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Sold out Limited to 20 stones! Includes 6 red gemstones of pigeon blood ruby ​​with AGL certificate. Discounts available for multiple purchases.

Limited to 20 stones! Includes 6 red gemstones of pigeon blood ruby ​​with AGL certificate. Discounts available for multiple purchases.
Sold out Brazilian rutilated quartz (rutile/rutilated quartz (rutilated quartz)) 1 loose stone (3.0-3.5mm, for beginners) {Multiple purchase discounts available}

Brazilian rutilated quartz (rutile/rutilated quartz (rutilated quartz)) 1 loose stone (3.0-3.5mm, for beginners) {Multiple purchase discounts available}
Sold out Limited to 13 stones! Tourmaline gacha featuring indigolite tourmaline worth ¥50,000 and rubellite worth ¥60,000. Plus, one canary yellow tourmaline. Discounts available for multiple purchases.

Limited to 13 stones! Tourmaline gacha featuring indigolite tourmaline worth ¥50,000 and rubellite worth ¥60,000. Plus, one canary yellow tourmaline. Discounts available for multiple purchases.

Sold out Ruby Lottery: Win a 0.59ct Pigeon Blood Ruby with AIGS or a Burmese Star Ruby (Multiple Purchase Discounts Available)

Ruby Lottery: Win a 0.59ct Pigeon Blood Ruby with AIGS or a Burmese Star Ruby (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,ピンクサファイア）《複数購入割引有》

Greenland Ice Ruby 1 stone (heart shape, 4mm, pink sapphire) {Multiple purchase discount available}

Sold out Rose quartz 1 stone (heart, approx. 23ct)《Discount available for multiple purchases》

Rose quartz 1 stone (heart, approx. 23ct)《Discount available for multiple purchases》

Sold out 《New Tucson Arrivals・Limited to 13 Stones》Pakistani Lazurite (Azure Stone) Loose Stone《Multiple Purchase Discount Available》

《New Tucson Arrivals・Limited to 13 Stones》Pakistani Lazurite (Azure Stone) Loose Stone《Multiple Purchase Discount Available》
Sold out Limited to 14 stones: Rainbow Garnet from Tenkawa Village, Nara Prefecture (faceted by Saint-Jay) [Multiple purchase discounts available]

Limited to 14 stones: Rainbow Garnet from Tenkawa Village, Nara Prefecture (faceted by Saint-Jay) [Multiple purchase discounts available]
Sold out 《Limited to 15 Stones》Rare Stone Gacha 💎 Featuring non-oiled red beryl with GIA certificate for 98,000 yen, cinnabar, Mozambique Paraiba tourmaline, benitoite, and more. 《Multiple purchase discount available》

《Limited to 15 Stones》Rare Stone Gacha 💎 Featuring non-oiled red beryl with GIA certificate for 98,000 yen, cinnabar, Mozambique Paraiba tourmaline, benitoite, and more. 《Multiple purchase discount available》
Sold out Red Gemstone Gacha including Pigeon Blood Ruby AIGS worth ¥60,000 💎 Ruby and Hot Pink Sapphire (Multiple Purchase Discounts Available)

Red Gemstone Gacha including Pigeon Blood Ruby AIGS worth ¥60,000 💎 Ruby and Hot Pink Sapphire (Multiple Purchase Discounts Available)
Sold out 《限定12石》ブラジル産ラズライト（天藍石）1石ルース（初心者向け）《複数購入割引有》

1 stone loose Brazilian lazurite (for beginners)

Sold out グリーンランド産ルビー 1石（ラウンドカット,2mm）

1 Ruby from Greenland (round cut, 2mm) with certificate

Sold out Rainbow Garnet Rough Stone + 2 Loose Stones Set from Tenkawa Village, Nara Prefecture (Multiple Purchase Discounts Available)

Rainbow Garnet Rough Stone + 2 Loose Stones Set from Tenkawa Village, Nara Prefecture (Multiple Purchase Discounts Available)
Sold out Rhodolite garnet (octagonal cut) 1ct 1 stone

Rhodolite garnet (octagonal cut) 1ct 1 stone

Sold out Limited to 10 stones! Pigeon Blood Ruby (normally priced at 39,800 yen) Red Gemstone Gacha with AIGS Certificate (Multiple purchase discounts available)

Limited to 10 stones! Pigeon Blood Ruby (normally priced at 39,800 yen) Red Gemstone Gacha with AIGS Certificate (Multiple purchase discounts available)

Sold out [On sale June 8th, 10 PM JST] "Limited to 12 Stones" Garnet Gacha with 8mm Dandelion Cut Rhodolite Garnet (Normally 39,800 yen) "Multiple Purchase Discount Available"

[On sale June 8th, 10 PM JST] "Limited to 12 Stones" Garnet Gacha with 8mm Dandelion Cut Rhodolite Garnet (Normally 39,800 yen) "Multiple Purchase Discount Available"
Sold out Limited to 16 stones: Greenland Ruby, 1.2mm, Loose (Top Quality, Drawstring Pouch Included) Multiple Purchase Discounts Available

Limited to 16 stones: Greenland Ruby, 1.2mm, Loose (Top Quality, Drawstring Pouch Included) Multiple Purchase Discounts Available
Sold out Limited to 9 stones: 1 Afghan Lazurite in Sodalite loose stone (faceted cut, average 0.45ct) Multiple purchase discounts available

Limited to 9 stones: 1 Afghan Lazurite in Sodalite loose stone (faceted cut, average 0.45ct) Multiple purchase discounts available
Sold out Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases.

Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases.
Sold out 【猫カット】ローズクォーツ（8mm） - カラッツSTORE

[Cat cut] Rose quartz (8mm)《Multiple purchase discount available》

Sold out Limited to 10 stones! Rare Stone Gacha! 💎 Shinsha, Zimbabwean Euclase, Red Beryl, Star Peridot, and more. Multi-buy discounts available.

Limited to 10 stones! Rare Stone Gacha! 💎 Shinsha, Zimbabwean Euclase, Red Beryl, Star Peridot, and more. Multi-buy discounts available.
Sold out Mini Kite Cut Loose Stone (Includes 2 Paraiba Tourmalines, Green Beryl, Ruby, Peridot, etc.) {Multiple Purchase Discounts Available}

Mini Kite Cut Loose Stone (Includes 2 Paraiba Tourmalines, Green Beryl, Ruby, Peridot, etc.) {Multiple Purchase Discounts Available}

Sold out [Limited to 8 stones] Jam Gacha💎 1 Rainbow Garnet stone (January birthstone) from Tenkawa Village, Nara Prefecture [Multiple purchase discounts available]

[Limited to 8 stones] Jam Gacha💎 1 Rainbow Garnet stone (January birthstone) from Tenkawa Village, Nara Prefecture [Multiple purchase discounts available]
Sold out Limited to 11 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases.

Limited to 11 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases.

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 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 Greenland Ruby Loose (approx. 2.3mm, Top Color, Certificate Included) (Multiple Purchase Discounts Available)

Greenland Ruby Loose (approx. 2.3mm, Top Color, Certificate Included) (Multiple Purchase Discounts Available)

Sold out Rainbow Garnet (Rose Cut, 3.0-5.5mm) from Tenkawa Village, Nara Prefecture, Single Loose Stone (Multiple Purchase Discounts Available)

Rainbow Garnet (Rose Cut, 3.0-5.5mm) from Tenkawa Village, Nara Prefecture, Single Loose Stone (Multiple Purchase Discounts Available)
Sold out Limited to 4 stones: Sri Lankan Rhodolite Garnet (4mm, Round Cut) - 1 loose stone (Multiple purchase discounts available)

Limited to 4 stones: Sri Lankan Rhodolite Garnet (4mm, Round Cut) - 1 loose stone (Multiple purchase discounts available)
Sold out Limited to 13 stones: One loose rhodochrosite stone (4mm cabochon cut) from Detroit City, USA. Discounts available for multiple purchases.

Limited to 13 stones: One loose rhodochrosite stone (4mm cabochon cut) from Detroit City, USA. Discounts available for multiple purchases.
Sold out Limited to 7 stones: 1 Hokkaido rhodochrosite loose stone (4mm, rose cut) Multiple purchase discounts available

Limited to 7 stones: 1 Hokkaido rhodochrosite loose stone (4mm, rose cut) 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

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 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 【カメリアカット】レモンクォーツ8mmルース 直筆サイン付&ワッペン付 - カラッツSTORE

[Camellia cut] Lemon quartz 8mm loose with autograph and emblem

Sold out ルベライト 0.410ctルース

Mozambique Rubellite 0.410ct Loose Stone
Sold out ルビー 0.496ctルース

[Sale on June 12 at 10 PM] Ruby 0.496 ct Loose Stone (Hokikyō)
Sold out Andesine Labradorite from Madagascar (commonly known as Rainbow Moonstone) 0.826ct loose

Andesine Labradorite from Madagascar (commonly known as Rainbow Moonstone) 0.826ct loose
Sold out マダガスカル産アンデシン・ラブラドライト（通称名 レインボームーンストーン） 0.971ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 6.2mm/0.971ct Loose Stone
Sold out アンデシン・ラブラドライト（通称名 レインボームーンストーン） 0.404ctルース

Andesine Labradorite (also known as Rainbow Moonstone) 0.404ct loose stone
Sold out アフガニスタン産ラピスラズリ 3.279ctルース

[On Sale May 10th at 10 PM] Afghanistan Lapis Lazuli 9.7mm / 3.279ct Rose Cut Loose Stone
Sold out アフガニスタン産ラピスラズリ 1.103ctルース

【Sales start May 10th, 10 PM JST】Afghanistan Lapis Lazuli 1.103ct Loose Stone
Sold out 奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 1.374ctルース

[For sale May 23, 10 PM JST] Rainbow Garnet (Andradite Garnet) from Tenkawa Village, Nara Prefecture 6.7mm/1.374ct Loose Stone
Sold out マダガスカル産アンデシン・ラブラドライト（通称名 レインボームーンストーン） 1.003ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 1.003ct loose stone
Sold out Untreated Vietnamese Star Ruby 1.696ct Loose Stone with Certification

Untreated Vietnamese Star Ruby 1.696ct Loose Stone with Certification
Sold out 【12562769掲載】ブラジル産マイカインローズクォーツ（雲母インローズクォーツ） 3.123ctルース

Brazilian Mica in Rose Quartz (Muscovite in Rose Quartz) 3.123ct Loose

Sold out 奈良県天川村産レインボーガーネット（アンドラダイトガーネット） 0.922ctルース

Rainbow garnet (andradite garnet) from Tenkawa Village, Nara Prefecture 0.922ct loose
Sold out Lazulite from Pakistan 2.5mm/0.063ct Loose Gemstone with Certificate

Lazulite from Pakistan 2.5mm/0.063ct Loose Gemstone with Certificate

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.