Only the finest gem grade green beryl is officially permitted to be called emerald. Although these stones are grade A, they're not considered to be gem grade.
One of the original four 'precious' gemstones, emerald is the green variety of the mineral beryl but not all green beryl is emerald. In the gemstone world richness of colour, saturation, tone and clarity must all reach a set standard for a stone to be officially classified as emerald. With that said, to prevent confusion in the wider commercial market, all green beryl tends to be known as emerald.
The very finest emeralds are highly sought after and prices can rival those of fine diamonds.
Emerald is one of the very few stones that's rarely found without inclusions or surface reaching fissures. These long narrow breakages are caused by splitting or cracking during the rock's formation.
In Ancient Rome emerald was associated with reproduction hence was dedicated to Venus Goddess of love, beauty, desire and sex. To the early Christians it represented the resurrection. Today when used as a healing crystal emerald is considered to be a stone of successful love which brings domestic bliss and instils sensitivity and loyalty within one's self as well as others. It has memory enhancing properties which includes the ability to increase memory capacity and combine intelligence and understanding enabling one to take the right action, choice or decision.
These grade A tumbled emerald (or green beryl) stones are a medium sized crystal. Weights and sizes do vary slightly from piece to piece.