Eternity Rings can be best described as wedding Rings. The common feature of all Eternity Rings is that they are stone set often with diamonds

A full eternity Ring is one in which the stones are set completely around te shank. There is a recent fashion for diamond set wedding rings which are closely rellated to style in Eternity Rings

History:

According to Dictionary of Jewellry the history dates back to 4000 years to an example found out.The endles or eternal loop is symbolic of eternal love .For this reason many Eternity rings are multi stranded or plaited.Another similar theme is for the shank to be formed like a snake sometimes swallowing its own tail

What are the designs available?

Diamonds are the most popular gemstones for eternity rings but rubies ,sapphires, emeralds and other stones are also popular usually in conjuction with diamonds. Although the full eternity is traditional , there are many reasons why it is not frequently seen.

A fully eternity costs 2 to 3 times the times of a similar half eternity ,because there are more diamonds in it. Because a full eternity ring cannot usually be adjusted for finger size , they need to be custom ordered and made. Because of this very few jewellers keep a sample range in stock. 

How is the cost decided?

Working out an estimate for a full eternity ring is a skilled and difficult task so even quoting for one is costly. Many women prefer to maximise the show of the ring by concentrating all the diamonds in the visible head or front of the ring .

Full eternity rings mounts are also much more expensive to make than "halves". because they must be made individually , or at best ,one master model needs to be made for each finger size.

Half Eternity Rings can be fairly easily sized making them a more economic stock line for retail jewelers. Because they outsell full eternities, half eternities are what jewelers stock . Full Eternity Rings can be uncomfortable to wear because of the depth of the shank beetween the fingers.

What Diamonds are used?

Wheras round brilliant cut diamonds are the commonest choice for Solitaire Rings, square or oblong stones can be excellent choice for Eternity Rings partly because they can be set edge to edge in a continuous band or line.The recent development and availibility of princess cut diamonds just adds to the attraction of square stones for eternity rings.

Time for Presenting an Eternity Ring

Options vary widely as an appropriate time for the giving and receiving an Eternity Ring . All beleive that the First Anniversary is the right time .I beleive it beats paper. Others beleive that the birth of the first child is an appropriate time .