Deborah Besemer has been appointed new chief executive officer of Paragon Lake, the Lexington, Mass.-based “virtual marketplace” for made-to-order fine jewelry.

Matt Lauzon, Paragon Lake’s founder and member of the board, will become the company’s chief operating officer.

Besemer was most recently the president and CEO of BrassRing, a leading provider of talent management solutions. Under her leadership, revenues grew consistently, from $1 million in revenue to $40 million until she oversaw the sale of the company to Kenexa Corp. for $115 million. Prior to joining BrassRing, Deborah was president of Systemsoft Corporation and spent more than a decade at Lotus Development, where she managed worldwide field operations with revenues in excess of $1.3 billion and more than 4,000 employees in 46 countries.

JCK