U-Treasure has released the Pokémon Sylveon Shell Necklace and Pokémon Sylveon Shell Ring jewelry on Tuesday, December 9th, 2025 in Japan. Images of the items have been added to an Imageboard thread.

Pokémon Sylveon Shell Necklace, Silver (Pink Gold Coating)

A necklace featuring the knotted Pokémon Sylveon. The material is silver with a pink gold coating, representing the healing power of Nymphia. Based on mother-of-pearl (white butterfly shell), which sparkles differently depending on the viewing angle, Pink tourmaline gently nestles next to it.

This is jewelry that gently connects the wearer with their precious days. It's also great to wear it together with the "Nymphia Shell Ring," which will be released at the same time, for a coordinated look.

Price: 28,600 yen (tax included)
Product Number: PO0200415300
Specifications of the main body: Material: Silver 925 (pink gold coating), mother of pearl (white butterfly shell)
Total length of chain: 45cm (red bean, approximately 1mm wide, with adjuster ring/adjustable to 40cm)
Motif part: length approx. 17.45mm (including bail), width approx. 11.3mm, thickness approx. 3.2mm Mother-of-pearl (white butterfly shell): length approx. 12.35mm, width approx. 9.65mm, thickness approx. 1.0mm
Pink tourmaline: 3mm diameter x 1 piece

Pokémon Sylveon Shell Ring Silver (Pink Gold Coating)

A ring with a design of the knotted Pokémon, Sylveon.The silver is coated with pink gold to represent the healing power of Nymphia. The mother-of-pearl (white butterfly shell) used as the base sparkles differently depending on the angle from which you view it.

This is jewelry that gently connects the wearer with their precious days. It's also nice to wear it together with the "Nymphia Shell Necklace" which will be released at the same time and enjoy coordinating it.

Price: 22,000 yen (tax included)
Product Number: PO0100705300
Specifications of the main body Material: Silver 925 (pink gold coating), mother of pearl (white butterfly shell)
Arm width: Approximately 1.6mm to 14mm
Arm thickness: Approximately 1.5mm to 3.3mm
Mother-of-pearl (white butterfly shell): length approx. 12.35mm, width approx. 9.65mm, thickness approx. 1.0mm

Sources: https://www.pokemon.co.jp/goods/2025/12/251212_go02.html, https://u-treasure.jp/product/PO0200415300 and https://u-treasure.jp/product/PO0100705300