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Gem Gacha

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Sold out [On sale July 19 at 10 PM JST] Pink Sapphire Gacha including "Sakura Incut" Sapphire (usually 79,800 JPY) + 1 White Sapphire (Limited to 11 Stones) (Multi-purchase discount available)
Sold out [On sale July 19th, 10 PM JST] 《Only 1 stone left》Paraiba Tourmaline Gacha with a chance to win a Brazilian Paraiba Tourmaline (CuO: 1.4%, MnO: 1.7%) with a sorting report, normally 69,800 yen. One loose stone. 《Bulk purchase discount available》
Sold out [On Sale July 18th, 10 PM] Garnet Gacha: Win a Russian Horsetail Inclusion Demantoid Garnet, normally priced at 59,800 yen! 《Limited to 11 Stones》 《Quantity Discounts Available》
Sold out 【7/17 22時販売】《限定13石》通常25,800円のブラジル・バターリャ産パライバトルマリン(CuO:1.7%.MnO:1.9%)やユークレースなどブルーの宝石が当たるガチャ(おまけでハートシェイプ1石)《複数購入割引有》
Sold out [Sale on July 20 at 10 PM] Limited to 10 stones: Rare Stone Gacha 💎 Win Brazilian Paraiba Tourmaline, Colombian Euclase, and more, normally priced at ¥58,800 (plus one Ole Sand stone). Multiple purchase discount available.
Sold out [Sale starts July 11th, 10 PM JST] Limited to 16 Stones! Pink Diamond Gacha with 2 FANCY Color Pink Diamonds (with sorting certificate), normally ¥39,800. Multiple Purchase Discount Available.
Sold out [On sale July 5th, 10 PM JST] 《Limited 13 Stones》Unique Diamond Gacha - Including 1ct+ diamonds, round cut, rose cut, and fluorescent diamonds (with a bonus London Blue Diamond stone!) 《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 to 11 Stones》Bicolor Gemstone Gacha featuring Paraiba Tourmaline and Euclase 《Bulk Purchase Discount Available》
Sold out 【Sale starts June 19th, 10 PM】《Limited to 10 stones》Madagascar Andesine-Labradorite (Rainbow Moonstone) Gacha, 1 Loose Stone (Avg. 0.40ct)《Multiple Purchase Discount Available》
Sold out [On sale June 20 at 10 PM] Limited to 5 Stones: Cambodian Ratanakiri Blue Zircon Gacha (Avg. 0.73ct) (Bulk Purchase Discount Available)
Sold out [On sale June 20, 10 PM JST] Sapphire Gacha💎 where you can win a Padparadscha Sapphire with DGL certificate, normally priced at ¥29,800 (comes with one white sapphire as a bonus) 《Multi-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 [Sale on 6/13 at 10 PM] Limited to 11 stones! Ametrine Sakura-cut Koshu-Kiseki-Kiriko plusthree Gacha (including flower cuts, usually priced at 29,800 yen), with a bonus mini ametrine stone. Multiple purchase discount 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"
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》
Sold out [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)
Sold out 【5/23 22時販売】《限定11石》カービングガチャ💎通常29,800円のイチゴカット43ctのブルートパーズ・フラワーカットのアメジスト・プルメリアカットなど(おまけで特殊カットブルートパーズ8-10mm)《複数購入割引有》 
Sold out 《Limited to 9 Stones》Specialty Cut Gacha💎Koshu Kiseki Kiriko plusthree "Subaru: Ametrine" (normally 39,800 yen) and works by Takeshi Yamamoto, etc. (plus one citrine by Mr. Sanje as a bonus)《Multiple Purchase Discount Available》
Sold out [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》
Sold out [Sales begin June 12 at 10 PM JST] Blue Gem Gacha 💎 Featuring Brazilian Paraiba Tourmaline (CuO: 1.5%, MnO: 3.2%) normally priced at 35,800 JPY, Zimbabwean Euclase, and more! 《Bulk purchase discounts available》
Sold out [Sales start May 15, 10 PM] Limited to 11 Stones: Aquamarine Gacha with Certified Santa Maria Aquamarine (Multiple Purchase Discount Available)
Sold out [On sale May 16th at 10 PM JST] 《Limited 20 stones》Big Gem Gacha 💎 Win a 19ct up Shimizu Kisaki Co. Camellia cut gem 《Multiple purchase discount available》
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)
Sold out [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]
Sold out 【Sales start 10 PM, May 17th】《Limited 12 Gems》Win a Shimizu Kiseki Sakura In-cut Diamond! 💎 Tourmaline Gacha (plus a bonus Sanje Tourmaline)《Multiple Purchase Discount Available》
Sold out Bicolor Gacha including Brazilian parti-colored Paraiba tourmaline (CuO: 1.7%, MnO: 2.9%), bicolor sapphire, bicolor tourmaline, and specially cut bicolor fluorite, normally 79,800 JPY (multiple purchase discount available)
Sold out [On sale May 3rd at 10 PM] Limited to 9 stones! Color-shifting amethyst gacha, including a 3.49ct konpeito cut by Makoto Nakano (normally 22,800 yen) and a Sanje-cut stone. (Multiple purchase discount available)
Sold out [Sales Start: May 5th, 10 PM JST] Limited 12 Stones - Alexandrite Gacha with Alexandrites from Different Origins, including Russian Alexandrite (normally 69,800 JPY), plus a bonus Sri Lankan Chrysoberyl crystal. Multiple purchase discount available.
