Gem Certification (GCAL) is launching three new services to spark sales opportunities for members. First, the company is offering one-on-one consultations with Marketing Manager Linda Osofsky, who will educate retailers on how in-store training, the Certified Diamond Exchange or specific marketing collateral can drive diamond-buying consumers into stores. She can be reached at (646) 871-4036 or losofsky@collectors.com.

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