Foil backing (or foiling) is a gemstone surface enhancement technique where a thin sheet of metal is placed behind the gemstone in order to reflect more light, and/or color, back into the stone and then towards the viewer.

A gorgeous glowing violet, pink, lavender, and orchid tone amethyst, this stunning example is foiled and set during the Archaeological Revival period, with a beaded bezel, set entirely in 15k. 

Materials and Features: foiled amethyst, 15k gold 

Age/Origin: Victorian, c. 1870

Measurements: Size 7, 4.3 grams

Marks: Hallmarked "15k" (later addition to the face)

Condition: Excellent condition. Minor associated age wear. 

Please view and inspect any photos closely. We endeavor to fully disclose all condition information clearly and concisely, however, please note that what qualifies as excellent condition for historical jewelry differs from modern and contemporary pieces; please take the age of the piece into account when examining the piece. Minor age wear is typical and to be expected for antique and vintage jewelry. Unless otherwise stated, gemstones have not been officially graded for color, clarity, or treatment by GIA; any information provided is our own educated, professional assessment.