Solitaire And Diamond Rings – What Are the Differences Popularly known as the bride’s best friend & the groom’s best possibility to hear a ‘yes’, solitaires are jewellery designs that carry the love language across the world. You must have heard about ‘putting a ring on it’, but they never let you know how to pick that ring. How’d you know that a pink diamond is better than a colourless stone? Or is the princess cut the correct selection for the engagement ring? What’s the difference between a diamond and solitaire?