Chocolate Diamonds

Real diamonds are kind-of expensive. But you want to give one, and you want it to be appreciated. Thus, how about a solid block of chocolate carved into the shape of a brilliant-cut diamond?

Here's some useful conversion factor information:

The "grain" is an ancient unit, based on the weight of a grain of wheat, which we can assume is an average. The grain is the smallest unit of weight in the avoirdupois, troy, and apothecaries systems, and is the same value in all of them.

4 grains = 1 carat
480 grains = 1 troy ounce
5760 grains = 1 troy pound
437.5 grains = 1 ounce avoirdupois
7000 grains = 1 pound avoirdupois

For the metrically inclined:
15.432 grains = 1 gram

Returning the focus to diamonds:
120 carats = 1 troy ounce
That's also a bit more than 31 grams
12 troy ounces = 1 troy pound
That's also about 373 grams

1 avoirdupois pound = 454 grams
That's also 16 avoirdupois ounces
1 avoirdupois ounce is about 28 1/3 grams

I think a one-troy-ounce, or 120-carat chocolate diamond could be a pretty interesting gift. What could make it even more interesting is if you added cherries. Why? Because just about EVERY product that has cherries in it also comes with a warning, basically, "Look out for pits!" Which means you could safely bury a real diamond in that chocolate...for the most interesting gift of all.