Right, Eric, you've made that point about a thousand times. Give it a rest, please. Dona was hardly a cow, appeared as elegant and regal as any of her contemporaries, and had as much or more public adoration as any of her contemporaries. Bismarck's classless and tasteless side comments are not the last word of historical fact.
That said, why wouldn't Dona graciously accept and wear jewelry designed by her husband? Which consort rebuffed and stood in defiance of her husband's wishes the way you appear to have expected Dona to do? Both Alexandra's certainly did not; Mary did not; nor Minnie. Vicky probably would have, but had no cause.