How do I wear screw back earrings?

Screw back earrings secure by turning a threaded nut along the post until it rests comfortably against the back of the lobe. This mechanism provides adjustable tightness for non-pierced or pierced ears alike. Take care not to over-tighten the screw mechanism to avoid pinching the skin. They offer reliable security during daily wear.

What is an opal doublet?

An opal doublet pairs a genuine slice of opal with a darker backing substance like ironstone or onyx. This construction deepens the perceived play of colour while adding physical durability. Jewellers utilised this method historically to make fine opal displayable in everyday earrings. They require standard gentle cleaning away from prolonged water submersion.

How do I date these earrings?

Dating relies on identifying stylistic markers, metal hallmarks, and cut characteristics typical of periods like Art Deco or Mid-Century design. Settings from the 1920s and 1930s often feature intricate geometric cluster work, whereas 1950s and 1960s pieces lean towards bolder standalone stones. Comparing the gold carat standard and gemstone cut styles against known historical periods helps narrow down the decade of manufacture. Hallmarks stamped into the metal provide further verification.

What is basaltic sapphire?

Basaltic sapphire refers to corundum stones originating from alkali basalt geological formations, known for rich, deep colour saturation. These sapphires frequently appear in antique cluster configurations from the early twentieth century. Their distinctive crystalline makeup separates them from metamorphic sapphires. They pair particularly well with bright white gold and surrounding diamond accents.