A well-cut 3.5ct diamond ring measures around 9.6-9.9 mm, which offers substantial finger coverage and strong light performance. At this size, cut quality becomes critical to maintain brightness and avoid depth-related dullness. A secure six-prong or low-profile setting is recommended for daily wear due to the stone’s weight. Because it sits just below the major price jump at 4 carats, a diamond ring 3.5 carat provides a large face-up appearance with better cost efficiency.

What Quality Grades Should You Consider for a 3.5ct Diamond Ring?

For a 3.5 ct diamond ring, quality grades have a direct impact on visible performance. Cut should be Excellent/Ideal to ensure maximum light return and prevent windowing or leakage. Because inclusions are easier to detect at this size, VS1–VS2 clarity is typically the minimum range for a clean face-up appearance. Colour becomes more noticeable as well; most buyers opt for G-H, with F-G preferred for high transparency. At Flawless, we have the best available 3.5 carat lab grown diamond rings.