“My job is to make sure that when someone reads something on our site, they can trust it — not because we say so, but because every claim reflects how pearl quality is actually evaluated in the industry.”
Lauren holds a GIA Pearl Certification from the Gemological Institute of America — the globally recognised authority in gemological education and standards. Her hands-on role at The Pearl Source spans pearl procurement, quality control, and customer education.
Pearl quality is assessed across five core value factors: luster, nacre thickness, surface quality, shape, and size. Of these, luster is typically evaluated first — it determines how light reflects off and through the pearl’s surface, and is the single most reliable indicator of overall quality. A pearl with exceptional luster can command significant value even where other factors are moderate. Nacre thickness underpins luster over time; thin nacre degrades, while thick nacre ensures a pearl remains beautiful for decades. Surface quality and shape are assessed alongside nacre, with round pearls and clean surfaces commanding a premium — though certain baroque shapes are valued for their individuality. Size is evaluated last, as it amplifies the impact of the other four factors rather than standing alone as a quality indicator.
All educational content on The Pearl Source and The Pearl Expert that makes technical claims about pearl quality, grading, pricing, or care is reviewed by Lauren before publication. Her review process checks for:
All reviewed content carries a standardised review attribution at the top of the page. Content is updated periodically to reflect evolving standards.
A selection of articles verified for accuracy by Lauren Greenberg:
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Content Writer and Editor at The PearlSource
Kate Muirhead is the editor and content writer for leading pearl retailer The Pearl Source. She believes in the power of signature jewelry, and that collecting it is half the fun.
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