when you go to the jeweler look at the round stone particularly at the bottom you will see a lot of cuts, then look at the bottom of a square diamond, there are far less cuts. this would lead one to believe that since there are more cuts on the bottom of the round stone than the the square one it would be more expensive, but the actual case is that since the square stone doesn’t have that many cuts means it is a higher quality stone with way fewer defects that can’t be hidden as you can with a round stone.
and as far as find a good one for around $300.00 good luck,
you might suggest to you’re boyfriend, to go to a pawn shop or second hand store, that’s where i took my wife and she picked out a ring that would have cost $1500.00 at a regular store
but i only paid $500.00 !!

The square cut is a more difficult cut, generally produced at a larger size to make it less complicated. That extra weight is the main difference. Of course, I don’t think it’s ever a good idea to give a diamond as a promise ring. A birth stone or other favourites usually work better for that type of thing. I agree that white gold and silver are the best metals. Beyond that, the cut is personal preference, as is the band style. With the $300 cap, if you plan to get a real diamond, your choices are extremely limited.

Its just whatever fashions are “in” at any particular time. The jewellers can tell this and therefore they increase the prices of the rings that people are going to buy more of so they can make more money. Why dont you just wait a while longer so that your BF can save some more money and you can get the ring you really want…why would you settle for something you dont really want when with a bit of patience you can get something really nice. Let him put his money in the bank and see the ring that you like so he knows exactly how much money he needs to save.

square cut uses more diamond and creates more useless gem powder (diamond dust) which can make your lungs very itchy

Harder to make

because its cut differently ofcourse >