July 2026 Campaign Details
Tanabata Gemstone Gift Campaign in Progress 💎
Receive various gemstones, including rubies and sphenes (July's birthstones), depending on the total purchase amount over four days! 🎁
Campaign Period: Friday, July 3, 2026, 0:00 AM - Monday, July 6, 2026, 11:59 PM JST
――― How to Participate ―――
・Simply purchase any item(s) from the KARATZ STORE during the campaign period to automatically complete your entry. No special application is required.
・If you make multiple purchases during the campaign period, the gift tier will change based on your total purchase amount.
――― Important Notes ―――
・Regularly sold items, including books and gemstone encyclopedia 3D stickers, are eligible for the campaign.
・Collaboration items with anime or other works, and KARAFURU items are not eligible for the campaign.
・For other details and precautions, please check the bottom of this page.
Gift contents are as follows:
【Gift ①】
🎁All purchasers during the campaign period🎁
・Original Microfiber Cloth (Pigeon Blood Ruby pattern) x 1
Total: 1 piece
Can be used for cleaning jewelry and loose stones, as well as glasses and smartphone screens.
*Some gemstones are not suitable for cleaning with a cloth. Please refrain from using it on soft gemstones or those with surface treatments/coatings, or check the cleaning method beforehand. This cloth does not contain abrasives.
【Gift ②】
🎁Purchases of 3,000 JPY or more during the campaign period🎁
・Copal (including those with insects) x 1 *If not desired, please specify in the remarks column
・Square Ruby x 3 stones
Total: 4 stones
Receive three rubies, one of July's birthstones, a microfiber cloth for gemstone care, and copal. Some copal may contain insects, so please let us know in the remarks column if you prefer not to receive them.
【Gift ③】
🎁Purchases of 20,000 JPY or more🎁
・Ruby x 1 stone
・Sphene x 1 stone
・Mint Kyanite (Rose Cut) x 1 stone
・Rhodolite Garnet x 1 stone
・Rough Yellow Opal x 1 stone
Total: 5 stones
Along with rubies, sphenes are also a birthstone for July. They are characterized by dazzling fire, creating a brilliant impression reminiscent of summer sunshine.
【Gift ④】
🎁Purchases of 60,000 JPY or more🎁
・Ruby (Sanja Cut) x 1 stone
・Brown Diamond (Round Cut / VS-SI equivalent) x 1 stone
・Rhodolite Garnet (Milky Way Star Cut or Sweet Star Cut) x 1 stone
・Blue Topaz (Milky Way Star Cut) x 1 stone
・Synthetic Ruby (Verneuil method / approx. 4mm) x 1 stone
・Rough Spessartine Garnet from Nigeria x 1 stone
【Bonus】 ・1 in 2 chance: Rhodochrosite Slice from Argentina x 1 stone
Total: 6 or 7 stones
The rhodolite garnet and blue topaz feature a Milky Way Star Cut (or Sweet Star Cut) that enhances their sparkle. These cute cuts are perfect for the Tanabata season.
【Gift ⑤】
🎁Purchases of 120,000 JPY or more🎁
・Sphene (Sanja Cut) x 1 stone
・Brown Diamond (Fancy Shape) x 1 stone
・Cinnabar from China (mini size) x 1 stone
・Red Coral Branch & Loose Stone Set from Kochi Prefecture x 2 stones
・Rhodochrosite from Detroit City, USA x 1 stone
・Spessartine Garnet (including Mandarin color / Sanja Cut) x 1 stone
・Almandine Garnet (Sanja Cut) x 1 stone
【Bonus】
・1 in 2 chance: Rough Ruby x 1 stone
(Tanzanian or Guinean origin)
Total: 8 or 9 stones
Receive popular items from the KARATZ STORE, such as Chinese cinnabar and a beautiful red coral from off the coast of Kochi Prefecture, known for its luster and color. The rhodochrosite from Detroit City, USA, features a cabochon cut that enhances its charming color.
