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【1/4 22時販売】《限定12石》レアストーンガチャ💎ブラジル産パライバトルマリン0.22ct(ソーティング付)・ジンバブエ産ユークレース・モザンビーク産パライバトルマリン・ベニトアイト・アキシナイト・辰砂（シンシャ）《複数購入割引有》

【1/4 22時販売】《限定12石》レアストーンガチャ💎ブラジル産パライバトルマリン0.22ct(ソーティング付)・ジンバブエ産ユークレース・モザンビーク産パライバトルマリン・ベニトアイト・アキシナイト・辰砂（シンシャ）《複数購入割引有》 Sale price¥6,980
【12/31 22時販売】《限定15石》ブルー石ガチャ（ブラジル産パライバトルマリン0.157ct・ドイツ産アウイナイト3.5mm・トップクオリティのベニトアイト・パライバトルマリンインクォーツ4.5mm・カスタムカットのアクアマリン）《複数購入割引有》

【12/31 22時販売】《限定15石》ブルー石ガチャ（ブラジル産パライバトルマリン0.157ct・ドイツ産アウイナイト3.5mm・トップクオリティのベニトアイト・パライバトルマリンインクォーツ4.5mm・カスタムカットのアクアマリン）《複数購入割引有》 Sale price¥6,980
【1/6(火) 22時販売終了】🎍2026年 新春レアストーンガチャ🎍《新春レアストーンガチャ》ベニトアイトやマスグラバイトやノンオイルエメラルドなど 50,000円福袋・合計3石《最大13万円相当》【福袋まとめて購入割引対象】　

【1/6(火) 22時販売終了】🎍2026年 新春レアストーンガチャ🎍《新春レアストーンガチャ》ベニトアイトやマスグラバイトやノンオイルエメラルドなど 50,000円福袋・合計3石《最大13万円相当》【福袋まとめて購入割引対象】　 Sale price¥50,000
[Available at 10 PM on December 20th] Limited to 11 Stones: Montana Sapphire (Rock Creek Mine) Gacha! 1 Loose Stone (Oval Cut, 5x3mm) [Multiple Purchase Discounts Available]

[Available at 10 PM on December 20th] Limited to 11 Stones: Montana Sapphire (Rock Creek Mine) Gacha! 1 Loose Stone (Oval Cut, 5x3mm) [Multiple Purchase Discounts Available] Sale price¥3,980
[On sale until 10 PM] Limited to 10 stones: Yamamoto Cut Gacha, featuring carnelian, lemon quartz, rock crystal, and more. Discounts available for multiple purchases.

[On sale until 10 PM] Limited to 10 stones: Yamamoto Cut Gacha, featuring carnelian, lemon quartz, rock crystal, and more. Discounts available for multiple purchases. Sale price¥7,980
[12/13 10 PM Sale] {Limited to 13 Stones} Tourmaline Gacha: Including Indigolite Tourmaline worth ¥50,000 and Rubellite worth ¥60,000. Plus, get one Canary Yellow Tourmaline. {Multiple Purchase Discounts Available}

[12/13 10 PM Sale] {Limited to 13 Stones} Tourmaline Gacha: Including Indigolite Tourmaline worth ¥50,000 and Rubellite worth ¥60,000. Plus, get one Canary Yellow Tourmaline. {Multiple Purchase Discounts Available} Sale price¥5,980
[12/12 10 PM Sale] Limited to 15 stones! Includes a rare UNEVEN Fancy color gemstone (normally ¥39,800) and a 0.428ct Fancy color gemstone (¥69,800). Get one loose yellow diamond! Discounts available for multiple purchases.

