About Dr. Ari Roark Expertise Metalsmithing, Goldsmithing,Jewelry Making, Gemology,Metallurgy,Art Jewelry,Jewelry Appraising,Metal Mill Work,Jewelry Education,Group Projects Adaptable to Special Populations as well as ordinary groups,Ethnobotany,Metal Clays, International Jewellery Law,Trade Law,Rock hounding,Industrial Health and Safety Assessment and Education as it pertains to Jewelry Studios (of all sizes and manufacturing concerns relative to the Trade, Jewellery Trade Organisations,Objective US Jewelry School critical Analysis,Applied Anthropology,goldssmithing,lapidary,metals,refining
Experience More than 35 years experience in the Jewelry Industry, Juris doctorates, PhD's in Anthropology, Cultural History, Cultural Geography, Mining Locations Assessments, Industrial Health and Safety Inspector to the Jewelry Industry, Montessori Educator, Occupational Therapy, Natural Historian, Scholar of Jewelry Evolution, PhD in Creativity ( the analysis of the divergent genres of thought on the process and impetus of the essence of creativity as a state of being expressed tangibly),Extensive Fieldwork with populations of Traditional craftsmen worldwide, former Peace Corps volunteer, Former VISTA volunteer, Etc.
Organizations too numerous to list
Publications prefer not to answer for reasons related to plagiarism
Education/Credentials PhD Anthropology( Applied(1), Cultural(2)Ethnobotany(1),PhD -Physics (Metallurgy 1)( Wave and Particle Dynamics 1),,JD,MD,MFA-Metals/Jewelry,,MFA-Printmaking, MFA-Sculpture, Extensive undergraduate degrees, extensive post doctoral work, Montessori Educator Certification (Primary and Secondary)..many, many Degrees, Grants, and Awards in my past as an Academic turned Jeweler, OSHA Certifications
Awards and Honors too numerous to list including 3 Honorary Doctorates, Two Humanitarian Related Awards, and Service on Many Boards of Directors
Question I have a pair of diamond earings stamped with only PPC, yet on the back/fastner its stamped 1/20 14K on one side and PPC on the other. Ive been told more than once they arnt real because they dont know what PPC is and theres no other stamp besides PPC on the stem.......Are my "PPC" earings real?
Answer hello Anamarie,
It seems you have real gold filled earring backs at least. The" PPC" is the manufacturers mark and the 1/20 14 kt. stands for 14/20 gold filled. It is likely that somewhere on the setting will be another GF or 12/20, 0r 14/20 mark .It is just hard to find without a loupe .
Those marks indicate that the gold is a layer of solid 14 karat gold bonded to a base metal.The 1/20 means it is 20 % pure 14 karat ( or near 57%) gold.Whomever told you that they aren't real does not know the intricacies of gold standards markings.
However if you were sold them and they were represented as solid gold earrings, I would consider a return.
Hope this helps!
Best Regards , Ari
