Technique or creativity, what do you need to create handmade jewels? Absolutely both and a good deal of technical competence as well.
Contemporary and modern jewellery sometimes look like being simple, not too difficult to make but it is like with art, you can't take shortcuts. You need a concept and an idea and you need good tools to transform it into a real object. Strong technical skills are as fundamental as aesthetic knowldge to find step by step solutions to transform ideas in pieces of modern jewelry, first you need to be competent, then you you will be able to create something new.