16" Interlok Harmony Two Tone Petite Necklace Amber Marie and Company Interlok Harmony Luxe Petite Necklace Interlok Harmony Black Ring Brighton Interlok Luxe Necklace Brighton. Drawing inspiration from the timeless Hercules knot, which is a symbol of strength and unity, this elegant petite necklace features a beautiful interplay of pav detailing that artfully defines the iconic knot design. Exquisite craftsmanship and delicate, intricate construction gives it the look of fine jewelry.