1 CT Black Diamond Marquise Engagement Rings | Black Onyx Halo in Gold

This style is defined by its use of an opaque, dark center stone, often a black diamond or black onyx, in the elongated marquise shape. This creates a striking, alternative aesthetic that is modern and bold, offering high visual contrast against the metal and any white side stones.

The marquise diamond ring cut naturally appears larger than other shapes of the same carat weight due to its elongated surface area. A 1-carat marquise stone, especially with the added halo of side stones (0.20 ct. tw.), provides excellent finger coverage and an impressive presence.

Black Onyx is a form of quartz used as an opaque gemstone. It is used in this marquise cut diamond ring style to achieve the dramatic black look at a highly affordable price point. The specific center stone is labeled Black Onyx Diamond, referring to its color and cut style.

The 10x5 MM measurement indicates a perfect 2.0 Length-to-Width Ratio. This highly elongated shape is favored in a marquise shaped diamond as it provides an extremely flattering, slender look that visually lengthens the finger.