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May 2026 Campaign Details

 

Receive gems like emeralds and jade, May's birthstones, depending on the total purchase amount over 5 days! 🎁

Campaign Period: May 2, 2026 (Sat) 0:00 - May 6, 2026 (Wed) 23:59

――― How to participate in the campaign ―――
・Simply purchase any product at Karatz STORE during the campaign period to automatically enter. No special application is required.
・If you make multiple purchases during the campaign period, the gift rank will change based on your total purchase amount.

――― Please note ―――
・Collaboration products with anime or other works, and 【Karats Colorful】 are not eligible for this campaign.
・For other details and precautions, please check the bottom of this page.

The gifts are as follows:

【Gift ①】
🎁 For all purchasers during the campaign period 🎁

・Original microfiber cloth (Colombian emerald pattern) x 1
*Limited quantity / Will change to a different pattern once the limit is reached.
・Special patch x 1
(Shimizu Kiseki cut or Koshu Kiseki Kiriko (including plusthree) pattern / design is random)
・Zambian Emerald x 1
・Citrine (Princess Cut) x 1
・Tanzanian Kornerupine x 1
When it comes to May birthstones, it's emerald. Zambian emeralds often have few inclusions and high transparency. They are also characterized by a uniform green color with a strong bluish tint. You can enjoy their clear, beautiful green.







【Gift ②】

🎁 For purchases of 20,000 yen or more 🎁
・Rhodolite Garnet (Sanje Cut) x 1
 ・Guatemalan Jade x 1
 ・Hokkaido Rhodonite x 1
 ・Yooperlite x 1
 ・Malachite x 1
【Bonus】
 ・Ring Image Holder x 1
 *Limited quantity / Ends once the limit is reached (color cannot be chosen)
Another May birthstone is jade. This jade is from Guatemala and is characterized by a deep green color. Yooperlite fluoresces a vibrant orange when exposed to black light.















【Gift ③】 

🎁 For purchases of 60,000 yen or more 🎁
・Colombian Inverse Trapiche Emerald x 1
 ・Zimbabwe Mint-Colored Fluorite x 1
 ・Mint Garnet x 1
 ・Green Tourmaline (Sanje Cut) x 1
 ・Yellow Golden Zircon (Sanje Cut) x 1
 ・Pyrite x 1
 ・Triplite Rough x 1
 
The 60,000 yen gift also includes a rare inverse trapiche emerald. A trapiche emerald is an emerald with six radial lines, and this is a rare type where the center is emerald. We have also collected gems that evoke the fresh greenery of May, such as mint garnet and green tourmaline.















【Gift ④】  
🎁 For purchases of 120,000 yen or more 🎁
・Colombian Trapiche Emerald x 1
 ・Jade x 1
 (Includes lavender color and those containing colored resin / those without resin impregnation come with a gem identification report)
 ・Diamond (with appraisal certificate) x 1
 ・Red Beryl (small, cabochon cut / includes those with a sorting report) x 1
 ・Yellow Calcite Rough x 1
 ・Emerald Cat's Eye or Emerald (Sanje Cut) x 1
The emerald cat's eye is carefully cabochon cut to enhance its brilliance, and we have selected those with good color. The diamonds come with a beautiful appraisal certificate.












【Gift ⑤】 
🎁 For purchases of 200,000 yen or more 🎁
・Emerald (Shimizu Kiseki Cut or Koshu Kiseki Kiriko) x 1
・Sapphire (Sakura In-cut) x 1
・Red Beryl (large) x 1
For purchases of 200,000 yen or more, you will receive loose stones cut by Shimizu Kiseki or rare red beryl. Each loose stone shines with its own unique beauty.




This concludes the lineup.
Please refer to the photo below for sizes.
Please enjoy this opportunity.

💎Gift Contents Summary💎

▶︎1 yen or more (All purchasers)
・Original Microfiber Cloth (Emerald pattern) x 1
・Special Patch (Random) x 1
・Emerald (Zambian) x 1
・Citrine (Princess Cut) x 1
・Kornerupine (Tanzanian) x 1

*Cloth is limited quantity

▶︎20,000 yen or more
・Rhodolite Garnet (Sanje Cut) x 1
・Jade (Guatemalan) x 1
・Hokkaido Rhodonite x 1
・Yooperlite x 1
・Malachite x 1

【Bonus】
・Ring Image Holder (Limited Quantity)

▶︎60,000 yen or more
・Colombian Inverse Trapiche Emerald x 1
・Mint Garnet x 1
・Green Tourmaline (Sanje Cut) x 1
・Yellow Golden Zircon (Sanje Cut) x 1
・Mint-Colored Fluorite x 1
・Pyrite x 1
・Triplite Rough x 1

▶︎120,000 yen or more
・Colombian Trapiche Emerald x 1
・Jade x 1
・Diamond (with appraisal certificate) x 1<
・Red Beryl (includes those with a sorting report) x 1
・Yellow Calcite Rough x 1
・Emerald Cat's Eye
 or Emerald (Sanje Cut) x 1

▶︎200,000 yen or more
・Emerald (Shimizu Kiseki Cut / Koshu Kiseki Kiriko) x 1
・Sapphire (Sakura In-cut) x 1
・Red Beryl (large) x 1

📅Campaign Period
May 2, 2026 (Sat) 0:00 - May 6, 2026 (Wed) 23:59

■□■Notes■□■

・The campaign period is from May 2, 2026 (Sat) 0:00 to May 6, 2026 (Wed) 23:59.

・Shipments for items purchased during the above period will begin sequentially around May 11 (Mon), but there may be delays compared to normal shipping times. Please also note that shipping is closed on weekends and holidays. Thank you for your understanding and patience.


・Stones cannot be chosen as they are randomly selected. Please note that requests cannot be accommodated.
・The photos of the gift items are examples.
・The cut and color of the gift items may change without notice.
・Quality guarantee certificates are not included with gift items.
・Gift items undergo pick-up identification.
・Gift items will be shipped together with purchased items.(Pre-order items, custom-made jewelry, etc., will be shipped separately.)
・If a set discount or coupon discount is used, the total amount will be the amount after the discount.