"Green Decorative Plate with Lily Motif – Request for Identification and Evaluation"

Dear experts,

I would greatly appreciate your assistance in identifying and evaluating this decorative plate that has been in my possession for some time. The plate is green in color and weighs approximately 650 grams. It features a detailed floral and leaf design, which I believe may depict lilies. The surface is hard and can be scratched with a needle, leaving a permanent mark.

Here are a few additional observations:

The plate does not appear to be made of ordinary glass or ceramic.

It allows some light to pass through when illuminated.

No maker's marks or stamps are visible on the back.

I am curious to learn more about its possible origin, age, and material. Any insights or information you can provide regarding its background or potential value would be sincerely appreciated.

Thank you in advance for your time and expertise.