Can I Get My Items Back?

6 year relationship (unmarried, not engaged)

Location: Florida
I’m not new to Reddit, but new to having an account

My ex boyfriend and I recently broke up about 4 months ago after a 6 year long relationship, including living together for the last 2 or so years. When I moved out into an apartment post break up, I took as much as I could at the time and only took what was obviously mine (ie girl items and boxes with my name on it). However, there is some of my stuff that he still has that he gifted to me over the years (unconditional gifts) which I wasn’t able to take at the time or could not locate when moving. I recently spoke with him the other day about what items I’m looking for and when I can stop by to get them. These gifts include a diamond necklace, nice blanket, and a longboard (gifted from him), and well as a weighted blanket (gifted from MY parents to me). I had also at some point gifted him with an expensive watch, which I did NOT intend to get back from him. He told me that he will not be giving me any items back, and that the most he would do is give me $200 dollars in return and that’s it.
When the breakup first happened, the initial agreement was that I take a small tv that we split cost on, and he would keep a larger tv that we split cost on, as well as him keep a Nintendo switch (and games!) among with other household items we split costs on, and he would pay me the half of the amount for everything we split except the tv. When I was going through a tough time mentally, I told him I wanted the (small) tv, and to not bother with the repayment of money because I didn’t want to deal with everything anymore. Now, these other items that were given to me as gifts I remembered I don’t have them already, which I’ve had for up to 5.5/6 years of the relationship, I want back what is only mine. I tried to only ask for those items (necklace, etc), but when he said no I then tried to negotiate, saying he can keep them if I at least get back only the nice watch (expensive gift for expensive gift exchange in a way). He is also refusing that.
Do I have any legal grounds to at least getting back the gifted items that are mine? Im not sure trying to sue is even worth it either. I’m basically asking for either payment for MY gifts, or receiving the gifts themselves, nothing more. The 200 is not even close to what they cost, even if I were to not ask the full amount.
Any advice is appreciated, I can clarify what may not make sense. I have been through a lot with this man over the years and am struggling in many ways at this time trying to adjust to a new life. I just want things to be fair, but due to mental illness I am stuck on the what ifs and lack of fairness of this situation.
If there’s a possibility I may be able to make a case of this, I’m not even sure of where to look/go to.
Thank you