Top: Tanzanian origin
Bottom: Guinean origin
【Gift ⑥】
🎁Purchases of 200,000 JPY or more🎁
・Pigeon Blood Ruby with AIGS certification x 1 stone (including unheated / normally worth 50,000 JPY) OR Padparadscha Sapphire (with sorting report) x 1 stone
・YAG (with appraisal certificate) cut by Shimizu Kiseki-sama x 1 stone OR Sphene x 1 stone (each normally worth 50,000 JPY)
【Bonus】
・Limited to 3 customers: Green Quartz or Rose Quartz Pineapple Carving x 1 stone
Total: 2 or 3 stones
Receive special loose stones such as a Pigeon Blood Ruby with AIGS certification or a sphene cut by Shimizu Kiseki-sama. Additionally, three lucky customers will receive a unique pineapple-carved quartz, perfect for summer.
This concludes the lineup.Please refer to the photo below for sizes.
Please enjoy this opportunity.
💎Gift Content Summary💎
▶︎All purchasers
・Original Microfiber Cloth (Pigeon Blood Ruby pattern) x 1
*Limited quantity/If maximum quantity is reached, pattern will change.
▶︎3,000 JPY or more
・Copal (including those with insects) x 1
*If not desired, please specify in the remarks column.
・Square Ruby x 3 stones
Total: 4 stones
▶︎20,000 JPY or more
・Ruby x 1 stone
・Sphene x 1 stone
・Mint Kyanite (Rose Cut) x 1 stone
・Rhodolite Garnet x 1 stone
・Rough Yellow Opal x 1 stone
Total: 5 stones
▶︎60,000 JPY or more
・Ruby (Sanja Cut) x 1 stone
・Brown Diamond (Round Cut / VS-SI equivalent) x 1 stone
・Rhodolite Garnet (Milky Way Star Cut or Sweet Star Cut) x 1 stone
・Blue Topaz (Milky Way Star Cut) x 1 stone
・Synthetic Ruby (Verneuil method / approx. 4mm) x 1 stone
・Rough Spessartine Garnet from Nigeria x 1 stone
【Bonus】
・1 in 2 chance: Rhodochrosite Slice from Argentina x 1 stone
Total: 6 or 7 stones
▶︎120,000 JPY or more
・Sphene (Sanja Cut) x 1 stone
・Brown Diamond (Fancy Shape) x 1 stone
・Cinnabar from China (mini size) x 1 stone
・Red Coral Branch & Loose Stone Set from Kochi Prefecture x 2 stones
・Rhodochrosite from Detroit City, USA x 1 stone
・Spessartine Garnet (including Mandarin color / Sanja Cut) x 1 stone
・Almandine Garnet (Sanja Cut) x 1 stone
【Bonus】
・1 in 2 chance: Rough Ruby x 1 stone (Tanzanian or Guinean origin)
Total: 8 or 9 stones
▶︎200,000 JPY or more
・Pigeon Blood Ruby with AIGS certification x 1 stone (including unheated / normally worth 50,000 JPY) OR Padparadscha Sapphire (with sorting report) x 1 stone
・YAG (with appraisal certificate) cut by Shimizu Kiseki-sama x 1 stone OR Sphene x 1 stone (each normally worth 50,000 JPY)
【Bonus】
・Limited to 3 customers: Green Quartz or Rose Quartz Pineapple Carving x 1 stone
Total: 2 or 3 stones
■□■Important Notes■□■
・The campaign period is Friday, July 3, 2026, 0:00 AM - Monday, July 6, 2026, 11:59 PM JST.
・Shipment of items purchased during the above period will begin sequentially around Thursday, July 9th, but may be delayed more than usual. Please note that shipping is not available on weekends and holidays. We hope you look forward to your order.
・As a special measure, if you do not require copal, please indicate this in the remarks column when placing your order, and we will exclude it.
Please note that we generally do not accept individual requests regarding gift contents.
・Stones cannot be chosen as they are selected at random. We cannot accommodate requests, so please understand.
・The photos of the gift items are examples.
・The cut and color of the gift items may be subject to change without prior notice.
・Quality certificates are not included with gift items.
・Gift items undergo pick-up appraisal.
・Gift items will be shipped together with your 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.