Oval Cut Diamond Buying Guide

OVAL CUT DIAMOND – LENGTH TO WIDTH RATIO

A diamond’s length to width ratio reveals how proportionate it is according to its intended shape (i.e. square or rectangular). To calculate the length to width ratio, divide the length of the diamond by its width. For instance, a diamond with a length of 5.5mm and a width of 3.5mm has a length to width ratio of 1.57.

While primarily dependent on personal style and preference, the Oval Cut Diamond is usually most appealing with a ratio between 1.30-1.50. Review various Oval Diamonds to determine which ratio is most appealing to you.

OVAL CUT DIAMOND – CLARITY

The GIA grades Clarity from best to worst:

  • IF – Internally Flawless
  • VVS1 – Very Very Small Inclusions 1
  • VVS2 – Very Very Small Inclusions 2
  • VS1 – Very Small Inclusions 1
  • VS2 – Very Small Inclusions 2
  • SI1 – Small Inclusions 1
  • SI2 – Small Inclusions 2
  • I1 – Inclusions 1
  • I2 – Inclusions 2

HISTORY OF THE OVAL CUT DIAMOND

Oval shaped diamonds have been popular for centuries. The earliest oval diamonds date back to the 1300s, though they aren’t described by name in literature until the 1800s.

In 1957, a Russian diamond cutter named Lazare Kaplan perfected the oval cut process. He had a knack for turning undesirable rough stones into gorgeous diamonds. His technique significantly improved the brilliance of the oval diamond. The process that Kaplan pioneered is what diamond cutters use to create oval cut stones today.

BEST SETTINGS FOR OVAL CUT DIAMONDS

Oval cut diamonds are versatile, meaning they can look good in just about any setting.

The best settings for oval cut diamonds generally have four or six prongs, showcasing the shape of the diamond. Oval cut diamonds can also look fantastic in bezel settings. Some oval cut diamond engagement rings, particularly those with three or five stones, feature four or six prongs for the center diamond, plus a bezel setting to hold the side diamonds.

HALLO SETTING

A sparkling halo of small diamonds makes an oval cut radiate even more. Oval engagement rings with a halo setting boast plenty of character—no matter the carat weight.

SOLITAIRE SETTINGS

The classic, simple style of a solitaire setting lets the oval take center stage. From yellow gold to rose gold, a solitaire ring will never go out of style.

SIDE STONT SETTING

The classic, simple style of a solitaire setting lets the oval take center stage. From yellow gold to rose gold, a solitaire ring will never go out of style.

PAVE SETTINGS

A pavé ring brings additional character and sparkle to any oval cut diamond. The styles range from twisted bands to solitaire-style pavé rings.

OVAL CUT DIAMOND – CUT QUALITY

The most important element in any diamond is the quality of its Cut, which impacts the fundamental beauty and structure of the stone along with its capacity to offer brilliance and fire. While the GIA (Gemological Institute of America) provides Cut grading for some shapes, such as Round Brilliant Cuts; it does not provide cut grading for Oval Cut Diamonds.

oval cut diamond

Bowtie Effect in Oval Cut Diamonds

Due to their fancy, elongated shape, almost all Oval Cut Diamonds have a bowtie effect. The dark space stretching across a diamond’s center is considered the bowtie. The severity of a bowtie differs among diamonds: sometimes it’s easily noticeable, and other times it’s hardly visible.

An Oval Cut Diamond with a prominent bowtie will distract from the beauty of the stone. You’ll want to be certain not to choose an Oval Diamond with a dominant bowtie. We strongly suggest having a  your stone before purchase.