0.3 ct is on the smaller side of engagement rings - meaning they can look beautifully dainty and subtle. It is widely considered that an engagement ring should have a diamond that is no smaller than 0.3 ct.

The range of 1.0 to 1.9 carats is by far the most popular, but there are noticeable peaks at the 0.70 – 0.79 range, the 0.90 – 0.99 range and the 1.50 – 1.59 range. It's great to see that people take our advice and go for a diamond that's slightly lighter or heavier than industry cutoff weights to get the best value.

Is 3 carats too big for an engagement ring? If you are sure that your partner does not actively long for a smaller stone, then a three-carat diamond is perfect. It will look large and brilliant on their hand – once you put it there and pop the question!

"Shoppers know they can rely on Etsy for beautiful and unique pieces, whether that's through custom-made rings, rare vintage finds, or unique designs," Isom Johnson says. "Etsy is the perfect place for shoppers to find engagement rings that best illustrate their partner's aesthetic.