The most classic diamond engagement ring is a Tiffany style four or six prong solitaire style. However today our most popular diamond engagement ring is a little different. The most popular ring features a round brilliance center stone and round cut accent diamonds with a HALO. Halo refers to the accent stones that go around the main stone. Variations of this theme are by far today’s most popular diamond engagement ring. Some halos are round, and others are cushion or square shaped but again the most important thing is the ring has ALL round stones. Round diamonds and have always been the most popular. Round brilliant cut diamonds will also look the largest and have the most brilliance of any cut in an “apples to apples” comparison. So there you have it, today’s most popular diamond engagement ring is a halo style with all round diamonds.