Blemishes

Line

Blemishes are on the surface and are judged by the unaided eyes. Bumps, pits and lines are most commonly found. Consider the size, number and location of these types of blemishes.
  • Unblemished: Pearls are blemish free to the unaided eye.
  • Very slightly blemished: Pearl has very minor bumps or pits, difficult at first to detect with an unaided eye.
  • Slightly blemished: Minor blemishes covering just small areas of the surface of the pearl. Detectable with the unaided eye.
  • Blemished: Pearls have visible blemishes, bumps or pits, which are significant and cover at least to of the surface of the pearl.
  • Very blemished: Bumps and pits are profound, and covers over the surface of the pearl.

Akoya Blemishes Chart

Blemish Chart

Blemishes Grade
Unblemished 10
Very Slightly Blemished 7-9
Slightly Blemished 4-6
Blemished 2-3
Very Blemished 1

Evaluating Factors

Overtone Color
Body Color
Shape
Size
Lustre
Nacre Thickness
Blemishes
Matching
Final Grade
Worksheet
Pricing
Pile of Pearls

Line

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