Hair Pin
A decorative pin worn in a bun or plait. Juda pin in the north, and part of the jadai set in the south.
A juda pin pushes into a bun and holds by friction, with the ornament sitting on the outside.
South Indian jadai billai are a sequence of plaques pinned down the length of a plait, narrowing towards the end.
Pearl versions cluster small pearls into a floral head, which stays light enough not to drag the hair.
When you are buying
Weight is the constraint. Anything heavy pulls out of a bun within an hour, so pearls and light metal work better here than solid gold.
Hair ornaments
A few from the collection, from ₹700.

The Lantern Pearl Ring

The Blush Ring

The Duet Pearl Ring

The Moonrise Ring

Lustrous Gold Finish Pendant Accentuated With 7mm Oval White Pearl

Twirled Knot Pendant Accentuated With 7mm Oval White Pearl & CZ

Rich Red Faux-leather & White Pearl Bracelet

Bright Sky-Blue Faux-leather & Peach Pearl Bracelet
Brooch
A pinned ornament. In Indian wear, most often a saree pin holding the pallu in place at the shoulder.
Passa
A fan-shaped head ornament worn at the side of the head, above the ear. Also called a jhoomar.
Maang Tikka
A head ornament worn along the hair parting, with a pendant resting on the forehead.
Bridal Set
A matched group of pieces worn together for a wedding: typically a necklace, earrings, and often a maang tikka.