Complex sentence: Several pieces of jewellery from her tomb including a pair of pectorals and a unique crown or diadem were found here; they are today displayed in either the Metropolitan Museum of New York or the Cairo Museum in Egypt.
Split into simpler sentences: Several pieces of jewellery from her tomb including a pair of pectorals and a crown or diadem were found there. They are now displayed at the Metropolitan Museum of New York or the Cairo Museum in Egypt.