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[On sale July 20th at 10 PM] "Limited to 13 Stones" Diamond Gacha: Win a FANCY VIVID Yellow Diamond (with sorting report) worth 22,800 yen. One loose stone. (Multiple purchase discount available.)

[On sale July 20th at 10 PM] "Limited to 13 Stones" Diamond Gacha: Win a FANCY VIVID Yellow Diamond (with sorting report) worth 22,800 yen. One loose stone. (Multiple purchase discount available.) Sale price¥2,580
[Sales start 8/13 10 PM] Limited to 12 Stones! Beryl Gacha where you can win a 12mm camellia-cut Limonite in Beryl or Santa Maria Aquamarine with a certificate of authenticity for 45,800 yen. (Multiple purchase discount available)

[Sales start 8/13 10 PM] Limited to 12 Stones! Beryl Gacha where you can win a 12mm camellia-cut Limonite in Beryl or Santa Maria Aquamarine with a certificate of authenticity for 45,800 yen. (Multiple purchase discount available) Sale price¥4,580
[On sale August 12th at 10 PM] "Limited to 15 Stones" Diamond Gacha featuring rare butterfly-cut diamonds "Multiple Purchase Discount Available"

[On sale August 12th at 10 PM] "Limited to 15 Stones" Diamond Gacha featuring rare butterfly-cut diamonds "Multiple Purchase Discount Available" Sale price¥5,980
[On sale August 15th at 10 PM] Paraiba Gacha where you can win a Brazilian Paraiba Tourmaline (CuO: 1.4%, MnO: 2.7%) normally priced at 39,800 yen, limited to 10 stones. (Multiple purchase discount available)

[On sale August 15th at 10 PM] Paraiba Gacha where you can win a Brazilian Paraiba Tourmaline (CuO: 1.4%, MnO: 2.7%) normally priced at 39,800 yen, limited to 10 stones. (Multiple purchase discount available) Sale price¥8,800
[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
[Sale starts July 7 at 10 PM] Limited to 14 Stones: Special Cut Gacha [Bulk Purchase Discount Available]

[Sale starts July 7 at 10 PM] Limited to 14 Stones: Special Cut Gacha [Bulk Purchase Discount Available] Sale price¥4,980
[On Sale July 31st at 10 PM] "Limited to 20 Stones" Indigo Tourmaline Gacha with 5 Gem-Quality Stones + 1 Loose Stone (Certificate Included) (Multiple Purchase Discount Available)

[On Sale July 31st at 10 PM] "Limited to 20 Stones" Indigo Tourmaline Gacha with 5 Gem-Quality Stones + 1 Loose Stone (Certificate Included) (Multiple Purchase Discount Available) Sale price¥3,980
[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
[Limited to 24 stones] Oregon Sunstone from America with beautiful Schiller (Oval cut, 5 x 7mm) [Multiple purchase discount available]

[Limited to 24 stones] Oregon Sunstone from America with beautiful Schiller (Oval cut, 5 x 7mm) [Multiple purchase discount available] Sale price¥5,980
[Limited to 16 Stones] Yellow Diamond Gacha including Sorting [Multiple Purchase Discount Available]

[Limited to 16 Stones] Yellow Diamond Gacha including Sorting [Multiple Purchase Discount Available] Sale price¥3,980
[Sale starts July 20, 10 PM JST] Limited to 9 Stones: Opal Gacha, including Black Opal (plus a free Fire Opal!) (Multiple purchase discount available)

[Sale starts July 20, 10 PM JST] Limited to 9 Stones: Opal Gacha, including Black Opal (plus a free Fire Opal!) (Multiple purchase discount available) Sale price¥3,980
[On sale July 19th at 10 PM] Limited to 12 Stones: Spanish Sphalerite Gacha Single Stone Loose Gemstone [Multi-purchase discount available]

