RAPAPORT... Revenue at US jewelry retailer Brilliant Earth beat the company’s expectations in the fourth quarter, reflecting success in attracting younger customers, it reported.Net sales rose 38% year on year to $121.9 million for the period, while net profit slipped 15% to $11.4 million, the company said last week. Full-year sales jumped 51% to $380.2 million, with profit up 22% at $26....