Note that there are different types of metal choices such as white gold, yellow gold, green gold, rose gold, black gold, antique gold, etc. Out of these, white and rose gold diamond engagement rings are the most preferred options.     White Gold Diamond Engagement Rings White gold is an alloy of yellow gold and a white metal like manganese, palladium, or nickel. Additionally, it will be coated with rhodium or any other plating in order to hide the yellowish tint of the resultant alloy and to give it a lustrous appeal. Choosing white gold diamond rings will be the best option if you want to own a ring that resembles a platinum diamond ring at an affordable price. Rose Gold Diamond Engagement Rings Rose gold is an alloy of copper and yellow gold. You can even increase or decrease the intensity of the pink color by altering the amount of copper metal used in it. Rose gold diamond rings will be perfect for all the couples who prefer a unique, romantic, and vintage-inspired diamond engagement ring. Additionally, this will be a better option when it comes to durability of the metal.