0-3 months 3.5 inches
3-6 months 4.0 inches
6-12 months 4.5 inches
12-24 months 5.0 inches
2-4 years 5.5 inches
4-5 years 6.0 inches
6-7 years 6.5 inches
8-12 years 6.75 inches
Adult Petite 7 inches
Adult Small 7.25 inches
Adult Medium 7.5 inches
Adult Large 7.75 inches
Adult X-Large 8.0 inches
Estimated Child Necklace Sizing Chart
Newborn-Age 4 (Toddler) 12 inches
Ages 5-12 (Child) 14 inches
Estimated Adult Necklace Sizing Chart
Collar 12-13 inches
Choker 14-16 inches
Princess 17-19 inches
Martini 20-24 inches
Opera 28-34 inches
Rope Over 45 inches
This chart is just an estimate and it is always best to measure the actual wrist or neck for a more proper fit.
Please remember to add 1/2 inch for comfort and growth.