[12/12 10 PM Sale] Limited to 15 stones! Includes a rare UNEVEN Fancy color gemstone (normally ¥39,800) and a 0.428ct Fancy color gemstone (¥69,800). Get one loose yellow diamond! Discounts available for multiple purchases. Sale price¥3,980
[On sale 12/6 at 10 PM] {Limited to 13 stones} Loose Spinel Gacha Stones, Including Sakura In-Cut and Dandelion Cut {Multiple purchase discounts available}

[On sale 12/6 at 10 PM] {Limited to 13 stones} Loose Spinel Gacha Stones, Including Sakura In-Cut and Dandelion Cut {Multiple purchase discounts available} Sale price¥4,980
[Available at 10 PM on December 6th] Limited Quantity! Guess what you'll receive! Gacha Set of 2 Rough and Loose Stones (Rare Stones Included) [Multiple Purchase Discounts Available]

[Available at 10 PM on December 6th] Limited Quantity! Guess what you'll receive! Gacha Set of 2 Rough and Loose Stones (Rare Stones Included) [Multiple Purchase Discounts Available] Sale price¥1,680
Limited to 14 stones: Brazilian dendritic quartz loose stone (average 7 carats) Multiple purchase discounts available

Limited to 14 stones: Brazilian dendritic quartz loose stone (average 7 carats) Multiple purchase discounts available Sale price¥2,980
Limited to 14 stones: Beryllium-heated sapphire (3.5mm, KEN cut) - 1 loose stone. Discounts available for multiple purchases.

Limited to 14 stones: Beryllium-heated sapphire (3.5mm, KEN cut) - 1 loose stone. Discounts available for multiple purchases. Sale price¥1,580
[On sale 12/6 at 10 PM] Limited to 20 gems! Includes 6 red gemstones, including pigeon blood ruby rubies with AGL certificates. Discounts available for multiple purchases.

[On sale 12/6 at 10 PM] Limited to 20 gems! Includes 6 red gemstones, including pigeon blood ruby rubies with AGL certificates. Discounts available for multiple purchases. Sale price¥6,980
[Available at 10 PM on November 24th] Limited Edition (12 stones) VS Equivalent Fluorescent Diamond Gacha with Bonus Mini Slice Diamond (Multiple Purchase Discounts Available)

[Available at 10 PM on November 24th] Limited Edition (12 stones) VS Equivalent Fluorescent Diamond Gacha with Bonus Mini Slice Diamond (Multiple Purchase Discounts Available) Sale price¥6,980
[On sale November 8th at 10pm] Limited to 4 stones: Carving Gacha (pink tourmaline, average 3.4 carats) 1 loose stone [Multiple purchase discounts available]

[On sale November 8th at 10pm] Limited to 4 stones: Carving Gacha (pink tourmaline, average 3.4 carats) 1 loose stone [Multiple purchase discounts available] Sale price¥3,980
[Sales start November 2nd at 10 PM] [Limited to 10 stones] Tanzanite rough gacha including bicolor pink tanzanite rough (average 4.2 carats) [Multiple purchase discounts available]

[Sales start November 2nd at 10 PM] [Limited to 10 stones] Tanzanite rough gacha including bicolor pink tanzanite rough (average 4.2 carats) [Multiple purchase discounts available] Sale price¥6,980
[On sale November 1st at 10 PM] [Limited to 12 stones] Brazilian Indigolite Tourmaline Gacha Loose Stone (4x3mm, Oval Cut) [Multiple purchase discounts available]

[On sale November 1st at 10 PM] [Limited to 12 stones] Brazilian Indigolite Tourmaline Gacha Loose Stone (4x3mm, Oval Cut) [Multiple purchase discounts available] Sale price¥4,980
Limited to 11 stones: Sakura-shaped Contralus Opal and a specially cut Opal Gacha with one loose stone. Discounts available for multiple purchases.

Limited to 11 stones: Sakura-shaped Contralus Opal and a specially cut Opal Gacha with one loose stone. Discounts available for multiple purchases. Sale price¥3,980
Limited to 10 stones! Spinel Gacha: 1 loose stone including a 1.17ct bicolor spinel. Multiple purchase discounts available.

