I think it is better to build a small collection of reliable products than to buy random cheap things. If a website gives a detailed guide for measurements, I feel more confident when ordering. If they ignore basic questions or reply with copy pasted text, I become suspicious. If anyone is interested in real user experiences, I sometimes write short notes about the shops I test. You can find one of the pages here: [url=https://akkrafts.com/radiance-redefined-gold-necklace-mens-14k/] visit this page [/url] Shipping speed is not everything, but extremely slow delivery is very annoying. A product that still looks good after a few months is more impressive than something only good on arrival. I also check if the lenses have any blue light filter or anti-reflection coating. Having a tracking number that works on common sites is very convenient. Hope this helps someone.