Jewel made entirely by hand by the Italian craftsman Gianmarco Fontana. 
This ring made of 925 Silver depicting Tengu is part of the "Japanized" collection.

Tengu take on various forms, but are generally represented as bird-men, with a long prominent nose or even beak, with wings on the head and often red hair; the less powerful ones, karasu tengu (烏 天狗?), kotengu (小 天狗?) or konohatengu (木 の 葉 天狗?) are portrayed as more like birds. The face can be red, green or black, and their ears and hair are generally human; they have wings that beat rapidly like those of a hummingbird; wings and tail are feathered, and sometimes the whole body is. They can carry a Buddhist crosier with rings on top called a shakujo, which is used to fight or defend against dark magic.