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Jonathan Tack Joins GSI as Executive Vice President of Business Development January 11, 2022 (0 comments)

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New York, NY--Gemological Science International (GSI), has tapped industry veteran Jonathan Tack as its new executive vice president of business development. 

Tack has over 25 years of experience in the luxury goods sector. Following a decade of service as vice president of sales for Suberi Brothers where he revamped the legacy brand and launched e-commerce, Tack then founded Proposition Love where he designed for celebrities such as Cher, Kathy Griffin, and Tori Spelling, and he appeared on the Chelsea Handler Show. Later, he led sales and marketing at Beauty Gem and SDC Designs. Tack has successfully guided cross-functional teams while launching products into new markets, developed business strategies for multi-channel sales, and fostered lucrative partnerships.

"I am thrilled to welcome Jonathan Tack to GSI," says Debbie Azar, president and co-founder of GSI. “Our team is made up of leaders from the diamond and jewelry industry, and I am confident that Jonathan’s enthusiasm, energy, and vast industry knowledge will help GSI achieve continued growth and success.”

"I am delighted to join such an esteemed and prestigious global organization,” says Tack. “The GSI team is building consumer trust and confidence in our industry through its integrity and innovation. I look forward to creating new opportunities that will be beneficial for GSI and for the entire diamond and fine jewelry industry.”

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