The thicker and more perfect the nacre/surface the higher the lustre.
The cleaner the surface the higher the quality.
Rounder pearls are more precious.
Pearls come in several natural shades. White-silver with slight rose overtone is the highest quality.
As with gemstones; the larger the pearl, the higher the value.
Types of Pearls
Pearls are one of the oldest gems on earth and need no cutting. They are organic gems created when an oyster covers an irritant/nucleus in the oyster with beautiful concentric layers of nacre. Cultured pearls are natural in the process of formation.
They are the classic cultured pearls of Japan formed by the Akoya oyster ranging in size from about 2mm to 10.5mm. Their colours range from silvery white and cream to gold with overtones of rose and blue/green.
South Sea Pearls
Large pearls cultivated by the white-lipped oyster and are found in the warmer waters along the coasts of the South Seas. Colours are typically white, silver and gold with sizes from 9mm to as large as 20mm.
Large pearls cultivated by the black- lipped oyster and range from 9mm to over 16mm. Tahitian pearls range from natural dark colours to black with overtones of peacock and green.
Freshwater Pearls are cultivated in mussels in freshwater lakes and rivers. The interesting shapes and sizes vary and colours range from white to the natural pinks, apricots and mauves.