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Gem Gacha

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coming soon 《Limited 7 stones》Garnet (KEN Cut, approx. 4mm)《Multiple purchase discount available》
coming soon 【9/12  22時販売】《限定10石》通常32800円のトップカラーのベニトアイトやサンジェ氏ブルージルコン含むファイアが綺麗な宝石ガチャ《複数購入割引有》
Sold out Pink Diamond Loot Box💎 Fancy Orange Pink 0.188ct and other Fancy-colored pink diamonds (all stones sorted or certified) 《Multiple purchase discounts available》
Sold out {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}
Sold out 【9/7  22時販売】《限定12石》通常59,800円の鑑別書付きピジョンブラッドルビーやスタールビーを含むルビーガチャ《複数購入割引有》
Sold out Pink Diamond Loot Box💎 Fancy Orange Pink 0.188ct and other Fancy-colored pink diamonds (all stones sorted or certified) 《Multiple purchase discounts available》
Sold out Limited to 10 stones: London Blue Diamond Gacha Loose Stone (including 3.6mm, VS-SI grade equivalent, treated) [Multiple purchase discounts available]
Sold out 【9/4 22時販売】《限定13石》通常59,800円の14mmダンデライオンカットアメトリン・29,800円の甲州貴石切子シトリンの熟練職人ガチャ《複数購入割引有》
Sold out 《限定10石》通常49,800円の2.5ctブラジル産アクアマリン鑑付含む濃いめアクアマリンガチャ《複数購入割引有》
Sold out [8/ 10 PM Sale] Amethyst Gacha Featuring Dandelion Cut Gemstones by Shimizu Kisaki - 12 Limited Pieces Available! (Multiple Purchase Discount)
Sold out Limited to 10 stones: Madagascar pink sapphire (heart-shaped, including padparadscha color, approximately 3 x 2.3 mm) [Multiple purchase discounts available]
Sold out Limited to 10 stones: Madagascar pink sapphire (heart-shaped, including padparadscha color, approximately 3 x 2.3 mm) [Multiple purchase discounts available]
Sold out [On sale August 23rd at 10 PM] Limited 10 Stones! Amethyst Gacha featuring Koshu-Kiseki-Kiriko-plus-three "Akatsuki" (with one citrine cut by Mr. Sandje) [Multiple Purchase Discount Available]
Sold out Limited to 10 stones: Madagascar pink sapphire (heart-shaped, including padparadscha color, approximately 3 x 2.3 mm) [Multiple purchase discounts available]
Sold out 【8/23  22時販売】《限定12石》通常55,800円のパパラチアサファイア中宝鑑付含むベトナム産やビビッドなモザンビーク産などサファイアガチャ(さらにサンジェ氏サファイア1石)《複数購入割引有》
Sold out [On sale August 13th at 10 PM] Limited to 13 stones: 1 Indian Iolite Sunstone Gacha Stone (Long Hexagonal Cut or Pentagonal Cut) Average 0.35ct (Multiple purchase discount available)
Sold out [Sales begin August 16, 10 PM] Limited to 11 Stones: Alexandrite Gacha with Russian Alexandrite and Brazilian Silky Color (usually ¥69,800), includes 1 bonus Alexandrite. [Multiple purchase discount available]
Sold out [6/ 10 PM JST Release] 《Limited to 11 Stones》Bicolor Gemstone Gacha featuring Paraiba Tourmaline and Euclase 《Bulk Purchase Discount Available》
Sold out [Sales start 10 PM, Aug. 10] Andesine-Labradorite Gacha with a Chance to Win a Dandelion Cut Worth 69,800 JPY (Limited to 12 Stones) (Plus 1 Andesine-Labradorite Stone) [Bulk Purchase Discount Available]
Sold out [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)
Sold out [On sale 8/12, 10 PM] "Limited to 10 stones" Strong Fire Gem Gacha featuring 3mm Benitoite and Blue Zircon, normally 42,800 yen (multiple purchase discount available)
Sold out [On sale 8/14 at 10 PM] Limited to 10 Stones: Rhodolite Garnet Gacha with a chance to win a "Dandelion Cut 9mm" collaboration with Shimizu Kiseki, normally 35,800 yen (Multiple purchase discount available)
Sold out [On sale August 1 at 10 PM] Limited 10 Stones: Sapphire Gacha (including unheated cornflower blue sapphires, normally ¥69,800), with a bonus Sange sapphire. Multiple purchase discount available.
Sold out [On sale August 2nd at 10 PM JST] Limited to 15 stones: Peridot Gacha (August birthstone gacha) including a certificated parasitic peridot, normally ¥79,800. 1 stone with a free princess-cut peridot. Multiple purchase discount available.
