Messika's 'My Twin Trio' necklace is elegant and timeless. It's cast from 18-karat rose gold and has a slender chain dotted with light-catching diamonds alongside larger stones - a heart, teardrop and pear. Each Messika piece comes with a two-year warranty, which is activated 28 days after purchase. To receive an additional year's warranty, register your piece on Messika's website.