The image shows a beautiful Kundan necklace and earring set, a traditional form of Indian gemstone jewelry known for its intricate craftsmanship and the use of uncut gemstones set in gold foil, typically with a gold-plated finish. The set features vibrant ruby-colored stones and pearl drops, characteristic of many Kundan designs. 

Materials: Kundan jewelry traditionally uses highly refined (pure) gold to set uncut gemstones like diamonds, emeralds, and sapphires.

Design: It's known for its elaborate designs, often incorporating motifs like flowers, peacocks, and traditional patterns.

Popularity: Kundan sets are popular for special occasions such as weddings, festivals, and grand celebrations, complementing ethnic wear like sarees and lehengas.