When shopping for jewellery online, you can consider the following tips: 1. Check the website: Make sure the website is credible and run by a trustworthy brand. 2. Check the details: Pay attention to the details of the jewellery you want to buy. 3. Check the price: Make sure the brand isn't overcharging you. 4. Check the guarantee: Make sure the jewellery has a buyback guarantee and is certified or non-certified. 5. Check the gold purity: If you're buying gold jewellery, check the hallmark to verify the purity of the gold