Gacha💎Includes a 1.02ct/D/VS1/3EX certified lab grown diamond, usually priced at ¥50,000 (with 1 synthetic cobalt spinel as a bonus) 《Bulk Purchase Discount Available》

《Limited to 15 stones》Lab Grown Diamond Gacha💎Includes a 1.02ct/D/VS1/3EX certified lab grown diamond, usually priced at ¥50,000 (with 1 synthetic cobalt spinel as a bonus) 《Bulk Purchase Discount Available》 Sale price¥5,980
Diamond loose/certificate transfer fee

Diamond loose/certificate transfer fee Sale price¥6,600
[On Sale August 2nd at 10 PM JST] Limited to 12 Stones: Blue Gemstone Gacha (Paraiba Tourmaline, Euclase, Tanzanite, etc.) + 1 Aquamarine Stone Included (Bulk Purchase Discount Available)

[On Sale August 2nd at 10 PM JST] Limited to 12 Stones: Blue Gemstone Gacha (Paraiba Tourmaline, Euclase, Tanzanite, etc.) + 1 Aquamarine Stone Included (Bulk Purchase Discount Available) Sale price¥7,980

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.