4 carats of brilliance. Our Luise Ring — Oval Solitaire. When choosing an oval lab diamond there are a few key considerations to be mindful of, that you might now already know: Ovals can have a subtle shadow in the centre of the diamond known as the bow tie. We select diamonds that offer the most brilliance whilst minimising the bow tie appearance. Not all ovals are elongated. Ratio or the length to width of your oval diamond is important to ensure that it has a strong visual impact and appears balanced and elegant on the hand. Symmetry and polish. Any fancy shape diamond (anything other than a round brilliant cut) cannot be graded as excellent cut. We can and do however, only source diamonds that possess excellent polish and symmetry. This is because an excellent symmetry ensures the facets perfectly align and intersect — allowing for maximum brilliance. And an excellent polish grade ensures your oval diamond will produce crisp reflections and undistorted light transmission. #ovaldiamond #labdiamond #engagementring #jeweller #TMC #themoissanitecompany