looking for a diamond engagement ring, is emerald diamond cut the real deal?

found a .7 ct emerald diamond cut ring, looks beautiful, but i wasnt sure if the emerald meant it was fake or something, i want the REAL deal, real diamonds!! so being the male that i am i need your help lol. thanks

• Mark Broumand- 1.81ct Emerald Cut Diamond Engagement Anniversary Ring- www.markbroumand.com
• 2.62ct Emerald Cut Diamond Engagement Anniversary Ring
• 1.02CT G-H color SI2 Clarity Emerald Cut Diamond Engagement Ring 18KT white Gold Setting
• 1Ct. 14K. White Gold Certified Emerald Cut Diamond Solitaire Engagement Ring
• Classic Three Stone 14k White Gold 1.20ct Emerald Cut Diamond Engagement Ring
• 2.70ct Emerald Cut Diamond Engagement Anniversary Ring
• 3.02ct Emerald Cut Diamond Engagement Anniversary Ring