Diamond shards

So, if we put an iron pickaxe in a furnace, we get an iron nugget

We put a gold gear in the furnace, we get a golden nugget

We put a diamond gear in a furnace and... nothing

After raiding several end cities, many players have cursed items, like a chestplate with binding.

So... how can we give this useless cursed items a use?

In my opinion, we should create diamond shards. We smelt a diamond gear in the furnace, we get a diamon shard. 9 shards = 1 Diamond. That way, we can get some extra diamonds from useless gear.