Theresa (Teri) Newman Brossmer is a professional independent jewelry appraiser and gemologist with over 25 years of experience in the jewelry and gemological industry.
The portable laboratory consists of a G.I.A. Maxi-lab and peripheral equipment which includes scales, digital photography equipment, G.I.A. graded Diamond master stones, laptop computer equipped with PAS Professional Appraisal Software and GIA Square Colored Stone Grading Software, etc.
The office laboratory includes all of the above with the addition of Photomicrography equipment, Ohaus MCT 500 carat scale, metal testing acids, ultrasonic and steam cleaning equipment, specialized lighting (Ott light, Ultraviolet box, Diamond Grading light), and a full reference library.
The reference library is a collection of over 25 years of industry publications that include inclusion photographs, auction catalogues and results, wholesale price guides from Rapaport and The Guide, as well as books on watches and vintage and antique jewelry.
AGA lectures attended annually cover the most recent technological advances in the detection of treatments to diamonds and gemstones, as well as their effect on value.
ASA classes attended annually are designed to assist the appraiser is preparing a document that is USPAP compliant and in keeping the ASA ethics and standards.
GIA lectures attended regularly have broached a wide variety of subjects from treatment identification and stability, diamond cut grades, to ethics challenges facing the industry.
Jewelry Camp and the West Coast Jewelry Studies programs are focused on identification and circa dating of antique and vintage jewelry. Recent advances in technology have allowed for the creation of excellent Fakes and/or “Married” pieces of jewelry being represented as original vintage and antique pieces.