Get a shot of something blue with a sparkling piece of jewelry that's seaworthy and wedding-worthy. 1. Pendant necklace, by Danielle Welmond, from Twist, twistonline.com. 2. Beaded necklace with freshwater pearls, Rina Limor, rinalimor.com. 3. Quartz and chalcedony necklace, Suzanne Kalan, suzannekalan.com. 4. "Cleo" hoops, Rachel Leigh, rachelleigh.com. 5. Topaz and gold necklace, by TenThousandThings, from Ylang 23, ylang 23.com. 6 & 7. "Snowman" topaz earrings, and gold and topaz bangles, Ippolita, 877-865-5500. 8. Aquamarine chunk necklace, by Gabrielle Sanchez, from ABC Carpet & Home, 212-473-3000. 9. Brazilian agate bib necklace, Jennifer Rose, jenniferrosejewelry.com. 10. Bracelet with smooth fluorite, Becky Kelso, beckykelso.com. 11. Peruvian Amazonite earrings with diamonds, by Jamie Joseph, from Ylang23, ylang23.com. 12. "Stellar Mix" earrings, by Dana Kellin, from Fragments Prince Street, 212-334-9588.