The three most important thing to remember when searching for your ring are the following:
1, Choose a ring that expresses who you are not what is trendy. You want to love your choice years from now. Don't you think three stone and halo are a bit overdone? You don't have to do a diamond nessesarily color gems like sapphire and ruby make excellent center stones and provide unique contrast when surrounded by diamonds. They make for a uniques individual statement..
2. Choose the right jeweler. I can't stress enough how much this makes all the difference. Buying online is hit and miss ( risky) even so called certificate stones can be not what is stated on the lab report. With diamonds, you get what you pay for. If the price is too cheap and the stone is stated as high color and clarity RED Flags should go off. Shop around but don't be too frugal!! This is after all your most important piece of jewelry and a symbol of your commitment..
3. As mentioned above no matter what diamond you choose have a budget you both agree upon. Realistically, most couples can stretch 10-15% above that and usually do if the ring is well made. You don't have to buy couture "designer" mountings you are paying for thier national advertizing in the extra dollar cost.
Your local Jeweler is a good source and generally willing to meet your budget parameters. One local jeweler in my area has a state of the art CAD design shop and can replicate most commercially available designs. Raffi's Fine Jewelry in Laguna Hills, CA has an excellent reputation in my area.
Happy Hunting.
Sapphire57