The most prized is pure grass green. A flawless, clear emerald is very rare and is usually found in only small sizes. According to legend, wearing an emerald cured illnesses such as low I.Q., poor eyesight and infertility. It also enabled the wearer to predict the future. June s birthstone is the pearl, a gem produced inside the living tissue of the oyster.
Natural pearls are very rare.
Most are cultivated in large oyster farms where a small seed is placed in the oyster and allowed to become coated with nacre. Pearls come in a wide range of colors. They should be relatively free from skin blemishes. The more perfectly round the shape the better. The larger the pearl, the greater the value.