You can buy a diamond at Tiffany, Blue Nile, or Costco, but there are some things you should know before buying one anywhere.

From engagement rings to vintage diamond-studded pendants, the platform offers a wide selection of pre-owned fine jewelry.

It's not hard to find a high-quality, affordable engagement ring if you know where to look. Here's where our editors recommend shopping.

Diamond engagement rings are a symbol of everlasting love for ... certifications that authenticate them so that buyers can buy with peace of mind.

This change can be traced to the innovative production processes behind lab-grown diamonds. RELATED: Where to buy the best affordable fine jewelry she will love Unlike traditional diamonds ...

Among the best deals we spied is the $2,000-off price cut on the 1.5-carat Round Lab-Grown Diamond Earrings set in 14K Yellow ...