How Much Is My Twitty Howard Diamond Ring Worth?

[sumhyperlilvietboi]

Hey guys. I have a question. Recently I found a ring that has a diamond in the middle of a ruby or pink gem. The diamond is about 1/4-1/2 of a carat. Around the border it says Houston Toshiba. On one side it says HOWARD above a picture of a golf set holder i think. On the other side it has the initial T/H on it above 1983. I did some researd and I think that it belonged to Twitty Howard who is a pro golfer. Its a men''s ring the thinnest part of the band is half of half an inch wide. The band is about 2 cm thick. 18k gold. Diamond is clear not foggy. Its color is pretty white. Can someone please tell me about how much it is worth? I tried everywhere but can''t find a price. Thnx