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Sold out Color Change Gacha💎 Burmese Color Change Zircon, Color Shift Sapphire, Color Shift Cobalt Spinel, and More (Multiple Purchase Discounts Available)

Color Change Gacha💎 Burmese Color Change Zircon, Color Shift Sapphire, Color Shift Cobalt Spinel, and More (Multiple Purchase Discounts Available)
Sold out Limited to 10 stones: Greenland Ruby (2mm, with certificate issued by the mine owner) - 1 loose stone - Multiple purchase discounts available

Limited to 10 stones: Greenland Ruby (2mm, with certificate issued by the mine owner) - 1 loose stone - Multiple purchase discounts available
Sold out Limited to 9 stones: Carving Gacha (Opal, Tourmaline, Tsavorite Garnet) 1 loose stone (Multiple purchase discounts available)

Limited to 9 stones: Carving Gacha (Opal, Tourmaline, Tsavorite Garnet) 1 loose stone (Multiple purchase discounts available)
Sold out Limited to 10 stones! Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More! Bicolor Loose Stones! 💎 Single Loose Stones Available. Discounts Available for Multiple Purchases.

Limited to 10 stones! Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More! Bicolor Loose Stones! 💎 Single Loose Stones Available. Discounts Available for Multiple Purchases.
Sold out [Limited to 6 Stones] Vietnamese Silky Pink Sapphire (Sanje Cut, Round, 3.0-3.3mm) Gacha [Bulk Purchase Discount Available]

[Limited to 6 Stones] Vietnamese Silky Pink Sapphire (Sanje Cut, Round, 3.0-3.3mm) Gacha [Bulk Purchase Discount Available]

Sold out [On sale June 7th at 10 PM] Limited to 10 stones: Flower-cut gem gacha 💎 Cherry blossom shape normally 39,800 yen, and a ruby with a new cut (plus an extra new cut) 《Multiple purchase discount available》

[On sale June 7th at 10 PM] Limited to 10 stones: Flower-cut gem gacha 💎 Cherry blossom shape normally 39,800 yen, and a ruby with a new cut (plus an extra new cut) 《Multiple purchase discount available》
Sold out Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available]

Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available]

Sold out One loose, oil-free emerald from Russia (2.2mm, round cut) (Multiple purchase discounts available)

One loose, oil-free emerald from Russia (2.2mm, round cut) (Multiple purchase discounts available)

Sold out Limited to 14 stones: One loose Mozambique hot pink sapphire (pear-shaped, approximately 4 x 3 mm) [Multiple purchase discounts available]

Limited to 14 stones: One loose Mozambique hot pink sapphire (pear-shaped, approximately 4 x 3 mm) [Multiple purchase discounts available]

Sold out Limited to 7 stones: Sri Lankan star sapphire (1 loose stone) Multiple purchase discounts available

Limited to 7 stones: Sri Lankan star sapphire (1 loose stone) Multiple purchase discounts available
Sold out グリーンランド産アイスルビー 1石（ハートシェイプ,4mm）

Ice ruby ​​from Greenland 1 stone (heart shape, 4mm) Comes with original pouch

Limited to 4 sets: Sri Lankan sapphire (2.5mm, round cut) and Sri Lankan glass body set of 2 stones. Discounts available for multiple purchases.

Limited to 4 sets: Sri Lankan sapphire (2.5mm, round cut) and Sri Lankan glass body set of 2 stones. Discounts available for multiple purchases. Sale price¥3,980
Sold out Kyanite from Nepal, 1 loose stone (indigo blue color, 4 x 6 mm, emerald cut) {Multiple purchase discount available}

Kyanite from Nepal, 1 loose stone (indigo blue color, 4 x 6 mm, emerald cut) {Multiple purchase discount available}
Sold out Limited to 6 stones: One loose, oil-free emerald from Russia (3.2mm, round cut) [Multiple purchase discounts available]

Limited to 6 stones: One loose, oil-free emerald from Russia (3.2mm, round cut) [Multiple purchase discounts available]
Sold out One loose, oil-free emerald from Russia (2.8mm, round cut) (Multiple purchase discounts available)

One loose, oil-free emerald from Russia (2.8mm, round cut) (Multiple purchase discounts available)
Sold out 【宝石商の道具】加熱処理のエチオピア産オパール 1石（ブラックオパールとの見分けシート付） - カラッツSTORE

1 heat-treated Ethiopian opal (includes a sheet to distinguish it from black opal)

Sold out 【カラフリ】K18レピドクロサイトインクォーツ2.37ct・ダイヤモンドリング - カラッツSTORE

[Colorful] K18 lepidocrocite in quartz 2.37ct diamond ring

Sold out 【ダンデライオンカット】メキシコ産ファイアオパール 7mm《コラボ》ルース ワッペン付

[Dandelion cut] Fire opal 7mm loose

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 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 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 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 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 Colombian non-oil trapiche emerald 2.00ct loose GIA

Colombian non-oil trapiche emerald 2.00ct loose GIA

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 K18ブルーサファイア・レッドピンクスピネル2石リング - KARATZ STORE｜カラッツSTORE

K18 blue sapphire/red pink spinel 2 stone ring

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 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 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 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 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 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 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 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 バイカラーサファイア 0.184ctルース - KARATZ STORE｜カラッツSTORE

Bicolor sapphire 0.184ct loose

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エメラルド0.17ct リング - KARATZ STORE｜カラッツSTORE

K18 emerald 0.17ct ring

Sold out ビルマ産ピジョンブラッドルビー 0.56ctルース GRS付 - KARATZ STORE｜カラッツSTORE

Burmese pigeon blood ruby ​​0.56ct loose with GRS

Sold out ビルマ産ピジョンブラッドルビー 0.57ctルース GRS付 - KARATZ STORE｜カラッツSTORE

Burmese pigeon blood ruby ​​0.57ct loose with GRS

Sold out Pt900ローズカットダイヤモンド0.30ct ハーフエタニティリング - KARATZ STORE｜カラッツSTORE

Pt900 rose cut diamond 0.30ct half eternity ring

Sold out 【セミオーダー代込】さくらインカットのウォーターオパール（メキシコオパール） リング - KARATZ STORE｜カラッツSTORE

[Sakura Incut] Water Opal (Mexican Opal) Ring

Sold out 【31500767掲載】ピンクダイヤモンド 0.088ctルース(FANCY PURPLE PINK , VS2)

FANCY PURPLE PINK 0.088ct loose (FANCY PURPLE PINK, VS2)

Sold out 【31500773掲載】ピンクダイヤモンド 0.104ctルース(FANCY LIGHT PURPLISH PINK, I1)

Pink diamond 0.104ct loose (FANCY LIGHT PURPLISH PINK, I1)

Sold out 【11521941掲載】スリランカ産ロイヤルブルーサファイア 0.360ctルース

Royal blue sapphire from Sri Lanka 0.360ct loose with AIGS

Sold out K18ルビー・ピンクサファイア・ダイヤモンドリング - カラッツSTORE

K18 ruby ​​pink sapphire diamond ring

Sold out K18エメラルド0.17ct ペンダント（ネックレス） - カラッツSTORE

K18 emerald 0.17ct pendant (necklace)

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.