Agate gemstone necklace in sterling silver

Collar (14" / 36cm). The shortest adult size. It wraps the middle of the neck and sits tight to the skin — bold, and best on bare necklines like off-shoulder or strapless.

Choker (16" / 41cm). Rests right at the base of the neck, on or just above the collarbone. A brilliant everyday foundation and the natural home for a small pendant. On a wider neck it can fit more like a collar.

Princess (18" / 46cm). The most popular length there is, and the safest gift. It falls just below the collarbone and flatters nearly every body type and neckline — the go-to for a focal pendant.

Matinee (20–24" / 50–61cm). A dramatic drop onto the upper chest. Great for thicker chains and statement pieces, and the length that works over crew necks and turtlenecks where the collarbone is covered.

Opera (28–36" / 71–91cm). Long and fluid, hanging below the bust. Wear it as one long line, or loop it twice for an instant choker-plus-princess layer.

Rope (36"+ / 91cm+). The longest category, reaching the waist. Endlessly versatile — double it, triple it or knot it to build your own focal point.