NEA is another company that specializes in man made diamond gemstones. They have been known for their blue and yellow diamonds, however they recently have added a white or near-colorless gem to their inventory, although the price per carat isn't exactly a bargain at $1,600. Now, what gets a little confusing about shopping for actual jewelry at NEA, although they have some lovely creations, like white and blue and yellow diamond engagement rings Airpods microphone , is the fact that the images you click offer a basic ring in say white gold. The price, over $890 does not seem to include a central diamond gem. That must be bought separately. So a one carat white diamond at $1,600 plus the white gold mounting makes a simple solitaire ring rather pricey - about $2,500. While that may be slightly cheaper than a mined diamond ring, it doesn't exactly make it affordable or competition for someone who only has $300 or $400 and can get a CZ engagement ring in white gold....