Sold out [On sale May 3rd, 10 PM JST] Garnet Gacha (Round Cut, 2.5mm) Cut by American lapidary artist KEN 《Bulk purchase discount available》
Sold out [On Sale 5/30 at 10 PM] "Limited 9 Stones" Blue Gem Gacha 💎 Brazilian Paraiba Tourmaline (CuO: 2.2%, MnO: 3.5%), Top Color Benitoite, Hauyne, Apatite (Multi-purchase discount available)
Sold out 《Limited to 10 Gems》DGL certified, pink sapphire gacha including a 0.155ct Padparadscha sapphire, plus a bonus sapphire such as a trillion cut! 《Multi-purchase discount available》
Sold out 《Limited to 12 Stones》Rare Stone Gacha 💎 Cinnabar from China, Paraiba Tourmaline from Mozambique, Grandidierite, etc.《Multiple Purchase Discount Available》
Sold out 《Limited to 10 Gems》Koshu Kiseki Kiriko plusthree "Akatsuki" Ametrine Gem Gacha《Bulk Purchase Discount Available》
Sold out Jeremejevite Gacha with a 0.22ct Loose Stone Worth 55,800 JPY [Limited to 10 Stones] [Multiple Purchase Discount Available]
Sold out 《Limited to 21 Stones》Russian Demantoid Garnet Gacha with Beautiful Horsetail Inclusions, usually ¥69,800《Multiple Purchase Discount Available》
Sold out 《Limited to 12 Stones》Iolite Gacha including Konpeito-cut Golden Iolite, normally 27,800 yen (with a bonus cut by Mr. Sanje)《Multiple Purchase Discount Available》
Sold out 《Limited to 15 Stones》Fluorite Gacha including 2 Koshu-Kiseki-Kiriko stones (normally 49,800 yen) with 1 CC fluorite stone as a bonus《Multiple Purchase Discount Available》
Sold out 《Limited to 15 Stones》Cordierite-Inclusive Cordierite Spinel Gacha, Equivalent to 59,800 Yen 《Bulk Purchase Discount Available》
Sold out Big Gem Gacha 💎 including Dandelion Cut 15mm and Camellia Cut 19mm, normally 55,800 JPY《Multiple Purchase Discount Available》
Sold out Limited 5 Stones: Synthetic Alexandrite Gacha (Princess Cut, 3.5-4.5mm) (Multi-Buy Discount Available)
Sold out Brazilian Paraiba Tourmaline (Batalha Mine) Gacha 💎 Usually ¥45,800 With sorting, includes unheated. 《Multiple purchase discount available》
Sold out 《Limited to 20 stones》Demantoid Garnet Gacha, including Russian demantoid garnets, normally priced at 69,800 yen 《Multiple purchase discount available》
Sold out 《Limited to 20 Stones》Emerald Gacha: Win a 2.2ct Columbia Emerald Koshu-Kiseki Cut (normally 79,800 yen) or an Emerald Cat's Eye! 《Multiple Purchase Discount Available》
Sold out 《Limited to 13 stones》Synthetic Gacha (with additional synthetic alexandrite) including D/IF/3EX lab-grown diamonds normally priced at 39,800 yen and Sakura-cut YAGs normally priced at 59,800 yen. 《Multiple purchase discount available》
Sold out Limited to 9 stones: Padparadscha Sapphire Gacha (plus a princess-cut sapphire) (Multiple purchase discounts available)
Sold out 《Limited to 15 stones》Topaz Gacha with Koshu Kiseki Kiriko 10ct (normally 69,800 yen) and sherry-colored Imperial Topaz included 《Multiple 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.