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[On Sale May 29, 10 PM JST] 《Limited 13 Stones》Yellow Diamond Gacha, win a VVS-2/4.3mm/with Sorting Report worth 39,800 yen (regular price) 💎《Multiple Purchase Discount Available》

[On Sale May 29, 10 PM JST] 《Limited 13 Stones》Yellow Diamond Gacha, win a VVS-2/4.3mm/with Sorting Report worth 39,800 yen (regular price) 💎《Multiple Purchase Discount Available》 Sale price¥2,980
Sold out [On sale May 16th at 10 PM JST] Limited to 10 stones! Cat Cut Gacha 💎 Tourmaline, Opal, Chalcedony, etc. (Includes a bonus mini-mini cat cut stone) (Multiple purchase discount available)

[On sale May 16th at 10 PM JST] Limited to 10 stones! Cat Cut Gacha 💎 Tourmaline, Opal, Chalcedony, etc. (Includes a bonus mini-mini cat cut stone) (Multiple purchase discount available)
Sold out [On sale May 30th at 10 PM] "Limited to 11 stones" Regularly priced at 29,800 yen, win a 0.385ct/FANCY DEEP color/SI-2 diamond with sorting in this brown diamond gacha! (Multi-purchase discount available)

[On sale May 30th at 10 PM] "Limited to 11 stones" Regularly priced at 29,800 yen, win a 0.385ct/FANCY DEEP color/SI-2 diamond with sorting in this brown diamond gacha! (Multi-purchase discount available)
[On sale May 24th, 10 PM JST] 💎 Diamond Gacha with Appraisal Certificate! Get D/VS-1/3.4mm or I/VS-1/3.7mm diamonds, normally 29,800 yen! Limited to 15 stones. (Multiple purchase discount available)

[On sale May 24th, 10 PM JST] 💎 Diamond Gacha with Appraisal Certificate! Get D/VS-1/3.4mm or I/VS-1/3.7mm diamonds, normally 29,800 yen! Limited to 15 stones. (Multiple purchase discount available) Sale price¥3,980
[Sale 10 PM on June 5] "Limited 17 Stones" Emerald Gacha 💎 Win Koshu Kiseki Kiriko, rose-cut, and mint-colored emeralds, normally priced at 88,800 yen (multiple purchase discount available)

[Sale 10 PM on June 5] "Limited 17 Stones" Emerald Gacha 💎 Win Koshu Kiseki Kiriko, rose-cut, and mint-colored emeralds, normally priced at 88,800 yen (multiple purchase discount available) Sale price¥5,980
【5/22 22時販売】《限定9石》こだわりカットガチャ💎通常39,800円の甲州貴石切子 plusthree「昴：アメトリン」や山本武氏の作品など（おまけでサンジェ氏シトリン1石）《複数購入割引有》

【5/22 22時販売】《限定9石》こだわりカットガチャ💎通常39,800円の甲州貴石切子 plusthree「昴：アメトリン」や山本武氏の作品など（おまけでサンジェ氏シトリン1石）《複数購入割引有》 Sale price¥4,980
[On sale May 29th at 10 PM] "Checker x Sui" Koshu Kiseki Cut Mexican Fire Opal (usually 79,800 yen) Gacha with only 10 stones available. Win a Fire Opal (and receive one Contraluz!). [Multiple purchase discount available]

[On sale May 29th at 10 PM] "Checker x Sui" Koshu Kiseki Cut Mexican Fire Opal (usually 79,800 yen) Gacha with only 10 stones available. Win a Fire Opal (and receive one Contraluz!). [Multiple purchase discount available] Sale price¥5,980
GGG（ガドリウムガリウムガーネット） 0.658ctルース

[For sale May 13 at 10 PM] GGG (Gadolinium Gallium Garnet) 4.0mm/0.658ct Loose Stone Sale price¥8,800
coming soon 非加熱ブラジル産パライバトルマリン 0.065ctルース（CuO:1.6%、MnO:2.4%）

0.065ct loose Paraiba tourmaline from Brazil (CuO: 1.6%, MnO: 2.4%) Sale price¥49,800
coming soon ロシア産ダイヤモンド原石（ソーヤブル） 0.117ctルース

