The Duchess of Cambridge wore a short camel-colored coat that covered her baby bump
Credit: Indigo/Getty

Loud cheers greeted the surprise appearance of the Duke and and Duchess of Cambridge at the races Friday.

Pregnant Kate, 31, sported a short camel-colored coat that covered her baby bump. She also wore her faithful Aquatalia brown suede boots and one of her favorite winter hats – the Lock and Co Betty Boop, which she donned to the close friend Mark Tomlinson’s recent wedding in Switzerland.

As for her earrings, they were designed by Kiki McDonough, a favorite jeweler of hers. They are cushion-cut citrine diamond earrings from the jeweler’s classic range, Eternal, and they retail for £1,200 (or approximately $1,800).

Kate wore diamond earrings from the designer on her first Christmas Day as a married woman in December 2011.

Kate and William, 30, arrived just before lunch at the prestigious Cheltenham Festival, about 120 miles west of London. At the races, a horse owned in part by Mike Tindall, the rugby-playing husband of William’s cousin Zara Phillips, is taking part.

The couple’s arrival was heralded by enthusiasm from excited racegoers when they emerged from their car in the rain. Also in attendance: Zara Philliip’s mum, Princess Anne.

Her visit came as it was announced that scouting volunteer Kate will attend a training event in the north west of England next week.