When purchasing an oval diamond, it's crucial to be well-informed about the specific characteristics that define its quality and beauty. Whether buying an engagement ring or a luxurious piece of jewellery, understanding these aspects can make a significant difference in your selection. Below, we delve into three essential tips you should know before purchasing.
What To Look For When Buying an Oval Diamond
Avoid Diamonds G or Below on the Colour Scale
One of the most critical factors to consider when buying an oval diamond is its colour. If you desire a truly white diamond, it's advisable to avoid stones that are G or below on the GIA colour scale. The GIA colour scale ranges from D, which is the most colourless, to Z, which is the most yellow. Oval diamonds tend to show colour more prominently, especially towards the tips of the stone. Therefore, selecting a diamond with a higher colour grade ensures that it appears more colourless and vibrant.
Ideal Ratio for Oval Diamonds: 1.35 to 1.5
The second critical aspect is the length-to-width ratio of the oval diamond. A ratio between 1.35 and 1.5 is considered ideal for achieving a balanced and aesthetically pleasing oval shape. This ratio is calculated by dividing the length measurement of the stone by its width. While you can opt for a ratio above 1.5 for a more elongated look, it's essential to carefully evaluate the stone. A higher ratio might lead to a shallow cut, which can result in windowing, where the diamond loses its brilliance and appears less sparkly.
Ovals Without Bow Ties Do Exist
Lastly, many buyers are concerned about the "bow tie" effect that can occur in oval diamonds. This effect is a dark area across the center of the diamond, which can detract from its overall appearance. Fortunately, ovals without bow ties do exist, but they require a different faceting pattern. If you examine the diamond's certificate, stones with certain faceting patterns will exhibit a bow tie, while others will not. Although these diamonds are rarer and often need to be custom cut, they offer a more brilliant and uniform appearance, free from the distracting bow tie effect.
Conclusion
Purchasing an oval diamond is a significant investment, and making an informed decision can enhance both the beauty and value of your purchase. By prioritizing a higher colour grade, selecting an ideal ratio, and seeking out diamonds without bow ties, you can ensure that your oval diamond will not only meet but exceed your expectations. With these considerations in mind, you are well on your way to finding the perfect oval diamond that will be cherished for years to come.