What is a cabochon stone?

A cabochon is a gemstone that has been shaped and polished into a smooth, rounded dome instead of being cut into flat facets. This technique is typically used for opaque or chatoyant stones to display their natural colour and patterns. Jewellers have utilised this method for centuries to highlight materials like opal, jade, garnet, and turquoise.

How do I date antique studs?

Dating involves examining the metal purity hallmarks, the fastener type, and the overall mounting style. Victorian and Edwardian pieces often feature rose-cut diamond accents and closed-back settings, while mid-century examples lean towards bolder abstract clusters. Hallmarks stamped on the gold posts or backs provide specific assay office markers and date letters.

Are opal doublets authentic?

An opal doublet is a genuine gemstone constructed from a thin slice of natural opal bonded to a darker backing material for stability and enhanced colour depth. They were produced during the mid-century period to make precious opal more durable for everyday jewellery. Buyers value them as period-correct components of vintage design.

How should I clean gold studs?

Cleaning requires warm water, mild soap, and a soft cloth to gently remove oils and dust from the metal and stone surface. Submerging porous stones like opal or turquoise in liquid solutions should be avoided to prevent moisture damage. Regular polishing maintains the lustre of the gold mount without scratching the soft domed gem.