The solitaire ring design was developed in 1886 by the jewelry company Tiffany & Co. Before that, blue sapphires were the typical stone for engagement rings , as blue was considered a symbolic color of fidelity. One example of this is Lady Diana's engagement ring, which now belongs to Kate Middleton. However, the Tiffany solitaire ring was such a resounding success that it quickly became established as the classic engagement ring. The special setting of the diamond in the solitaire ring is called the Tiffany setting.

One reason for the popularity of solitaire rings (also spelled solitaire rings) is that the diamonds are shown off to their best advantage thanks to the special type of setting. In its original form, the gemstone was attached to the ring using six prongs (metal studs). This mounting is called a prong setting, but is also known as a claw setting. This aptly describes their appearance; the stone is held as if by claws. It is therefore visible in its entirety, unlike, for example, a bezel setting, in which part of the stone is hidden and only the top is visible. The incidence of light in a prong setting is correspondingly high. The light rays can illuminate the diamond not only from above but also from the sides, maximizing its sparkle and brilliance. Nowadays, it doesn't really matter how many prongs the stone is held by when it comes to solitaire rings. The name solitaire ring is derived from the French word solitaire (German: hermit, loner) and stems from the fact that the ring is usually adorned with only one gemstone – usually a diamond. It thus symbolizes the uniqueness of the beloved. In the classic solitaire ring, the diamond has a brilliant cut, the most popular and widespread cut of all. This perfectly showcases the diamond's inherent fire and brilliance. The ring band of the solitaire ring is usually made of platinum or white gold, as their color emphasizes the timeless elegance of the sparkling diamond.

There are also variations of the classic solitaire ring. Not only is the brilliant cut suitable for an engagement ring, a heart-shaped diamond is also appropriate for the occasion. At RENÉSIM, we also offer solitaire rings in princess cuts, emerald cuts, Asscher cuts, marquise cuts, oval cuts, radiant cuts, pear cuts, and cushion cuts. Each of these different styles has its own connotations: the marquise cut, for example, is said to have gotten its name from the fact that it reminded the French King Louis XVI of the smile of his mistress, the Marquise de Pompadour. In addition to the classic version in platinum or white gold, we also offer the solitaire ring in yellow gold and rose gold.