[Commemorating their appearance on Ame Talk! | Limited to 4 days | Sales end on Sunday, July 5th] Adult Cest Bon Star Vol. 1 Ring Silver Model (SV925)

🎉 In commemoration of "Otona no Sebonstar" being featured on Ame Talk!, we will be selling the popular first series of Otona no Sebonstar for a limited period of 4 days.

Sebonstar and gem specialty store KARATZ have collaborated to create authentic jewelry using gemstones.


See all Otona no Sebonstar products here

Sales period: July 2, 2026 (Thu) 22:00 - July 5, 2026 (Sun) 23:59
*Sales may end or be suspended once the available quantity is reached.
Expected delivery date: Around late October 2026. This may vary.

【Commitment to collaboration jewelry】

We meticulously selected and purchased gemstones from India and Sri Lanka, and after much trial and error, we reproduced the Sebonstar cut. Furthermore, we designed the jewelry in close consultation with skilled Japanese craftsmen to express the "excitement" that Sebonstar embodies, ensuring that we deliver jewelry worthy of a memorial year.

【Design】

Inspired by the Sebonstar logo, the design features a classic heart motif combined with a ribbon, appealing to a maiden's heart. The intricately cut heart-shaped gemstone is accentuated by brilliant diamonds. The ring's arm, with its classical curved beauty, elegantly adorns the hand, creating a ring meticulously crafted down to the smallest detail.

 【Used Gemstones】
Heart-cut gemstones (approx. 5mm x 5mm)

1. Almandine Garnet
2. Peridot
3. Amethyst
4. Citrine
5. Blue Topaz

Side stones (approx. 1.5mm x 1 stone, approx. 1mm x 2 stones)

Diamonds (VS class equivalent D-G color, H&C)

【Product Specs】

【Purchase Benefits】

・Special Cestbon Jewelry Case

Color: Blue
Size: Approx. 13cm x 4.5cm

・Special Certificate Card

・Special Shopper

Please see the special page for details on the benefits.

【Notes】
■Regarding the estimated shipping date
・Delivery times are approximate.
・Delivery times may vary due to manufacturing circumstances.

■Regarding payment methods
The following payment methods are available at KARATZ STORE:
Credit card / Convenience store payment / Bank transfer / Apple PAY / Google Pay / PayPay / d払い payment / Merpay / Deferred payment (Paidy) / Alipay / AlipayHK / WeChat Pay

■Regarding silver model resizing
Silver models cannot be resized.

■Regarding silver model materials
・Silver is a material that is easily scratched, so there may be minor scratches on the surface.
・Due to the manufacturing process, there may be minor scratches or unevenness, but this is not a defect.

■Regarding precious model resizing
Precious models can be resized for a fee.
If you wish to have your item resized again after it has arrived, please contact us. Please include your name and order number for a smoother process.

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