The box clasp doesn't project or rotate, which means the drape of a piece is uninterrupted at the closure point and the visual line reads continuously. It serves pearl necklaces and multi-strand bracelets particularly well.
Built For Ease
A line of diamonds is only as secure as the point where it opens. The double latch clasp belongs on tennis bracelets, diamond line bracelets, and multi-strand necklaces because the closure has to match the value of the design.
Stone Story
Heat treatment in ruby is the norm, not the exception. Most commercial stones are treated to improve color and clarity, disclosed universally and accepted across the industry. What commands premiums is the absence of treatment in a fine-color stone, because untreated rubies at that quality level are genuinely rare. The standard practice defines the category; departing from it defines the exception.