Sold out 《Limited to 10 Stones》Jeremejevite Gacha with a Chance to Win Jeremejevite (Including with Certificate) Normally ¥39,800《Multiple Purchase Discount Available》
Sold out [On sale 7/22 at 10 PM] Limited to 10 Stones: Sapphire Gacha featuring a Certified Padparadscha Sapphire! (Multiple Purchase Discount Available)
Sold out [Limited to 16 Stones] Yellow Diamond Gacha including Sorting [Multiple Purchase Discount Available]
Sold out 《Limited to 10 stones》Color change gemstone gacha: color change zircon, alexandrite, color change garnet, etc. 《Multi-purchase discount available》
Sold out 《Limited to 9 Stones》Opal Gacha including Black Opal (plus one bonus Fire Opal) 《Bulk Purchase Discount Available》
Sold out 《Limited to 11 stones》Pink Sapphire Gacha including a "Sakura Cut" sapphire, normally 79,800 yen (plus one white sapphire) 《Multiple purchase discount available》
Sold out 《Limited to 14 stones》Windsor Sapphire Gacha 1 stone (bicolor, silky, color change, average 0.30ct) 《Multiple purchase discount available》
Sold out "Limited 16 Stones" Pink Diamond Fancy Color (with sorting) two stones included - Pink Diamond Gacha, normally 39,800 JPY (multiple purchase discount available)
Sold out 《Limited to 13 Stones》Unique Diamond Gacha - Includes 1ct+ Diamonds, Round Cuts, Rose Cuts, Fluorescent Diamonds (Bonus London Blue Diamond x 1) 《Multiple Purchase Discount Available》
Sold out 《Hong Kong Sourcing》Pakistan Blue Tint Axinite Gacha 1 Stone Loose《Multiple Purchase Discount Available》
Sold out [On Sale June 6th at 10 PM JST] "Limited 13 Stones" Fluorite Gacha including flawed Koshu cut gemstones "Bulk Purchase Discount Available"
Sold out [6/ 10 PM JST release] 《Limited 10 Stones》 Iolite Gacha featuring Koshu-Kiseki-Kiriko plusthree 《Bulk purchase discount available》
Sold out 《Limited to 10 Stones》Rough Gemstone Gacha featuring Paraiba Tourmaline (CuO: 1.7%+), Benitoite and more (includes 1 free Oregon Sunstone) 《Multiple Purchase Discount Available》
Sold out 《Limited to 10 stones》Madagascar Andesine-Labradorite (Rainbow Moonstone) Gacha Loose Stone (average 0.40ct)《Multiple Purchase Discount Available》
Sold out 《Limited to 5 stones》Cambodian Ratanakiri Blue Zircon Gacha (average 0.73ct)《Multiple Purchase Discount Available》
Sold out Sapphire Gacha where you can win a Padparadscha Sapphire with DGL certificate, normally ¥29,800! 💎 (Includes one white sapphire as a bonus)《Bulk purchase discount available》
Sold out 《Limited to 15 Stones》Ruby Gacha with 2 Pigeon Blood Rubies with Certificates (Synthetic Ruby as a Bonus)《Multiple Purchase Discount Available》
Sold out Sapphire Gacha where you can win a Cornflower Blue Sapphire with AIGS certificate 💎 Comes with a trillion sapphire as a bonus gift《Multiple purchase discount available》
Sold out 《Limited to 11 Stones》Ametrine Sakura-cut Koshu-kiseki-kiriko plusthree Gacha (usually 29,800 yen) including flower cuts (with a bonus mini-trine stone)《Multiple purchase discount available》
Sold out 《Limited to 12 Stones》Garnet Gacha including 8mm Dandelion-Cut Rhodolite Garnet (normally 39,800 yen) 《Multiple Purchase Discount Available》
Sold out 《Limited to 10 Stones》Flower-Cut Gem Gacha 💎 Usually 39,800 yen for Sakura-shaped and newly cut rubies (newly cut as a bonus) 《Bulk Purchase Discount Available》
Sold out Limited to 10 Stones: Zircon Gacha with Rare Bicolor Zircon from Malawi, Normally ¥29,800. Multiple Purchase Discount Available.
Sold out [Limited to 11 Stones] Madagascar Sapphire Gacha (including bicolor and silky colors, 3.5~5.4mm) [Multi-purchase discount available]
Sold out "Limited 17 Stones" Emerald Gacha 💎 Win Koshu Kiseki Kiriko, rose cut, or mint green emeralds that normally retail for ¥88,800. 《Bulk purchase discount available》

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.