Duo Stud Earrings
Duo Stud Earrings
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Our delicate Duo Stud Earrings are designed for the ear stack obsessed. A dainty marquise stone sits beside a single round stone, creating an effortlessly modern pairing that works alone or layered with your favourites.
Sold as a pair.
- Marquise and round cubic zirconia, prong set.
- 925 sterling silver.

Size Guide
Ring size guide
All Zostma rings are listed in US sizes. Use the table below to find your size, or use the country dropdown to compare with your local sizing.
| Zostma (US) size | Diameter / Circumference (mm) | Australia / UK / Ireland |
|---|
How to measure
Bracelet size guide
Zostma bracelets are available in set lengths in cm. Use the table below and measuring guide to find your best fit.
| Zostma size | Wrist circumference (cm) | Fit |
|---|---|---|
| 17 cm | 14 – 15 cm | Snug / close fit |
| 18 cm | 15 – 16 cm | Classic fit |
| 19 cm | 16 – 17 cm | Relaxed fit |
| 20 cm | 17 – 18 cm | Loose / layering fit |
How to measure your wrist
Necklace & pendant size guide
Use the table below to understand where each chain length will sit on your body, then use the string method to visualise before you buy.
| Length (cm) | Length (inches) | Where it sits |
|---|---|---|
| 35 – 40 cm | 14 – 16" | Choker — sits at the collarbone |
| 42 – 45 cm | 16 – 18" | Princess — just below the collarbone |
| 48 – 50 cm | 19 – 20" | Matinee — on the chest |
| 55 – 60 cm | 22 – 24" | Opera — mid-chest to sternum |
| 70 – 90 cm | 28 – 36" | Rope — below the bust, great for layering |
The string method