With a Certified Gemologist Appraiser and a Master Valuer on staff, Mangan Jewelers can handle all of your appraisal needs. Appointments can be made to have your precious family heirlooms appraised while you wait. If you prefer, you may simply drop off the items for appraisal and return to pick them up later. Our expert appraisers have many years of experience in valuing both vintage and modern jewelry of all kinds. Both are graduate gemologists
from the Gemological Institute of America (GIA), and both have studied valuation science as well as gemology.
AGS Certified Appraiser
AGS Certified Gemologist
GIA Graduate Gemologists
As members of the American Gem Society (AGS), we must be recertified annually, and are held to the highest standards of ethics. The AGS seal of approval is your assurance of honesty and integrity.
We also have an AGS certified gem laboratory, fully equipped with two sets of master grading diamonds, binocular gem microscopes, refractometers, polariscopes, dichroscopes, a Beck spectroscope, ultraviolet lamps, and specially corrected lighting.