BURLE MARX 18K GOLD DESIGNER RING: Mid century designed ring by Burle Marx. Stamped ''Burle Marx 750 No Bras GB 7*7''. Size 4, approx. 16.4 grams. Roberto Burle Marx, 1909-1994, was Brazil's most celebrated, and internationally known as the most important landscape designer of the 20th C. He also was a versatile artist in painting, sculpting, tapestry and jewelry designs.