2012 Diamond Jubilee Commemorative Coins 22 CT Gold

Short answer.No.
The Royal Mint are now in the business of selling overpriced "collectables". As an exercise, pick anything in their range from say two years ago, then look it up on ebay. Be sure to check the "completed listings" as well as he "sold". You usually see a lot of sellers looking for a short term profit who are in for a nasty shock. RM prices bear no relationship to current bullion price, and in most cases the difference is too great to even recoup your original outlay.

Depending on the level of investment and the level of risk involved, a middle way has occurred to me.
Just as a brand new car depreciates from the first day you buy it, so do these hyped commemorative issues. But after a certain number of years, the car's price bottoms out. It's never going to be worth more, but the price can't go any lower.
Maybe a careful trawl through the Mint's older issues on ebay could produce a clutch of silver & possibly gold items that have bottomed out way beneath their issue price.These could be worth a punt. Bullion prices are being kept artificially low at present, but every so often there is a "dead cat bounce". I might even look at this myself.

I remember when I saw some $10 US gold Olympic coins being sold for $170 each. I had not seen them advertised when they were issued, but believed that to be well below what they had originally sold for, so I bought three. I still have one.