Considering most big shops that are still in business are only offering 175-200c per gem now, them being sold for 228c is a great price. With the amount of hunts that go on, the gem market has dropped in value. Tools are the cheapest they have ever been and prices are still being lowered as shops are competing for customers.
The Oortstone price is low but fair. Which I am glad to see with the number of portals/hubs that are currently active.