Q, Are the two stones of the same hardness
These are very large stones and to be of this size, for the most part would be of a softer Material, such Mho - scale hardness of 6.4 - 9. Opal - Emerald.
Answer to your Q, is judge only by the some material, Of said stones.
If the stones are different in material hardness there will be wear on stones.
Though most setting are of findings That well last a life time.
To save the stones of there original state, would be to keep the apart.
My wedding set (engagement ring and matching wedding band.)
A 4 carat diamond ring would be ridiculously expensive. In the $100K mark I would expect. If someone is showing you their 4 carat engagement ring, it is probably cubic zirconia.
The wedding ring goes behind the engagement ring, closest to the heart.
Wedding Ring..You keep it closer to your heart.
I believe you are asking if you can give just the engagement ring and not the whole wedding set. Please clarify the question, if this is not the case. Yes, you can give just an engagement ring. Usually the man proposes with an engagement ring and then the wedding band is worn after the wedding along side the engagement ring.
Wedding ring first, engagement ring next, eternity ring last.
yes.
Yes, people of Western countries wear the engagement and wedding ring on the same finger.
yes,usually women wear the engagement ring with the wedding ring on her left hand's ring finger together.
Your engagement ring goes on the left hand ring finger, then at the wedding you move it to the right hand so your wedding ring can be placed on this finger and move it back later. You can buy engagement and wedding rings that match, but if you have a very fancy engagement ring it is better to have a plain wedding ring.
* No wedding rings or bands shouldn't cost more than an engagement ring in most cases. Often the engagement ring may come with the wedding ring. With the way the economy is going now you should have no problem getting a fairly good deal on an engagement and wedding ring.
It is not a Western tradition for the parents of the groom to buy the bride's engagement or wedding ring. Your son would buy the engagement ring and wedding ring generally as a set. He can either take his fiance into a jewelry store and let her pick out the ring or, he could choose an engagement ring (along with a wedding ring) and take a chance she will like it.