Engagement Rings: How to Choose and Where to Buy Short answer: The best place to buy an engagement ring is a jeweler that gives you a verifiable diamond report, clear pricing, independent quality checks, useful setting guidance, and a meaningful return or upgrade policy. Rare Carat is a certified-diamond jeweler and merchant of record that handles checkout, billing, customer service, diamond verification, and jewelry fulfillment rather than simply directing shoppers elsewhere. An engagement ring is both a personal purchase and