Without Soraya Cayen, Victor Velyan might still be focused solely on making pieces for other designers—instead of for his own acclaimed fine jewelry collection.  Cayen, owner of Cayen Collection in Carmel, Calif., was the contemporary who persuaded Velyan to make the leap from manufacturer—he was crafting collections for a bevy of brands—to full-fledged designer. And after succeeding in talking him into it, she introduced his first-ever collection in her boutique in 2008. “I saw how intensely he participated with his clients, and I just kept bugging him to do it,” Cayen recalls.  The friends have worked together closely ever since, creating a tight partnership that’s been financially fruitful for both parties. “The relationship is more than important to me,” Velyan says. “It’s actually precious to me.”  With the jewelry market flooded with hi