Solid gold omega necklaces are available in standard necklace lengths: 16 inches (collar/choker length — sits at or just above the collarbone), 17-18 inches (most popular length — rests just below the collarbone, the standard position for omega necklaces), and 20 inches (slightly lower, more relaxed position at the upper chest). Omega necklaces are less commonly made in longer lengths (24 inches+) because the collar form is most appropriate at the neckline rather than the chest.
Length and styling: the omega necklace's design is inherently a collar-position piece — its rigid form, substantial width, and smooth surface are designed to frame the neckline and collarbone, not to hang at chest or stomach level. The 17-18 inch length is the most standard because it positions the necklace's straight section across the collarbone where the flat plate surface reads most effectively against the skin. A 16-inch omega necklace creates a true collar effect, particularly effective with V-neck, scoop neck, and off-shoulder necklines.
Matching length to neckline style: for crew-neck or high-neck tops, an omega necklace at 18 inches positions the necklace just below the neckline, creating visible contrast between the garment's neckline and the gold collar below it. For open necklines (V-neck, plunging, strapless), a 16-17 inch omega necklace frames the collarbone at its most visible point, maximizing the omega's visual impact against bare skin. A 20-inch omega necklace sits lower on the chest, more appropriate for layering with longer chains or for styling with lower-cut garments where a higher-positioned collar would be hidden by the neckline.