Never tried Tiffany but anyone having a size debate on cartier…large model all the way! Went with yellow gold LM and haven’t regretted it since! I don’t think its “too big” at all and both the diamond and the chain really sparkle! Below is also a picture of the SM next to a yg LM and rg LM (i dont remember which is which). Also included a layering pic with my vca guilloche