Limited to 10 stones! Spinel Gacha: 1 loose stone including a 1.17ct bicolor spinel. Multiple purchase discounts available. Sale price¥4,980
[On sale 10/19 at 10 PM] {Limited to 10 stones} Paraiba Tourmaline Gacha 💎 Paraiba Tourmaline or Paraiba Tourmaline in Quartz (1 loose stone) {Multiple purchase discounts available}

[On sale 10/19 at 10 PM] {Limited to 10 stones} Paraiba Tourmaline Gacha 💎 Paraiba Tourmaline or Paraiba Tourmaline in Quartz (1 loose stone) {Multiple purchase discounts available} Sale price¥6,980
Limited Edition Synthetic Moissanite Gacha! 💎 Koshu Kiriko Plus Three Moissanite, Sange Cut, Pink, and Blue Moissanite Loose Stones Available. Multiple Purchase Discounts Available.

Limited Edition Synthetic Moissanite Gacha! 💎 Koshu Kiriko Plus Three Moissanite, Sange Cut, Pink, and Blue Moissanite Loose Stones Available. Multiple Purchase Discounts Available. Sale price¥4,980
Limited to 20 stones! Includes 2 Koshu Kiriko fire opals and 1 loose fire opal. Discounts available for multiple purchases.

Limited to 20 stones! Includes 2 Koshu Kiriko fire opals and 1 loose fire opal. Discounts available for multiple purchases. Sale price¥4,980
Limited Stock! Single Loose Tourmaline Gacha Stones with Special Cuts, Including Sakura In Cut (from Congo) and Dandelion Cut (from Brazil) (Multiple Purchase Discounts Available)

Limited Stock! Single Loose Tourmaline Gacha Stones with Special Cuts, Including Sakura In Cut (from Congo) and Dandelion Cut (from Brazil) (Multiple Purchase Discounts Available) Sale price¥4,980
Limited to 22 Sapphire Gacha (Includes Sakura In-Cut & Sakura Shape Sapphire, Bonus Hot Pink Sapphire) (Multiple Purchase Discounts Available)

Limited to 22 Sapphire Gacha (Includes Sakura In-Cut & Sakura Shape Sapphire, Bonus Hot Pink Sapphire) (Multiple Purchase Discounts Available) Sale price¥6,980
Limited to 10 stones: Koshu Precious Stone Kiriko "Broom" plusthree 45ct Dendritic Quartz Gacha (Includes 1 Copper Rutile in Quartz) (Multiple purchase discounts available)

Limited to 10 stones: Koshu Precious Stone Kiriko "Broom" plusthree 45ct Dendritic Quartz Gacha (Includes 1 Copper Rutile in Quartz) (Multiple purchase discounts available) Sale price¥3,980
[3 sets left] Gemstone Gacha 💎 1 of the Three Great Gemstones Gacha + 2 Loose Pink Sapphires [Multiple purchase discounts available]

[3 sets left] Gemstone Gacha 💎 1 of the Three Great Gemstones Gacha + 2 Loose Pink Sapphires [Multiple purchase discounts available] Sale price¥6,980
ルビー 0.258ctルース

Ruby 0.258ct loose Sale price¥18,800
Limited to 13 stones Gem gacha💎 Beautiful colored tanzanite 7mm, special cut sphene, heliodor (lots of inclusions) 1 loose stone Multiple purchase discounts available

Limited to 13 stones Gem gacha💎 Beautiful colored tanzanite 7mm, special cut sphene, heliodor (lots of inclusions) 1 loose stone Multiple purchase discounts available Sale price¥4,980
Limited to 9 sets Diamond Gacha 💎 Yellow Diamond Rough Stone and Loose Stone Set of 2 《Multiple Purchase Discounts Available》