[On sale July 19th at 10 PM] Limited to 12 Stones: Spanish Sphalerite Gacha Single Stone Loose Gemstone [Multi-purchase discount available] Sale price¥3,980
[On sale July 19 at 10 PM] Limited 12 Pieces: Pakistan Vayrynenite Gacha 1 Piece Loose Stone (Average 0.03ct) - Bulk Purchase Discount Available

[On sale July 19 at 10 PM] Limited 12 Pieces: Pakistan Vayrynenite Gacha 1 Piece Loose Stone (Average 0.03ct) - Bulk Purchase Discount Available Sale price¥2,980
[7/18 10 PM JST Release] Windsor Sapphire Gacha (1 of 14 Limited Stones) (Bicolor, Silky, Color Change, Avg. 0.30ct) (Multi-purchase Discount Available)

[7/18 10 PM JST Release] Windsor Sapphire Gacha (1 of 14 Limited Stones) (Bicolor, Silky, Color Change, Avg. 0.30ct) (Multi-purchase Discount Available) Sale price¥5,980
【7/11 22時販売】《限定15石》通常29,800円のフォレストグリーン中宝ソ付きや通常22,800円のカナリーイエローやアイスブルーなどトリートダイヤガチャ《複数購入割引有》

【7/11 22時販売】《限定15石》通常29,800円のフォレストグリーン中宝ソ付きや通常22,800円のカナリーイエローやアイスブルーなどトリートダイヤガチャ《複数購入割引有》 Sale price¥3,980
[On sale June 28th at 10 PM] Brazilian Paraiba Tourmaline Gacha with sorting results (CuO: 2.1%, MnO: 2.2%), usually ¥45,800, now with a chance to win one of 18 limited stones. (Multiple purchase discount available)

[On sale June 28th at 10 PM] Brazilian Paraiba Tourmaline Gacha with sorting results (CuO: 2.1%, MnO: 2.2%), usually ¥45,800, now with a chance to win one of 18 limited stones. (Multiple purchase discount available) Sale price¥9,800
[Sale from 10 PM on June 28] [Limited to 15 Stones] Synthetic Gem Gacha 💎 Includes a 1.02ct/D/VS1/3EX certified lab-grown diamond, normally priced at 50,000 yen (with a bonus synthetic cobalt spinel) [Bulk purchase discount available]

[Sale from 10 PM on June 28] [Limited to 15 Stones] Synthetic Gem Gacha 💎 Includes a 1.02ct/D/VS1/3EX certified lab-grown diamond, normally priced at 50,000 yen (with a bonus synthetic cobalt spinel) [Bulk purchase discount available] Sale price¥5,980
[On sale June 27th at 10 PM] Limited to 10 Stones: Sri Lankan Chrysoberyl (Cut by Mr. Sanje) Gacha (Includes Parrot Color, Canary Yellow) [Multiple Purchase Discount Available]

[On sale June 27th at 10 PM] Limited to 10 Stones: Sri Lankan Chrysoberyl (Cut by Mr. Sanje) Gacha (Includes Parrot Color, Canary Yellow) [Multiple Purchase Discount Available] Sale price¥3,980
[On Sale June 27, 10 PM JST] "Limited to 10 Stones" Rough Stone Gacha including Paraiba Tourmaline (CuO: 1.7%+ content) and Benitoite (with a bonus Oregon Sunstone) "Multiple Purchase Discount Available"

[On Sale June 27, 10 PM JST] "Limited to 10 Stones" Rough Stone Gacha including Paraiba Tourmaline (CuO: 1.7%+ content) and Benitoite (with a bonus Oregon Sunstone) "Multiple Purchase Discount Available" Sale price¥2,980
Limited to 6 stones: 1 loose pink spinel from Mahenge, Tanzania (round cut, 3.0mm) Discounts for multiple purchases

Limited to 6 stones: 1 loose pink spinel from Mahenge, Tanzania (round cut, 3.0mm) Discounts for multiple purchases Sale price¥4,980
【Available 10 PM on 6/7】《Limited to 10 Stones》Zircon Gacha including a rare Malawi bicolor zircon, usually priced at 29,800 yen 《Multiple Purchase Discount Available》

