When Laurence Bruyninckx entered a jewelry design contest organized by the Flanders Fashion Institute within the Royal Academy of Fine Arts in Antwerp, Belgium, she had a fashion design degree and nothing to lose. Winning garnered her an entrée into fine jewelry, complete with a contract with IGC Brand Services for her own eponymous collection, which is debuting at JCK Las Vegas in the IGC booth in the Prestige pavilion.Her stackable, add-on-friendly designs comprise 51 different semi-mount styles and 22 unique nesting bands—the latter boast tiny pear, baguette, round, or marquise-cut diamo