How do I date a blue gemstone pendant?

Dating relies on stylistic markers such as Edwardian openwork, Art Deco geometric symmetry, or mid-century platinum mounts. Hallmark stamps and metal purity standards also help narrow down the decade of production. Examining the cut of the central aquamarine or sapphire provides further clues to the period in which the item was created.

What metals are commonly used?

Pieces feature various grades of gold, including nine carat, fifteen carat and eighteen carat yellow, rose and white gold. Platinum and sterling silver also appear frequently, particularly in twentieth-century designs. Dual-metal combinations, such as gold and silver settings, are typical of older Victorian and Edwardian examples.

Are chains usually original?

Many listings include period-appropriate chains, though finding an original matching chain from the exact year of manufacture is uncommon. Pendants were frequently separated from their original chains over time. Buyers should check individual item descriptions to confirm whether the accompanying chain is period or a later replacement.

How should I care for antique gemstone jewellery?

Gentle cleaning with a soft cloth helps maintain the metal and stones without causing damage. Avoid harsh chemical dips, ultrasonic cleaners and abrasive brushes, especially for foiled stones or softer gems like pearls. Store pieces individually in lined boxes to prevent scratches between different items in your collection.