Necklaces with an emerald are an amazing present for a marriage anniversary, for a birthday or just for a present. These necklaces are made of 750 gold with diamonds and emeralds set. The emerald, with the aquamarine, belongs to beryllium breed of which exist several varieties of different colors. Emerald is the finest variety. Only the best qualities of emerald are transparent. The mainly used cut is the one called emerald-cut: it is a rectangular multifaceted shaped with rounded off corners and even flat facets. Other all shapes are used.