Gold jewellery is judged less by the metal itself and more by how it sits against your skin. The quickest way to find your undertone is to check the veins on the inside of your wrist in natural light: blue or purple veins usually mean a cool undertone, green veins mean warm, and a mix of both means neutral.
Warm undertones are flattered by yellow gold — it has been the traditional choice in South Asian jewellery for this reason, and it pairs naturally with deeper, warmer skin shades. Rose gold also works well here, especially in slightly muted, antique-finish pieces.
Cool undertones tend to look best in white gold, platinum or silver-toned jewellery. Yellow gold is not off-limits, but a cooler-toned piece will generally look brighter against cool skin than a warm-toned one.
Neutral undertones have the most flexibility and can wear almost any shade of gold convincingly, which makes mixing metals — a yellow gold ring with a white gold bracelet, for example — a realistic option rather than a styling risk.
Beyond skin tone, consider what you already wear daily. If your wardrobe leans warm (ivory, camel, rust), yellow gold will feel coordinated. If it leans cool (navy, grey, true white), white gold or silver will blend in more easily. The "right" gold is ultimately the one you reach for without a second thought.