Russian rough diamond (sawable) 0.117ct loose Sale price¥29,800
coming soon 南アフリカ産ダイヤモンド原石（ソーヤブル） 0.110ct原石

South African diamond rough (sawable) 0.110ct rough Sale price¥22,800
coming soon 南アフリカ産ダイヤモンド原石（ソーヤブル） 0.085ct原石

South African diamond rough (sawable) 0.085ct rough Sale price¥15,800
coming soon マダガスカル産スペサタイトガーネット 1.053ctルース

Spessartite Garnet from Madagascar 1.053ct loose stone Sale price¥29,800
coming soon 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） 0.585ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.585ct loose stone Sale price¥12,800
coming soon ブラジル産ピンクトルマリン 0.470ctルース

Brazilian Pink Tourmaline 0.470ct Loose Stone Sale price¥9,800
coming soon ブラジル産ピンクトルマリン 0.968ctルース

Brazilian pink tourmaline 0.968ct loose stone Sale price¥18,800
coming soon ピンクトルマリン 0.558ctルース

Tanzanian pink tourmaline 0.558ct loose stone Sale price¥9,800
coming soon ルベライト 0.410ctルース

Mozambique Rubellite 0.410ct Loose Stone Sale price¥8,800
coming soon スリランカ産スターサファイア 2.093ctルース

Sri Lankan Star Sapphire 2.093ct Loose Sale price¥8,800
coming soon スリランカ産スターサファイア 1.339ctルース

Sri Lankan Star Sapphire 1.339ct Loose Sale price¥12,800
coming soon スリランカ産スターサファイア 1.682ctルース

Sri Lankan Star Sapphire 1.682ct Loose Sale price¥12,800
coming soon スリランカ産スターサファイア 1.225ctルース

Sri Lankan Star Sapphire 1.225ct Loose Sale price¥12,800
coming soon Bicolor Zoisite 1.100ct Loose Stone (Bicolor Tanzanite)

Bicolor Zoisite 1.100ct Loose Stone (Bicolor Tanzanite) Sale price¥18,800
coming soon ラベンダータンザナイト 0.784ctルース

Lavender Tanzanite 0.784ct loose stone Sale price¥12,800
coming soon メキシコ産オパール 0.499ctルース

Mexican Opal 0.499ct Loose Sale price¥3,980
coming soon メキシコ産オパール 0.854ctルース

Mexican Opal 0.854ct Loose Sale price¥5,980
coming soon スカイブルートパーズ 1.051ctルース

Sky blue topaz 1.051ct loose stone Sale price¥8,800
Sold out マダガスカル産パパラチアサファイア 0.296ctルース

[On Sale June 6th at 10 PM] Madagascar Padparadscha Sapphire 3.9mm/0.296ct Loose Stone with DGL Certificate
Sold out [On Sale 6/6] Blue Diamond (Treated) Gacha, including Ice Blue Diamond (normally ¥35,800), limited to 11 stones (plus 1 tapered cut stone) [Multiple Purchase Discount Available]

[On Sale 6/6] Blue Diamond (Treated) Gacha, including Ice Blue Diamond (normally ¥35,800), limited to 11 stones (plus 1 tapered cut stone) [Multiple Purchase Discount Available]
コロンビア産パイライトインエメラルド 4.221ctルース

[Sale on June 6 at 10 PM] Pyrite in Emerald from Chivor Mine, Colombia, 4.221 ct Loose Stone Sale price¥98,000
[On sale 6/6 at 10 PM] Limited to 6 Stones: Needle-Inclusion Blue Topaz Loose Stone (Avg. 16ct) - Multiple Purchase Discount Available

[On sale 6/6 at 10 PM] Limited to 6 Stones: Needle-Inclusion Blue Topaz Loose Stone (Avg. 16ct) - Multiple Purchase Discount Available Sale price¥4,980
[On Sale June 6th, 10 PM JST] 11-Piece Limited Edition Madagascar Sapphire Gacha (Including bi-color and silky varieties, 3.5-5.4mm) [Multi-buy discount available]

