Jewelry can sparkle like it’s invincible, but treat it roughly and even the hardest baubles may break.

Jewelry makers have been showcasing the marine mollusk, and vintage sellers say they can’t keep them in stock.

Just as the sheer look has been trending in recent months, so have pieces with a barely there effect or peekaboo structure.

A non-abrasive toothpaste might do the trick for harder stones, but never use it on delicate gems like pearls or opals. Metal jewelry tends to be durable, but knowing the specific metal and how it ...