As an "ugly duckling"
This may be the design closest to the image.
Since it is a small item, it is also recommended for collaboration with other items.

Product specifications

[Ring size] Free

[Motif] Approx. 15 x 12.4 x 12.2 mm (length x width x height)

[Material] K18 gold plated/epoxy resin

[Country of origin] Japan 🇯🇵