Rated K: Carlos Gayola's giant pearls

BFAR senior aquaculturist and pearl technician Daisy Ladra, NIGS-UP Diliman chemist Roxanne Samosa, and gemologist and jeweller Bensilli Blaise Badar explain the examination processes to verify the authenticity of the pearls. BFAR senior aquaculturist and pearl technician Daisy Ladra confirms that the giant pearls unearthed by Carlos Gayola in Baliangao, Misamis Occidental are real.
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