Limited to 9 sets Diamond Gacha 💎 Yellow Diamond Rough Stone and Loose Stone Set of 2 《Multiple Purchase Discounts Available》 Sale price¥2,980
コロンビア産エメラルド 37.764ct原石（ガチャラ鉱山）

Colombian emerald rough stone 37.764ct (Gachala mine) Sale price¥598,000
《17色》宝石ガチャガチャ💎新作モアッサナイト6.5mm（H&C ハート＆キューピッド）💎《複数購入割引有》 - カラッツSTORE

《17 colors》Gem Gacha💎Synthetic Moissanite 1 stone loose (H&C Heart & Cupid, 6.5mm)💎《Multiple purchase discount available》 Sale price¥5,980
{For beginners} Gem gacha💎 1 loose gemstone (Chrome tourmaline, Mahenge spinel, etc.) cut by Sri Lankan craftsman Sanjay {Multiple purchase discounts available}

{For beginners} Gem gacha💎 1 loose gemstone (Chrome tourmaline, Mahenge spinel, etc.) cut by Sri Lankan craftsman Sanjay {Multiple purchase discounts available} Sale price¥3,980
Gem Gacha💎 Lepidolite in Quartz 1 stone《Multiple purchase discount available》

Gem Gacha💎 Lepidolite in Quartz 1 stone《Multiple purchase discount available》 Sale price¥3,980
Gem Gacha💎Chalcedony Gacha (1 in 5 will win a camellia cut)《Multiple purchase discounts available》

Gem Gacha💎Chalcedony Gacha (1 in 5 will win a camellia cut)《Multiple purchase discounts available》 Sale price¥3,980
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
Gem Gacha💎 Custom cut spinel《August birthstone》《Multiple purchase discounts available》

Gem Gacha💎 Custom cut spinel《August birthstone》《Multiple purchase discounts available》 Sale price¥5,980
Sold out 【1/1 0時販売開始】🎍2026年 新春ガチャ🎍 《新春2万円ガチャ宝石福袋》最大10万円相当の宝石＋アヒマディ博士サイン付き新刊書籍「麗しの宝石・結晶・鉱物　近山晶コレクション」が必ずもらえる【新年限定・宝石ガチャ】【福袋まとめて購入割引】

【1/1 0時販売開始】🎍2026年 新春ガチャ🎍 《新春2万円ガチャ宝石福袋》最大10万円相当の宝石＋アヒマディ博士サイン付き新刊書籍「麗しの宝石・結晶・鉱物　近山晶コレクション」が必ずもらえる【新年限定・宝石ガチャ】【福袋まとめて購入割引】
Sold out 【1/2 22時販売】《限定11石》バイカラーガチャ（ジンバブエ産バイカラーユークレース、バイカラーサファイア、バイカラーゾイサイト含む）《複数購入割引有》

【1/2 22時販売】《限定11石》バイカラーガチャ（ジンバブエ産バイカラーユークレース、バイカラーサファイア、バイカラーゾイサイト含む）《複数購入割引有》
Sold out 【1/3 22時販売】《限定13石》ベリルガチャ（甲州貴石切子のアクアマリン・ボルテックスカット含む）1石ルース《複数購入割引有》

【1/3 22時販売】《限定13石》ベリルガチャ（甲州貴石切子のアクアマリン・ボルテックスカット含む）1石ルース《複数購入割引有》
Sold out 【1/1 0時販売開始】🎍2026年 新春ガチャ🎍 《新春1万円ガチャ宝石福袋》最大4万円相当の宝石が当たるチャンス 【新年限定・宝石ガチャ】【福袋まとめて購入割引】

【1/1 0時販売開始】🎍2026年 新春ガチャ🎍 《新春1万円ガチャ宝石福袋》最大4万円相当の宝石が当たるチャンス 【新年限定・宝石ガチャ】【福袋まとめて購入割引】
Sold out [Available at 10 PM on December 21st] Limited to 20 stones: Neon-colored Paraiba gacha containing Brazilian Paraiba tourmaline (CuO: 2.3%, MnO: 2.6%) [Multiple purchase discounts available]

