ka-pok

Full disclosure: ka-pok carries my jewellery so this isn't exactly an unbiased entry. ka-pok carries mostly artisanal or stuff by young and/or independent designers.

Arnault, who owns ka-pok on St. Francis Square (around the corner from Star Street) and its sister store on Sun Street, has excellent taste. He is also the official distributor of Moleskine, so if you like their products, head on over.