Excess our premium inventory and get help choosing from a variety of designs in 1.3 carat diamond rings with our personal concierge service. Flawless combines quality, transparency, and dedicated support to make your investment rewarding.

A 1.3 ct diamond ring provides a significant presence on the finger and is suitable for everyday elegance. A carefully chosen combination of Excellent or Ideal cut, SI2 clarity, and colour (J for platinum or white gold settings, or K for yellow gold) guarantees optimal brilliance and sparkle for round diamonds in this weight range. Our 1.3 carat engagement rings create a big impression without reaching the higher price tier of heavier stones. Shop with Flawless for the balance of size, quality, and precision cut
Compared to smaller diamonds, including those in the 1.0–1.2 carat range, a 1.3-carat diamond is more noticeable. It provides more finger coverage and a dominating appearance because of its round 1.3ct diamond, which usually has a diameter of 6.8–6.9 mm. For those looking for a diamond that stands out as the focal point of an engagement ring, our 1.3 carat solitaire diamond ring is a perfect choice.
1.3 Carat Diamond Ring- FAQ's
The face-up area is approximately 40.6 mm², which is ideal for this weight. This means the diamond “looks its weight” and provides noticeable presence without being oversized.
To maximise brilliance and fire, always choose a cut grade of Excellent (GIA) or Ideal (AGS). A high-quality cut ensures the diamond appears bright and lively, even if clarity or colour is modest.
Cut affects brilliance, sparkle, and overall visual size. Well-cut diamonds in this weight range can appear larger and brighter than heavier stones with average cuts.
A ratio between 1.00 and 1.02 ensures a perfectly round look that maximises the stone’s aesthetic appeal and symmetry.