Pearls have their own grading system and these include:

Orient - deep inner glow and shimmering iridescence of the pearls surface

Size - Size grown in oyster

Shape - round, pear, tear and oval shape the more symmetrical the more valuable.

Surface perfection - blemishes are apart of a pearls authenticity, less blemishes the more valuable.

Rarity - matching orient, shape, size and colour is a very precise exercise.

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