The short answer is, for our unique service and ensuring your access to it. We spend a lot of time on each client, this is not a free lunch.
The longer answer is, that our service is kick-ass in providing each individual client with Fine Jewellery that is visibly superior in quality and demonstrably better in value than 99% of what is out there. We know, like and work with the very best sources for materials, diamonds and craftsmanship in London today. Everything is unique. This is your opportunity to access personal jewellery that will kick it's rivals out of the way. We are committed to bringing you this level of expertise, and for this commitment we ask for a retainer for the time we invest in nailing your project, right from the outset. It is deducted from your final costs (of which you will already have had an estimate for).