Many of the jewelled objects presented to The Prince contained gemstones backed with reflective foil to enhance the hue and depth of the jewel, which is typical of Indian jewellery of this period. These foiled gemstones were secured into a metal frame using strips of gold, usually ranging from 22 to 24 carats, which were skilfully worked around and between the framework surrounding each jewel. This method known as kundan, secures the jewel using pressure rather than heat. This method of gem setting is unique to the Indian subcontinent and is still practised today.