Jewelry Design Van Gogh's Sunflower Earrings by Larissa Moraes Pair of handmade earrings made with the best raw material: gold 18k and natural gemstones. Van Gogh's sunflowers are perfectly materialized in the many yellow hues of citrines. The gemstones overlap each other creating a 3D effect seen in flowers and their many layers. A matte finish with lines represents the leaves while a polished finish is used to represent the branches.