Boston Gem Lab
By Appointment Only:

101 Arch Street
Suite 800
Boston, MA 02110

BGL Brochure




Boston Gem Laboratory

Insurance ~ Estate ~ Casual Loss ~ Collateral ~ Comparison ~ Divorce ~ Damage

Appraisal Process:

  • Statement of metal type and testing
  • Net weights of metal (grams or penny weights)
  • Jewelry measurements
  • Manufacturing process (custom design, hand fabricated)
  • Jewelry finish
  • Condition of item
  • Trademark and hallmark
  • Description of setting (style and motif)
  • Grading of gemstones w/weights and measurements
  • Notation of treatments
  • Type of grading system used
  • Light analysis for diamonds
  • Cut analysis for diamonds and colored stones
  • Plotting for diamonds where applicable
  • Digital photographs
  • Period jewelry design and motif, circa date and provenance

"Jewelry is replaced by the description and not by the price on the appraisal."

List of Gemological Instruments

Sample Appraisals: Appraisal #1 ~ Appraisal #2 ~ Appraisal #3

Detail, Education, Protection