The most popular titanium ring shape have been the round brilliant because people believed it to be an "ideal cut" that displayed the most brilliance and sparkle in diamond bracelet.
a flawless diamond wedding ring is no more beautiful to the unaided human eye than a grade in the middle of the scale. Once again, extremely subtle differences in clarity are very important to determine rarity, but only affect beauty when in the very low end of the scale.
We shall probably never know when the first wedding ring were discovered, but we do know that, from ancient times until the eighteenth century, all the worlds diamond bracelet came from India.