As anyone who ever had the infectious tune from Disney's The Little Mermaid stuck in their head knows, "It's better down where it's wetter, under the sea". But although the film heroine Ariel's underwater clamshell bikini outfit was quite fetching, it was definitely under-accessorised. Now, fashion-conscious underwater enthusiasts can pay homage to marine life without compromising on style, thanks to the new Ocean collection by Swiss jeweller de GRISOGONO.

Some say women have the edge in poker. They're often more intuitive, coy and, especially when playing at a male-dominated table, they've got sympathy and sex appeal on their side. Some even argue that women can better detect nuances in facial expression, emotion and tones in the human voice, which let them know when to call a fellow player's bluff.

Whether or not that's all true, any lady would certainly have a leg up on style with this stunning and slightly unusual collection of rings by Swiss haute jeweller Adler. The pieces are inspired by the nature of poker, a blend of discretion and show, strategy and luck. Of course, little about this collection is discreet, because with ice like this, any wearer will be showing everyone her hand.

Practically every trade has its secrets, the mythical and mystical whispers that pass from master to apprentice, but few guard theirs quite so jealously and pridefully as the jeweller. Working for the world's wealthy and powerful, jewellers are an elite clan of artists who must consider not only the stone in their hand and the vision in their head, but the wearer who will don their creations. Theirs is a transformational art, one meant to bring more life to its living mount.

Recently, Van Cleef & Arpels announced the opening of the l'École Van Cleef & Arpels jewellery school, where a progression of à la carte courses gives pupils a glimpse into this hush-hush art of jewellery making, imparting a keen eye for stones and an appreciation of the craftsmanship that goes into turning them from rocks into glittering works of art.