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South Sea Pearl Grading Chart

South Sea Pearl Grade

Description

 
  • Finest South Sea pearl grade available.
  • Luster is extremely sharp, with crisp, distinguished reflected light sources.
  • No blemishing or inclusions may be seen.
  • Perfectly spherical pearls.
  • Nacre measures between 2.0-4.0mm thick.
  • Earrings set perfectly clean.
  • Necklace will be very clean upon close inspection.  
  • Nacre measures between 2.0-4.0mm thick.
  • Luster is sharp with good rate of reflection.
  • Reflected light sources have mostly crisp edges; satining or blurring may be observed. 
  • Blemish rate less than 10% on each pearl surface.
  • Earrings will set clean in front.
  • Strands will be mostly clean to the eye upon inspection.
  • Near-perfect matching; little to no variation in color, tone, luster, shape or size.
  • Nacre measures between 2.0-4.0mm thick.
  • Luster is mostly sharp with fair rate of reflection.
  • Facial features are typically not observed in pearl surfaces.
  • Reflected light sources have blurred edges.
  • Blemish rate less than 20% on each pearl surface.
  • One to two heavy blemishes allowable on 18-inch strand. 
  • Very good matching; little variation in color, tone, luster, shape or size.
  • Nacre measures between 2.0-4.0mm thick.
  • Luster is good to soft, with poor rate of reflection.
  • Facial features are typically not observed in pearl surfaces.
  • Reflected light sources have blurred edges.
  • Blemish rate less than 30% on each pearl surface.
  • One to two heavy blemishes allowable on 18-inch strand. 
  • Very good matching; little variation in color, tone, luster, shape or size.
  • Luster is fair to soft with low rate of reflection.
  • Reflected light sources are blurry. 
  • Facial features cannot be observed in pearl surfaces.
  • Blemish rate less than 40% on each pearl surface.
  • Some heavy blemishes may be observed throughout layout, however deep inclusions should not make up more than 10-15% 
  • Fair to good matching; some variation in color, tone, luster, shape or size.

 

'With Golden South Sea pearl grading, color plays an important role; the best rule of thumb to go by is the deeper the golden color, the rarer and more valuable the pearls are, all other quality factors being equal. 

Baroque or drop-shaped pearls are graded on the A-AAA scale as well; in addition to luster, color and surface quality, the symmetry of shapes and shape-matching play more important roles in determining the pearls' overall quality. 

White and Golden South Sea pearls are display completely natural color imparted by the gold and silver-lipped p. maxima oyster. PurePearls.com guarantees that no White or Golden South Sea pearl imported or sold by us has been color or luster-treated in any way whatsoever.

 

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