Before you give this ring to your partner, think back on the time you have been together till now. There are no set rules when you should give this ring, and only decide to give this to your partner if you feel both of you want this. Someone could give a promise ring as soon as they complete 100 days together, or someone would decide to give it when they have completed a year together. When you genuinely feel like it is the right time for your relationship, give a promise ring.