What are Pink Diamonds used for

If you click the Pink Diamond icon in the Fairyland Menu bar it tells you there their uses:

Pink Diamonds! 
Whenever you're lucky enough to spot wildlife within 5 minutes of its arrival in a Garden, both the spotter and the Garden Owner will earn an extra Pink Diamond bonus!

All wildlife, from the humble mouse to the rarest of the unicorns, drop the exact same bonus of 1 Pink Diamond whenever they're spotted within 5 minutes!

Pink Diamonds are needed for the 'Fairy Tale' levels (use them to purchase Fairytale Pots and Wild Berries to attract fairies to your garden)

They are also used to purchase Fruiting Dust (sprinkle this on Fully Grown plants to halve the remaining time until Ready For Harvest)

The pink berries also are used to purchase berries for food for guppies and bees...and can use them for food for hedgies and coloured worms. Also a requirement to feed frogs, and froglets.

Also to purchase topiary pots and the coloured rocks for pondweed.

Also need berries as food for flies...and some of the candy critters. To purchase the berries you need pinks

Sorry...I keep remembering what pinks are used for...and could not consolidate in one post. The coral for the bottom dwellers is purchased with pinks too.

Thank you all for your help xx