There are 5 factors to look for when choosing your pearls: lustre, colour, shape, purity and size.
The pearl shapes are referred to as round, semi-round, semi-baroque (slightly irregular) and baroque (irregular). In general, the more spherical the pearl, the higher the value.
Pearls are available in a variety of colours and tones ranging through pink, white, cream-pink, cream-gold, grey and black. The colour of the final product is determined by nature without the influence of man. Choose the one that complements your skin tone. Generally whites and pinks suit paler complexions whilst creams and cream-pinks the darker complexions.
This term refers to the absence of blemishes and marks on the surface of the pearls using the naked eye.
Pearls are available in a variety of sizes from 3-10mm.
Lustre is what gives pearls their beauty and shimmering iridescence. This is the bright yet deep-seated sheen on the surface created through the reflections and refractions of millions of microscopic layers of nacre. In general the thicker the coating the better the lustre.