Lothar Vallot
Program Facilitator

Contact Info:
(714) 893-6643
ovdiamonds@aol.com
www.ovdiamonds.com

Courses Taught:
Introduction to Colored Stones
Advanced Colored Stones

A gemologist, goldsmith and diamond setter, Lothar Vallot has been in the jewelry business over 25 years. Recognized as an expert in the field, Lothar is the Program Facilitator for the SCC Gemology program. He received his Bachelor of Arts degree from Antioch College, Yellow Springs, Ohio.

Diana Sanders Cinamon

Contact Info:
(909) 883-6006
www.specialtyappraisals.com

Courses Taught:
Pearls
Antique and Period Jewelry

Diana Sanders is a gemologist and personal property appraiser of antiques, fine art and jewelry. Before joining the SCC staff to teach the Pearls class, Diana has taught antique and period jewelry classes since 1997. She is also the co-author of "How to be a Silver Detective" published by C. Jeanenne Bell.

Diana has a Bachelor of Science Degree in Business Administration from California State University, Long Beach and received her AA in Gemology from Santiago Canyon College in 2001.

Kathy Van Twist

Contact Info:
(714) 894-2191
(714) 251-1522
fkvantwist@surfside.net

Courses Taught:
Diamonds

Kathy Van Twist is the diamond grading instructor for the Gemology 020 Diamond Grading class. Her love of jewelry began 23 years ago with a part time job at a jewelry store while she was in college. She attended classes at the Gemological Institute of America and became a Graduate Gemologist.

She received her Bachelor of Science in Business Administration, and remained in the jewelry industry in numerous capacities. Kathy says, “I find the jewelry industry is a wonderful combination of beauty, art and science. There always seems to be something new and wonderful to keep me interested and still fascinated after all of these years.”