An oval cut engagement ring features a diamond that is a modified brilliant cut, meaning it shares many facets with the classic round brilliant, resulting in excellent sparkle and fire. The "oval cut" refers specifically to the diamond's unique elongated shape, which offers a modern yet timeless aesthetic. This shape tends to appear larger than round diamonds of the same carat weight due to its extended surface area, and its elongated form can create the illusion of longer, more slender fingers on the wearer.

The length-to-width ratio (L/W) of an oval diamond greatly influences its appearance, determining how slender or wide it will look. While personal preference plays a significant role, a common and widely preferred ratio for oval diamonds is typically between 1.35 and 1.50. A lower ratio will result in a wider, more rounded oval, while a higher ratio creates a longer, more slender look. It's recommended to view various ratios to see what appeals most to you.

The "bow-tie effect" is a common characteristic in oval (and other elongated brilliant-cut) diamonds, appearing as a dark, bow-tie-shaped area across the center of the stone. This occurs due to the way light reflects within the diamond's facets. While some degree of a bow-tie is almost always present, a well-cut oval will have a minimal and less distracting bow-tie. It's crucial to visually inspect an oval diamond, ideally in person or via high-quality videos, to assess the visibility of the bow-tie effect before purchasing, as it's not typically noted on a diamond certificate.

Oval diamonds offer excellent brilliance and sparkle, often rivaling that of a round brilliant. They are a fantastic choice for those who desire the sparkle of a round but a more distinctive shape. In terms of perceived size, oval diamonds generally appear larger than round diamonds of the same carat weight due to their elongated shape and larger surface area. This can be a significant advantage for those looking to maximize the visual impact of their engagement ring.

Oval diamonds are highly versatile and look stunning in a variety of settings. Popular choices include:

• Solitaire: A classic and elegant choice that highlights the diamond's beauty.
• Halo: Surrounding the oval with a circle of smaller diamonds enhances its brilliance and makes the center stone appear even larger.
• Three-stone: Flanking the oval with two smaller stones (often different shapes) can symbolize the past, present, and future of your relationship.
• Pave: A band adorned with small diamonds adds extra sparkle and complements the oval's brilliance.
• Bezel or half-bezel: Offers a more modern look and increased protection for the diamond's edges.

Due to their elongated shape and brilliant faceting, oval diamonds can be somewhat forgiving when it comes to inclusions, as the sparkle can help mask minor imperfections. However, they can show color slightly more than round diamonds, particularly near the tips. If you prefer a colorless appearance, aiming for a higher color grade (e.g., G or H and above) is generally recommended, especially for larger stones or platinum/white gold settings.

Oval diamonds, with their rounded corners, are generally more durable than cuts with sharp points (like marquise or pear), which can be more prone to chipping. However, like any diamond, they still require proper care and a secure setting to prevent damage. A well-chosen setting, such as one with prongs that adequately protect the tips, can further enhance its durability.