The Fine Jewelry & Gems Guide

For gold, check karat, alloy colour, weight and hallmarks; for platinum, confirm the stated fineness. For diamonds, examine the grading report and the stone in person under more than one light. For coloured gems and pearls, ask about treatments, origin claims and care in writing. Fit matters: rings and bangles should be comfortable in warm weather as well as air-conditioning.

Ask for an itemised invoice describing metal fineness, gemstone identity, dimensions and any grading report or treatment disclosure. A laboratory report is useful evidence about a particular stone, not a guarantee of beauty or future value. Inspect prongs, clasps, links, solder points and the back of the setting; delicate settings need regular professional checks.

Asian buyers often encounter jadeite, cultured pearls and regional gold traditions alongside international maisons. Ask for gem identity and treatment disclosures rather than relying on colour names or seller shorthand. Temperature and humidity affect ring fit; check sizing late in the day and understand resizing limits before purchase.

Store pieces separately to prevent scratching and tangling. Remove jewelry before swimming, exercise, household chemicals and activities that may strike a setting. Cleaning methods depend on the stone: porous, treated or fracture-filled gems may be damaged by heat, ultrasonic cleaners or solvents. When unsure, use the jeweller's written care advice.