Caution: Spoilers for the upcoming Animal Crossing Wedding Event incoming! The heart crystals are rewards for participating in the Wedding Event that will be taking place in the game between June 1, 2020 and June 31, 2020. In order to participate in the event, you’ll have to travel to Harvey’s island and take wedding photos around a specific theme — the first theme is a chapel ceremony, for instance. Depending on how well you do on each day’s challenge, you’ll receive between 5 and 11 heart crystals.
At this time, we don’t know exactly what the heart crystals are used for, but they appear to be a crafting item. As part of the Wedding Event, you’ll also unlock specific furniture, such as the Wedding Bench, Wedding Table, and Wedding Flower Stand. While you might unlock the furniture itself, there’s also a chance that you’ll unlock recipes instead, and need the heart crystals to actually build the furniture.
Regardless of the role heart crystals play in the game, there’s no denying that they’re super lovely. We totally understand why people would want them now — we do, too! Alas, it seems like the best thing to do is probably just wait until the Wedding Event starts, assuming you want to stick to doing things above board. If your moral compass allows for hacking, though, now’s the time to get yourself some heart crystals — and maybe even turn a profit by taking advantage of other impatient people!