In the early 1960s, jewelry was a continuation of the Fifties with the use of gilded metal, pearls, sparkling paste and rhinestones. Then, designers began to use low cost materials : plastic, resin, vinyl and perspex. Influenced by the artistic movement Op art, large geometric shapes (diamonds, hexagons, circles…) and black and white (monochromatic) jewels became very popular. Pop art had also an influence on Sixties jewelry with bold colors (hot pink, orange, turquoise and yellow) and color blends. Floral jewelry was also very popular in the Sixties with the hippy movement (flower power). The big earrings was also a major trend in the 60s. Produced on a massive scale, with low cost materials, jewels were affordable for everybody.
Sources: vintagedancer.com and Pinterest