That does sound nice and refreshing! I really like all three of the elements that you mention! I didn't care much for Guerlain Herba Fresca when I tried it-- perhaps it was too minty for my taste. Green Water by Fath is also minty, but lacks rosemary or geranium. Other than trying geranium prominent scents, you might look into other fragrance options and experiment with layering. I'm not sure how complex the Clarins scent is, but those elements are often used in sort of "natural" perfumes, oils, or body sprays, like the kind at health food stores and some spas. You might be able to find essential oil blends that could provide a base for layering. Several years ago, I bought a blend that had similar elements; I think it was called "clarity" or "clarify" and was supposed to have aromatherapeutic qualities... but I just liked the scent. Aveda sprays also come to mind-- they were supposed to be chakra balancing or some such thing. Unfortunately, I'm not even sure they make them anymore! I saw them at a hair salon. :/ Nonetheless, that might be something to look into. Even the various Aveda hair and body products are nicely scented, often with rosemary, mint and geranium, so those might be something to use as well. There is also a brand called V'tae. Again, a health food store kind of brand... and I recall some refreshing herbal fragrance sprays as well. I'm not sure this was helpful at all (!) but I hope perhaps this might give some ideas for other avenues to try if you can't find a proper perfume to match your Clarins oil scent. It sounds lovely, and I hope you can find a match. Good luck!
edit to add: Of course, if you do play with essential oils, be careful of skin reactions, etc. They need to be diluted in a carrier.