Following are some of the hot trends of 2018. Oval Diamonds With vintage styles making a comeback, the oval is among the most popular trends this year. It is the perfect choice for women who are looking for something between the emerald and round cuts. Oval diamonds can have a range of length-to-width ratios, which means it is easy to find the right stone for you. The common ratio is 1.5, but it is possible to get a stone that has a more elongated look, or a rounder one. Oval diamonds go well with simple bands. Rose Gold Rose gold has a pink hue, which makes it one of the favorites among women, and a popular choice for engagement ring metal. The most appealing thing about rose gold is that it looks good on all skin tones, such as on your 1 4 ct princess cut diamond ring. East-West Setting Classic ring settings have the center stone running vertically on the finger, but the East-West has it running horizontally instead. Most stones can be set this way.