Ancient Egypt regarded the circle to be a logo of eternity, and the ring served to symbolize the perpetual love of the spouses. This was also the origin of the custom of dressed in the marriage ring on the ring finger of the left hand, as the historic Egyptians believed that this finger enclosed a different vein that was connected directly to the center, denominated in Latin the “Vena amoris”. The Western traditions of marriage ceremony rings can be traced to historic Rome and Greece, and were first associated with the marital dowry and later with a promise of constancy. The modern trade of rings derived from the customs of Europe in the Middle Ages as part of Christendom.  In the United States, marriage ceremony rings were firstly only worn by wives, but became standard for both husbands and wives in the course of the 20th century. Historical stylesGimmel ringsGimmel ring with the hoop opened, in the British MuseumWedding ring of groom and a bride with shadow in type of heart – symbolic sense of loveDuring the 16th and 17th centuries, European husbands bestowed a gimmel ring upon their wives. Also, in the Middle East the puzzle ring was a ancient custom: this ring consisted of a number of pieces that joined together into a cohesive band when worn properly. The object of this style of ring was to render it very difficult to put on the finger correctly such that, if the wife removed it, her husband would know. The fede ring, being a band along with two hands clasped in betrothal, is an alternative old custom of Europe that ostensibly dates from antiquity. Limited gold content in the United KingdomIn 1942 during the Second World War, British wartime restrictions on the manufacture of jewellery ended in “utility” wedding rings that were limited to a maximum mass of two pennyweights, being a little heavier than 3 grams, and were forged of 9 carat gold in place of the classic 22 carat.  The Regional Assayer Office hallmarked these rings, which assured their gold content and compliance with the wartime guidelines with a special utility mark adjacent to the mark for the year on the inside the band; the hallmark resembled a capital “U” with the ground curve absent or two parentheses enclosing an area, i. e.