Diamond Ring

In Western tradition, an engagement ring is a ring worn by a woman indicating her engagement to be married. In some countries, such as the United Kingdom, it is worn on the left-hand ring finger, while in other countries, such as Poland and Ukraine, it is customary for the ring to be worn on the right-hand. By modern convention in countries such as the United States, the ring is usually presented as a betrothal gift by a man to his prospective bride while or directly after she accepts his marriage proposal. It represents a formal agreement to future marriage.

Similar traditions purportedly date to classical times, dating back from an early usage reportedly referring to the fourth finger of the left hand as containing the vena amoris or "vein of love".

In the United States and Canada today it is becoming more common, but still quite rare, that a woman will also buy an engagement or promise ring for her partner at the time of the engagement.

In Egypt, Brazil and many European countries, both the man and the woman usually wear engagement rings, most often in the form of matching plain bands of white, yellow, or rose gold.[citation needed] In these countries the man's engagement ring often also eventually serves as the wedding ring. Some men wear two rings, but this is rarer. The woman's wedding ring can sometimes have a precious stone. In Spain, the woman sometimes buys a wristwatch for the man as an engagement present.

In some countries the tradition has been for the future groom to privately select and purchase a ring, to be presented to his desired bride when he proposes.
An 18k gold banded engagement-wedding-anniversary ring combination.

With more and more couples living together prior to marriage, however, it is becoming more common for a couple to select the engagement ring while purchasing a wedding band together. In countries where both partners wear engagement rings, the matching rings tend to be purchased together. In the United States the ring is to be worn on the left ring finger (4th finger) for both men and women.

The price for an engagement ring can vary considerably depending on the materials used, the value of the gemstone, and the retailer. A conventional buying price ranging from two to three months wages for a ring guideline originated from De Beers marketing materials in the early 20th century, in an effort to increase the sale of diamonds.

When shopping for a diamond ring, the price can depend significantly on the carat weight, color, clarity and cut of the diamond, otherwise known as gemological characteristics of the diamond. While less frequent, the practice of using other gemstones such as sapphires, rubies, moissanite, emeralds, occurs to honor tradition, reduce the price of the ring, or to make it unique.

Refusing the gift

Women traditionally refuse offers of marriage by refusing to take the offered engagement ring. In some states of the United States, engagement rings are considered "conditional gifts" under the legal rules of property. This is an exception to the general rule that gifts cannot be revoked once properly given. See, whose ruling found the following reasoning persuasive: "the so-called 'modern trend' holds that because an engagement ring is an inherently conditional gift, once the engagement has been broken, the ring should be returned to the donor. Thus, the question of who broke the engagement and why, or who was 'at fault,' is irrelevant. This is the no-fault line of cases."