Instead of taking the time and resources to create an item prior to becoming Gemmed quality, look in the Auction House - It may be cheaper and time saving.
For example, I was able to find an Elemental Greatsword (Green Quality) for 1,498 AD. A real bargain since the Elemental Aggregates go for much more. Plus I saved time upgrading it to +4 in the first place.
Also, some items can be found already Gemmed for around 119,000 AD (Gemmed Longbow) although a few go for 500,000 AD. Considering I already attempted to create one item 3 times, I could have tried to sell the Unified Elements for the same price and made out in the end - Not to mention waiting around for the actual recipe to pop up in the rare section.