The first card we have is Judgment. This card represents a moment of change, a turning point in your life. The ring you have found could be a positive sign that indicates a period of new opportunities that are about to arrive in your life. The card also suggests that you must be ready to welcome these opportunities and make the right choice.
The second tarot is the Knight of Cups. This card represents adventure and enthusiasm for new opportunities. The ring would therefore represent a symbol of possibility, something to be eagerly grasped and made the most of. The card also indicates that you must be ready to make quick decisions and consider all the possibilities that come your way.
Finally, the third card is Wheel of Fortune. This card represents the cycle of life and constant change. In this case, it could mean that certain situations repeat themselves over time and that the ring you found could be a positive sign to take into consideration, but you must be ready to understand when the situation is bound to change, as well as when you need to to take a step back to let go of something old and make room for something new.
In conclusion, the three cards seem to suggest that the ring you have found could be a positive sign for you: it can represent new opportunities and challenges to consider. You have to be ready to face every possible turn with enthusiasm, and be aware of the cycle of life to know when you need to take a step back or when you need to grab an opportunity with enthusiasm. So, the answer to your question is: Yes, the ring you found can be a sign of luck for you.