Jewelry Trends of Opal: The October Birthstone Trends Of Opal provide a variety of options, from delicate opal solitaire necklaces to elaborate opal statement rings. One more trend that is becoming popular in modern times is the use of opal in combination with other gemstones, which helps in creating stunning and eye-catching pieces. Opal doublets and triplets, which combine opal with other materials to enhance its color and durability, have also become increasingly popular in contemporary jewelry designs. In terms of design, jewelry trends of opal also showcase the modern and minimalistic settings that grant the opal to take the center stage.