Did I get lowballed ?

I found these while I was working, it has a 21k stamp so I assumed it wasn’t gold plated. I took it to a jeweler and at first he saw some “rose gold” color so he thought it was gold plated and not real gold. He said if it was real his offer would be 400$. He took out his tools and made a few streaks with the gold and put a few drops of chemical and no signs of reaction. Then he said it was real and his deal was $400. This is about 27 grams of 21k gold. Just because it’s crushed and its condition would it make it less valuable ? Did I get lowballed ?

I found these while I was working, it has a 21k stamp so I assumed it wasn’t gold plated. I took it to a jeweler and at first he saw some “rose gold” color so he thought it was gold plated and not real gold. He said if it was real his offer would be 400$. He took out his tools and made a few streaks with the gold and put a few drops of chemical and no signs of reaction. Then he said it was real and his deal was $400. This is about 27 grams of 21k gold. Just because it’s crushed and its condition would it make it less valuable ? Did I get lowballed ?