If you can dream it, we can create it! Even if you have no clue as to how to create a custom design, our talented staff can guide you to the perfect design. This custom bolo tie is made in sterling silver, with twist wire accents. The center showpiece is a boulder opal from Australia, Custom accented bolo tips also have the boulder opal beads. This one is spoken for, but we have boulder opal pieces just waiting for your ideas. Each bolo is approximately $ 750.00.