[On Sale June 6th, 10 PM JST] 11-Piece Limited Edition Madagascar Sapphire Gacha (Including bi-color and silky varieties, 3.5-5.4mm) [Multi-buy discount available] Sale price¥4,980
[On Sale June 6th]《Limited to 9 Stones》Brazilian Amethyst Single Stone Loose (Includes Elestial and Bi-Color Amethyst)《Bulk Purchase Discount Available》

[On Sale June 6th]《Limited to 9 Stones》Brazilian Amethyst Single Stone Loose (Includes Elestial and Bi-Color Amethyst)《Bulk Purchase Discount Available》 Sale price¥3,980
ネパール産カイヤナイト 2.906ctルース

[On sale June 6th, 10 PM] Nepal Kyanite 2.906ct Loose Stone with Certificate Sale price¥19,800
{June Campaign Limited Edition} Rare Stone Gacha💎 Padparadscha Sapphire 0.3ct+ with Certificate, Benitoite, Red Beryl, etc. Loose Stones for 1 Stone {Multiple Purchase Discounts Available}

{June Campaign Limited Edition} Rare Stone Gacha💎 Padparadscha Sapphire 0.3ct+ with Certificate, Benitoite, Red Beryl, etc. Loose Stones for 1 Stone {Multiple Purchase Discounts Available} Sale price¥8,800
ブラジル産ルベライト 2.793ctルース 鑑別書

[On sale June 6th at 10 PM] Brazilian Rubellite 2.793ct Loose Stone with Certificate Sale price¥59,800
ブラジル産インペリアルトパーズ 1.237ctルース 鑑別書

Brazilian Imperial Topaz 1.237 ct Loose Stone with Certificate of Authenticity [On Sale June 5th at 10 PM] Sale price¥39,800
ロシア産デマントイドガーネット（ホーステール認む） 1.366ctルース

[Sales start June 5th, 10 PM] Russian Demantoid Garnet (horsetail inclusion visible) 6.8mm/1.366ct Loose Stone with Appraisal Report Sale price¥398,000
ロシア産デマントイドガーネット（ホーステール認む） 1.589ctルース

[On sale June 5th at 10 PM] Russian Demantoid Garnet (Horsetail inclusion confirmed) 6.9mm/1.589ct Loose Stone with Appraisal Report Sale price¥458,000
マラウイ産ムーンストーン（マラウイムーンストーン） 2.428ctルース

[On sale June 6th at 10 PM] Malawi Moonstone (Malawi Moonstone) 2.428 ct Loose Sale price¥18,800
マラウイ産ムーンストーン（マラウイムーンストーン） 2.233ctルース

[On sale June 6, 10 PM JST] Malawi Moonstone 2.233ct Loose Stone Sale price¥15,800
マラウイ産ムーンストーン（マラウイムーンストーン） 2.209ctルース

[Sale on June 6 at 10 PM] Malawi Moonstone (Malawi Moonstone) 2.209 ct loose stone Sale price¥15,800
マラウイ産ムーンストーン（マラウイムーンストーン） 2.201ctルース

[On sale June 6th at 10 PM] Malawi Moonstone 2.201ct Loose Stone Sale price¥15,800
【12563316掲載】マラウイ産ムーンストーン（マラウイムーンストーン） 2.086ctルース

[Sale on June 7 at 10 PM] Malawi Moonstone 2.086ct Loose Stone Sale price¥16,800
【12563313掲載】マラウイ産ムーンストーン（マラウイムーンストーン） 1.792ctルース

[On sale June 7th at 10 PM] Malawi Moonstone 1.792ct Loose Gemstone Sale price¥15,800
マラウイ産ムーンストーン（マラウイムーンストーン） 1.661ctルース

[Sale at 10 PM on June 6] Malawi Moonstone 1.661ct Loose Stone Sale price¥12,800
ピンクダイヤモンド 0.030ctルース(FANCY PURPLISH PINK, SI-1)

[On Sale 6/5 at 10 PM] Pink Diamond 1.95mm/0.030ct Loose Stone (FANCY PURPLISH PINK, SI-1) Central Gem Lab Sale price¥59,800
パープルダイヤモンド 0.048ctルース(FANCY VIVID PINK PURPLE, SI-1)

[On sale June 5th at 10 PM] Purple Diamond 0.048ct Loose Stone (FANCY VIVID PINK PURPLE, SI-1) CGL Sale price¥198,000

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.