Designer: Judith Murat, Palm Beach, Fla.; (561) 366-4893; www.judithmurat.com Jewelry: The Deep Blue necklace is 18k gold and features a 90 ct. aquamarine pendant and diamond accents. Suggested retail prices start at $1,000. Inspiration: Tropical waters Designer: Stephen Kris, New York; (212) 242-1964; www.stephenkris.com Jewelry: Made of 18k yellow or gray gold, the Guitar ring features six ridges while the Bass ring has four. Retail prices start at $1,750 for the former and $1,800 for the latter. Inspiration: Musical instruments Designer: Swarovski North America, Cranston, R.I.; (401) 463-5132; www.swarovski.com Jewelry: A milky shade of mint alabaster joins the Swarovski crystal color palette this year. And, from the Cosmic series, is the Cosmic Baguette Sew-on Stone. The elongated crystals have irregular cuts that refract light differently than other shapes. Inspirati