What is lady sovereign wearing?

Answer 1

If the questioner is inquiring about the chunky gold ring Lady Sovereign is known to wear often, it is a gold sovereign set in a ring.

The gold sovereign is a British gold bullion coin, containing 1/4 of a troy ounce of pure gold, though its weight is greater than this because it is cast in 22ct gold rather than 24ct. It is 22mm wide, which is about the same size as a U.S. or Canadian nickel. It has the profile portrait of the reigning monarch on its obverse, and (since 1817) an image of St. George slaying the dragon, designed by Benedetto Pistrucci, on the reverse. Occasionally the reverse depicts the shield of the monarch. Queen Victoria alternated between the two for much of her reign, one year bearing St. George, the next the shield.

Sovereigns are popularly worn mounted in rings or as pendants. Lady Sovereign is known for her sovereign ring, from which she also derived the name.