Costco is a large American retailer that offers diamonds at very competitive prices. Some people question the quality of these diamonds, but the truth is that Costco only sells high-quality diamonds.
All of the diamonds sold by Costco are certified by the Gemological Institute of America (GIA), and they only sell diamonds that are graded “G” or better in color and “VS2” or better in clarity. Costco also offers a wide variety of diamond shapes, sizes, and settings, so you’re sure to find the perfect diamond for you.
So, if you’re looking for a high-quality diamond at a great price, then Costco is definitely the place to go.
Conclusion: Are Costco Diamonds good quality?
Yes, Costco Diamonds are good quality. They are certified by the Gemological Institute of America (GIA) and are graded “G” or better in color and “VS2” or better in clarity.