【Available 10 PM on 6/7】《Limited to 10 Stones》Zircon Gacha including a rare Malawi bicolor zircon, usually priced at 29,800 yen 《Multiple Purchase Discount Available》 Sale price¥4,980
[On sale June 8th, 10 PM JST] 《Limited to 4 stones》Needle-in-Blue Topaz Gacha💎Average 45ct《Multiple purchase discount available》

[On sale June 8th, 10 PM JST] 《Limited to 4 stones》Needle-in-Blue Topaz Gacha💎Average 45ct《Multiple purchase discount available》 Sale price¥9,800
[On sale May 22, 10 PM JST] "Limited to 11 Stones" Andalusite from Madagascar (cut by Mr. Sanje) Gacha - Average 0.40ct "Multiple Purchase Discount Available"

[On sale May 22, 10 PM JST] "Limited to 11 Stones" Andalusite from Madagascar (cut by Mr. Sanje) Gacha - Average 0.40ct "Multiple Purchase Discount Available" Sale price¥4,980
[Sale at 10 PM on May 6th] Limited to 9 stones: Untreated Bicolor or Sky Blue Topaz Single Stone Gacha (Brazilian) [Multiple Purchase Discount Available]

[Sale at 10 PM on May 6th] Limited to 9 stones: Untreated Bicolor or Sky Blue Topaz Single Stone Gacha (Brazilian) [Multiple Purchase Discount Available] Sale price¥6,980
[On Sale 5/6 10 PM] Limited to 10 Stones: Scapolite Gacha Featuring Koshu Kiseki Kiriko Plusthree "Akatsuki" (Normally ¥45,800) with a Chance to Win! [Multiple Purchase Discount Available]

[On Sale 5/6 10 PM] Limited to 10 Stones: Scapolite Gacha Featuring Koshu Kiseki Kiriko Plusthree "Akatsuki" (Normally ¥45,800) with a Chance to Win! [Multiple Purchase Discount Available] Sale price¥4,980
[On sale May 4th at 10 PM] "Limited to 11 Gems" Rouge Cut & Heart Shape Gemstone Gacha for ¥18,800! 💎 Almandine Garnet, Pink Tourmaline, Scolecite, Sapphire. "Multiple Purchase Discount Available"

[On sale May 4th at 10 PM] "Limited to 11 Gems" Rouge Cut & Heart Shape Gemstone Gacha for ¥18,800! 💎 Almandine Garnet, Pink Tourmaline, Scolecite, Sapphire. "Multiple Purchase Discount Available" Sale price¥4,980
[Limited Quantity Remaining] 《Limited to 12 Stones》Topaz Gacha (including Imperial Topaz) where you can win a Koshu Kiski Kiriko plusthree "Akatsuki" (usually 35,800 yen) 《Multiple Purchase Discount Available》

[Limited Quantity Remaining] 《Limited to 12 Stones》Topaz Gacha (including Imperial Topaz) where you can win a Koshu Kiski Kiriko plusthree "Akatsuki" (usually 35,800 yen) 《Multiple Purchase Discount Available》 Sale price¥4,980
[May 3, 10 PM JST Release] Dendritic Agate (Dendritic Quartz) Gacha - 1 Stone Loose Piece "Tucson New Arrivals / Limited 7 Stones" (Multi-Purchase Discount Available)

[May 3, 10 PM JST Release] Dendritic Agate (Dendritic Quartz) Gacha - 1 Stone Loose Piece "Tucson New Arrivals / Limited 7 Stones" (Multi-Purchase Discount Available) Sale price¥2,980
【Sale starts 4/ at 10 PM JST】《Limited to 15 pieces》Tucson Gem Gacha 💎 Benitoite, Italian Leucite, Pakistani Lazulite, etc. 《Multi-item discount available》

【Sale starts 4/ at 10 PM JST】《Limited to 15 pieces》Tucson Gem Gacha 💎 Benitoite, Italian Leucite, Pakistani Lazulite, etc. 《Multi-item discount available》 Sale price¥5,980
《Limited to 11 stones》Koshu Kiseki Kiriko plusthree Peridot (including lilypad) & Monsieur Saint-Jude cut peridot gacha《Multiple purchase discount available》

