Gasman62

Just repriced for a $300 dollar savings next March.

Just repriced for a $300 dollar savings next March.

Just repriced for a $300 dollar savings next March.

Congratulations on making Diamond!
Don't forget to introduce yourselves to the Diamond Concierge during their posted hours in the Diamond Lounge.  They can work wonders on resolving most issues that pop up during a cruise.  

Congrats on making Diamond!  Recent Diamond member here too.
I'll echo what others have said.  The two biggest perks are free  Cappuccinos or Lattes in the Crown Lounge, and the 4 free drink vouchers.  Your call if you tip, but we ended up taking out a bunch of $1 bills from the bank before we left so we could tip the bar or theatre servers for the drinks.  (You can also tip right on the bill if you want).
Also...we used to pass on getting our pictures taken by the Royal photographers, but now we stop often.  Then on the last night, look through them (they show on the app now) and pick the best ones (one per adult diamond member).
Another thing I loved on our recent Wonder cruise was the Backstage Tour.  I'm a big theatre fan and this tour was really neat, especially seeing backstage.  It's for Diamond and above (although they didn't even check our Sea Pass cards).  I guess it depends on the ship though as on Odyssey it  was just a talk with theatre staff.
We don't get internet on the ship as like to disconnect, but a free day is a nice bonus too for those that use it.
Enjoy your cruise!

This is a great summary of tips.

The free picture (per person) is a very underrated perk.  I forgot about it my first couple of times but now it's a nice little souvenir to remember each cruise or port individually.  Now I have pictures taken at every opportunity and then just pick the best 1 or 2 to download free on the last night.

I thought my favorite perk was going to be Diamond drinks...and they ended up going under utilized. I just don't drink all that much any more. If I had two drinks a day, that was a lot.
My favorite perk ended up being the coffee machine in the Crown Lounge and the overall quiet of the space along with the food they had out at most times of the day. Occasionally, I would bring work or a book there and enjoyed it very much.

Don't forget that the 1 day of Voom is for each Diamond person as well, and the the free day of internet can be used toward purchasing a package onboard (one day value onboard is usually $26.99-$30.99).  If you are willing to go without internet on embarkation day after sail away (no cellular service) and wait until midnight of day 2, it may be cheaper than buying voom ahead of time.  That means going without internet from about 6pm to midnight on embarkation, then purchasing 6 day plan with 1 day free. Using my worst case Icon sailing in October, internet pricing for 1 device is 23.99 (planner price) vs 30.99 (onboard).  Pre-purchased cost for 7 days would be $167.93.  Onboard using one day discount on day 2 would be essentially only 5 day cost (30.99*5=$154.95 for example) or $13 cheaper onboard.  Obviously the longer you are willing to go without internet the cheaper it gets if you decide to get it later in the cruise.
For what it's worth, I have heard stories of people buying voom through planner and then getting one day credit applied once on board through guest services, but I have never tried that myself and would not count on that.

Congratulations!
A few tips:
Make sure you specify whether you are using your diamond drinks or not when you order.  Waiters will often apply them automatically if you don't specify and you may waste one on a low cost drink.
The coffee machine in the Crown Lounge is an underrated perk.  They also have a nice hor dourves set up at happy hour and a waiter to get drinks.
The concierge located in the Crown lounge can do a lot of things you used to have to go to guest relations for.
The free photo (each) is another nice perk.
 

My tip is to enjoy the cruise, remembering why you chose it (itinerary vs ship, etc). It's nice not paying extra for some drinks, but get value from the thousands you did pay. I do agree the lounge, if available to you, is a nice, peaceful venue.

Congratulations!! We had our first Diamond cruise on Oasis in January.
I guess it all depends what you usually 'do/purchase' when it comes to drinks and internet. I bought the soda package and bottles of water as I didn't want to use our 'free' drinks on Dr Pepper and water during the day, and then used our free drinks on wine (I don't drink alcohol so the 'boss' did well from it!). At the end of the night if we had any drinks left we would grab bottles of sparkling water to take back to the cabin. 
For internet we pre-purchased the 1 device as we usually do and flipped between us, but we then chose to have our 'free' days on sea days so we both had access if/when required. 
The Crown lounge was a nice place to get away from the crowds, and when the coffee machine was fixed on week 2(!) it meant lattes etc were accessible without queuing. The snacks were quite nice and despite it being a huge ship with lots of Diamond and above guests, it was never crowded in there. On Oasis it was ideally placed for the theatre for pre and post shows! 
We also took the chance to get our 1 free photo each (well 2 each in our case as we were B2B) so make sure you do that on your last night if you have had some pics taken.
We didn't really use any of the other benefits although we did get the complimentary waters and snacks in the room each week.
There will be much more experienced Diamond members on here with more/better advice!
Enjoy! 
 

Congratulations!  Same situation for us in May.  For us, the main thing is the 4 complimentary drinks (up to $14) per day, excluding Starbucks of course.  We like to purchase internet access for the entire cruise, but if you don't do that you would get one free day for one device.  I see those as the two main items that would be new for us.  There's a few other changes, but nothing that I will get too excited about.
I guess I should add the Crown Lounge access too.  That will be new for us.  Others might have better info on this.

Thanks Luv2Travel! Sailing Adventure OTS in April. 

Hi all. We are going to be sailing on Adventure in April as first time Diamond level. Just wondering if there are any tips youse could share about what to expect or to look for at this new level for us. Thanks in advance for any feedback.

Hi all. We are going to be sailing on Adventure in April as first time Diamond level. Just wondering if there are any tips youse could share about what to expect or to look for at this new level for us. Thanks in advance for any feedback.

Hi all. We are going to be sailing on Adventure in April as first time Diamond level. Just wondering if there are any tips youse could share about what to expect or to look for at this new level for us. Thanks in advance for any feedback.

Hi all, got the Royal up email for our upcoming sailing, put in 2 minimum bids and within the week got notified that we were upgraded to a balcony. Wasn’t expecting this. Feel very lucky it happened.

Hi all, got the Royal up email for our upcoming sailing, put in 2 minimum bids and within the week got notified that we were upgraded to a balcony. Wasn’t expecting this. Feel very lucky it happened.

Hi all, got the Royal up email for our upcoming sailing, put in 2 minimum bids and within the week got notified that we were upgraded to a balcony. Wasn’t expecting this. Feel very lucky it happened.

Hi all, got the Royal up email for our upcoming sailing, put in 2 minimum bids and within the week got notified that we were upgraded to a balcony. Wasn’t expecting this. Feel very lucky it happened.

Hi all, got the Royal up email for our upcoming sailing, put in 2 minimum bids and within the week got notified that we were upgraded to a balcony. Wasn’t expecting this. Feel very lucky it happened.

Hi all, got the Royal up email for our upcoming sailing, put in 2 minimum bids and within the week got notified that we were upgraded to a balcony. Wasn’t expecting this. Feel very lucky it happened.

Hi all, got the Royal up email for our upcoming sailing, put in 2 minimum bids and within the week got notified that we were upgraded to a balcony. Wasn’t expecting this. Feel very lucky it happened.