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Gem Gacha

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coming soon {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}
coming soon 【6/19  22時販売】《限定10石》マダガスカル産アンデシン・ラブラドライト(レインボームーンストーン)ガチャ1石ルース(平均0.40ct)《複数購入割引有》
coming soon 【6/20 22時販売】《限定5石》カンボジア産ラタナキリブルージルコンガチャ(平均0.73ct)《複数購入割引有》
coming soon [On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"
coming soon [June. Sales at 10 PM JST] 《Limited to 10 Stones》Sapphire Gacha Featuring Padparadscha Sapphires with DGL Certificates 💎《Multiple Purchase Discount Available》
coming soon 【6/  10 PM JST】Limited to 15 Stones: Pigeon Blood Ruby Gacha – Includes AIGS certified stones 💎 Comes with a synthetic ruby bonus! Multiple purchase discount available.
coming soon [Available 6/XX at 10 PM] Limited 12 Stones: Cornflower Blue Sapphire Gacha 💎 Comes with a Trillion Cut Sapphire Bonus! (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 《Limited to 11 stones》Blue Diamond (treated) Gacha including an ice-blue diamond usually priced at ¥35,800 (plus 1 taper-cut stone) 《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.