Putting diamonds on a Rolex watch can cause it to lose it's value because of the diamonds themselves.
Some types of diamonds cause the Rolex to lose it's value because they are not of much value while other good quality and expensive diamonds may add value to the Rolex.
Still if you plan to sell your Rolex in the future it's best to leave diamonds off of the Rolex.
Rolex watches without Diamonds tend to sell faster and for a higher price than Rolex watches with diamonds on them.
Diamonds in a luxury watch are a great way to elevate an already premium product to an entirely new level of opulence and exclusivity. However not all diamonds are created equal, and in certain instances, improving your luxury watch can actually decrease the overall value and desirability of the timepiece.
Regardless of whether or not you buy a diamond Rolex watch, you are investing in the brand's heritage and expertise.
However, when the time comes to re-sell a diamond Rolex, in the majority of instances, its value will have depreciated to some degree or another.
When choosing diamonds for their watches, Rolex only uses the top four color grades, D, E, F, and G.