《Limited to 11 stones》Koshu Kiseki Kiriko plusthree Peridot (including lilypad) & Monsieur Saint-Jude cut peridot gacha《Multiple purchase discount available》 Sale price¥4,980
[Available at 10 PM on February 2nd] Limited to 10 stones! Takeshi Yamamoto Cut Gemstone Gacha! Fire Flower Cut Rock Crystal and More! Discounts Available for Multiple Purchases!

[Available at 10 PM on February 2nd] Limited to 10 stones! Takeshi Yamamoto Cut Gemstone Gacha! Fire Flower Cut Rock Crystal and More! Discounts Available for Multiple Purchases! Sale price¥7,980
《Limited to 21 Stones》Conch Pearl & Shell Gacha from the Dominican Republic, including Flame Pattern, 1 Stone Loose《Multi-purchase Discount Available》

《Limited to 21 Stones》Conch Pearl & Shell Gacha from the Dominican Republic, including Flame Pattern, 1 Stone Loose《Multi-purchase Discount Available》 Sale price¥3,980
Limited to 10 stones: Australian Opal Lottery with Certificate of Authenticity (including Australian Black Opal) (plus 1 Mexican Fire Opal) (Multiple purchase discounts available)

Limited to 10 stones: Australian Opal Lottery with Certificate of Authenticity (including Australian Black Opal) (plus 1 Mexican Fire Opal) (Multiple purchase discounts available) Sale price¥6,980
Limited Edition Tucson Lucky Dip Gems 💎 Guaranteed 1 stone from 8 types (Benitoite, Anthill Garnet, Dumortierite in Quartz, Eudialyte, etc.) 《Multi-purchase discount available》

Limited Edition Tucson Lucky Dip Gems 💎 Guaranteed 1 stone from 8 types (Benitoite, Anthill Garnet, Dumortierite in Quartz, Eudialyte, etc.) 《Multi-purchase discount available》 Sale price¥3,980
[On sale July 26th, 10 PM JST] Limited to 10 Stones! Diamond Gacha 💎 Win a diamond with a Central Japan Gem Lab sorting report (0.136ct/E/VVS-2/EXCELLENT/NONE (Hearts & Arrows))! Multiple Purchase Discount Available

[On sale July 26th, 10 PM JST] Limited to 10 Stones! Diamond Gacha 💎 Win a diamond with a Central Japan Gem Lab sorting report (0.136ct/E/VVS-2/EXCELLENT/NONE (Hearts & Arrows))! Multiple Purchase Discount Available Sale price¥3,980
Limited to 13 stones: Mexican Opal (Cabochon Cut) Gacha (Multiple purchase discounts available)

Limited to 13 stones: Mexican Opal (Cabochon Cut) Gacha (Multiple purchase discounts available) Sale price¥2,980
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
Limited Edition of 12 Diamonds: VS Equivalent Fluorescent Diamond Gacha with Bonus Mini Slice Diamond (Multiple Purchase Discounts Available)

Limited Edition of 12 Diamonds: VS Equivalent Fluorescent Diamond Gacha with Bonus Mini Slice Diamond (Multiple Purchase Discounts Available) Sale price¥6,980
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 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
{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
宝石ガチャ💎バゲットカットのトルマリン1石💎4×2mm《複数購入割引有》

Gem gacha💎1 baguette cut tourmaline stone💎4×2mm《Discount available for multiple purchases》 Sale price¥1,980
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 【8/13 22時販売】《限定13石》インド産アイオライトサンストーンガチャ1石（ロングヘキサゴナルカットやペンタゴナルカット）平均0.35ct《複数購入割引有》

【8/13 22時販売】《限定13石》インド産アイオライトサンストーンガチャ1石（ロングヘキサゴナルカットやペンタゴナルカット）平均0.35ct《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.