DeBeers advantages: they do this for a living, and they've got a wee bit of a marketing edge on you.
Your advantages: you actually know the girl, you apparently know what makes her tick well enough to make her fall in love with you, you know everyone in her Circle of Girlfriends reference set (or would if you cared to), you're not a sclerotic megacorp, you've got copious permission marketing assets to her and her CoGs, and you've actually got a soul, which should count for something.
Besides, this is HN. Scrappy startup versus megacorp which hasn't innovated since the first world war? Oooooh, bring it, this should be fun.
Your advantages: you actually know the girl, you apparently know what makes her tick well enough to make her fall in love with you, you know everyone in her Circle of Girlfriends reference set (or would if you cared to), you're not a sclerotic megacorp, you've got copious permission marketing assets to her and her CoGs, and you've actually got a soul, which should count for something.
Besides, this is HN. Scrappy startup versus megacorp which hasn't innovated since the first world war? Oooooh, bring it, this should be fun.