[Available at 10 PM on December 21st] Limited to 20 stones: Neon-colored Paraiba gacha containing Brazilian Paraiba tourmaline (CuO: 2.3%, MnO: 2.6%) [Multiple purchase discounts available]
Sold out [Available at 10 PM on December 20th] Limited Edition of 7 Montana Sapphires (Rock Creek Mine) Gacha (Pear Shape, Approx. 5 x 3mm) [Multiple Purchase Discounts Available]

[Available at 10 PM on December 20th] Limited Edition of 7 Montana Sapphires (Rock Creek Mine) Gacha (Pear Shape, Approx. 5 x 3mm) [Multiple Purchase Discounts Available]
Sold out [Available at 10 PM on December 20th] Limited Edition 10 Stones Rare Stone Gacha💎 Shinsha, Zimbabwean Euclase, Red Beryl, Star Peridot, and More! Discounts Available for Multiple Purchases

[Available at 10 PM on December 20th] Limited Edition 10 Stones Rare Stone Gacha💎 Shinsha, Zimbabwean Euclase, Red Beryl, Star Peridot, and More! Discounts Available for Multiple Purchases
Sold out [On Sale 12/21 10 PM] {Limited Remaining} Red Gemstone Gacha Including Pigeon Blood Ruby AIGS Worth ¥60,000 💎 Rubies and Hot Pink Sapphires {Multiple Purchase Discounts Available}

[On Sale 12/21 10 PM] {Limited Remaining} Red Gemstone Gacha Including Pigeon Blood Ruby AIGS Worth ¥60,000 💎 Rubies and Hot Pink Sapphires {Multiple Purchase Discounts Available}
Sold out [On sale at 10 PM on December 20th] [Limited to 11 stones] Diamond Gacha including VVS/4mm, VS/3mm, etc. worth ¥40,000 [Multiple purchase discounts available]

[On sale at 10 PM on December 20th] [Limited to 11 stones] Diamond Gacha including VVS/4mm, VS/3mm, etc. worth ¥40,000 [Multiple purchase discounts available]
Sold out [/ On sale at 10pm] [Limited to 18 stones] Zircon Gacha - Win Koshu Precious Stones, Clover In, and Sakura Shapes [Multiple purchase discounts available]

[/ On sale at 10pm] [Limited to 18 stones] Zircon Gacha - Win Koshu Precious Stones, Clover In, and Sakura Shapes [Multiple purchase discounts available]
Sold out [12/19 10 PM Sale] [Limited to 10 Stones] Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More Bicolor Gacha 💎 Single Loose Stone [Multiple Purchase Discounts Available]

[12/19 10 PM Sale] [Limited to 10 Stones] Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More Bicolor Gacha 💎 Single Loose Stone [Multiple Purchase Discounts Available]
Sold out [Available at 10 PM on December 13th] Limited to 9 stones: Australian Black Opal (including semi-black opal) Loose Stone Gacha (Includes 1 bonus white opal) [Multiple purchase discounts available]

[Available at 10 PM on December 13th] Limited to 9 stones: Australian Black Opal (including semi-black opal) Loose Stone Gacha (Includes 1 bonus white opal) [Multiple purchase discounts available]

Sold out 【12/7 22時販売】《限定10石》ブルー宝石ガチャ💎ブラジル産パライバトルマリン0.142ct・ジンバブエ産ユークレース・1.17ctのコバルトスピネル(鑑別書付：カラーシフト)・ベニトアイトなど《複数購入割引有》

【12/7 22時販売】《限定10石》ブルー宝石ガチャ💎ブラジル産パライバトルマリン0.142ct・ジンバブエ産ユークレース・1.17ctのコバルトスピネル(鑑別書付：カラーシフト)・ベニトアイトなど《複数購入割引有》

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.