Carved into the flat back of the glass so that, seen through the high-domed cabochon front, the frosted white design appears to float in three dimensions — the classic "pool of light" effect.

Measures approximately 1 inch in diameter. Set in a gold-tone metal bezel with a fixed eyelet and jump-ring bail, ready to wear on a chain or attach to a watch chain. The style dates to the late 19th / early 20th century (c. 1890–1920).

Condition: very good antique condition. The intaglio carving is crisp and detailed; no chips or cracks to the glass. Light surface flea bites and faint scratches consistent with age, and a little dust trapped behind the bezel on the reverse — typical of antique pieces. No hallmarks on the mounting.

Please see photos, which form part of the description.