Beautiful and chic 14k gold stud earrings. Those are hollow freeform cubes which slightly vary from each other to create an organic and unique look. The cubes are about 5 by 5 by 3 mm (height). With a matte finish.
Also available, a matching necklace here: http://www.etsy.com/listing/74256695/14k-gold-freeform-cubes-necklace
Also available in silver, here: https://www.etsy.com/listing/93689479/silver-stud-earrings-freeform-cubes