Jewelry Size Guide
Jump to the section you need: Rings | Necklaces | Bracelets | Earrings
Ring Size Guide
Getting your ring size right makes all the difference. Use one of the methods below to find your measurement before ordering.
Method A: Measure an Existing Ring
If you already have a ring that fits well, place it on a ruler and measure the inner diameter (the distance across the inside of the ring). Use the chart below to find your size.
Method B: Measure Your Finger
- Wrap a thin strip of paper or a piece of string around the base of your finger.
- Mark where the paper overlaps.
- Lay it flat against a ruler and measure the length in millimeters.
- Divide by 3.14 to get the diameter, then use the chart below.
Ring Size Chart
| US Size | Inner Diameter (mm) | Inner Circumference (mm) |
| 4.5 | 15.3mm | 48.0mm |
| 5 | 15.7mm | 49.3mm |
| 5.5 | 16.1mm | 50.6mm |
| 6 | 16.5mm | 51.8mm |
| 6.5 | 16.9mm | 53.1mm |
| 7 | 17.3mm | 54.4mm |
| 7.5 | 17.7mm | 55.7mm |
| 8 | 18.2mm | 57.2mm |
| 8.5 | 18.6mm | 58.4mm |
| 9 | 19.0mm | 59.7mm |
| 9.5 | 19.4mm | 61.0mm |
Ring Sizing Tips
- Fingers are slightly larger in the evening and in warm weather. Measure at the end of the day for the most accurate fit.
- If you are between sizes, we recommend choosing the larger size for a more comfortable fit.
- For rings with wider bands (such as eternity or pavé bands), consider sizing up by half a size for comfort.
- Adjustable open-band rings do not require an exact size. They flex to fit most fingers.
Necklace Length Guide
Necklace length determines where a pendant sits on your neckline. Use the guide below to choose the right length for your style and neckline.
Necklace Length Chart
| Length | Where It Sits | Best For |
| 14" / 35cm | Choker, sits at the base of the neck | Crew necks, off-shoulder tops, layering as the shortest piece |
| 16" / 40cm | Collarbone, sits just at or above the collarbone | Most necklines; the most popular everyday length |
| 18" / 45cm | Below collarbone, sits 1"-2" below the collarbone | V-necks, scoop necks, layering as a mid-length piece |
| 20" / 50cm | Upper chest, sits at the top of the chest | Deeper necklines, relaxed layering |
| 22"-24" / 55-60cm | Mid-chest, sits at the center of the chest | Statement pendants, longer layering looks |
Luvia Necklace Lengths
Most Luvia necklaces come with a 16" chain + 2" adjustable extender, allowing you to wear them at 16" or extend to 18". This covers the two most popular everyday lengths and works with most necklines.
Necklace Sizing Tips
- If you prefer the pendant to sit lower, use the extender to adjust to 18".
- For layering, pair a 16" necklace with an 18" or 20" piece for a clean, staggered look.
- Pendant size also affects perceived length. A larger pendant will draw the eye downward and appear to sit lower than a delicate solitaire at the same chain length.
- Not sure which length to choose? The 16" + extender option works for most body types and necklines.
Bracelet Size Guide
Choosing the right size ensures your bracelet feels comfortable and sits the way you prefer.
Step 1: Measure Your Wrist
Wrap a flexible measuring tape around your wrist just above the wrist bone, snug against your skin but not pulling. If you do not have a tape measure, wrap a string or strip of paper around your wrist, mark where it overlaps, then lay it flat against a ruler.
Step 2: Choose Your Fit
Use your wrist measurement as the starting point:
- Close fit: Add 0.25–0.5 in (about 0.6–1.3 cm) to your wrist measurement.
- Relaxed fit: Add 0.5–0.75 in (about 1.3–1.9 cm) to your wrist measurement.
Step 3: Choose a Bracelet Length
Choose the next available bracelet length that meets your fit preference. If you are between sizes, we recommend sizing up.
The Luvia Signature Moissanite Tennis Bracelet is available in these fixed lengths:
| Length (inches) | Length (centimeters) |
| 6.1 in | 15.5 cm |
| 6.5 in | 16.5 cm |
| 7.1 in | 18 cm |
| 7.5 in | 19 cm |
| 7.9 in | 20 cm |
| 8.3 in | 21 cm |
For Adjustable Bracelets
Some Luvia bracelets include an extender chain, such as a 6.3 in + 2 in extender or a 6.7 in + 1.57 in extender. This lets you adjust the fit for more comfort. Check the individual product page for its exact length and extender details.
Tennis Bracelet Fit Tip
A little movement lets a tennis bracelet catch the light. If you are between available lengths, choose the larger size for a comfortable drape.
Earring Size Reference
Earring sizing at Luvia refers to the stone carat weight or total carat weight (TCW) per pair, not a physical body measurement. Use the guide below to understand what each size looks like and how to choose.
Stud Earring Size Guide
| Stone Size | Approx. Diameter | Look & Feel |
| 0.3 ct per ear | ~4.0mm | Subtle, delicate. Ideal for everyday minimal wear |
| 0.5 ct per ear | ~5.0mm | Classic everyday stud, the most popular size |
| 1.0 ct per ear | ~6.5mm | More visible presence, great for special occasions or statement styling |
| 1.5 ct per ear | ~7.5mm | Bold and luminous, a strong everyday or evening statement |
Earring Sizing Tips
- Stud sizes are measured per ear. A pair listed as 1.0 CTW means 0.5 ct per ear.
- If you prefer a subtle everyday look, choose 0.3–0.5 ct per ear.
- If you want more visible sparkle or a statement look, choose 1.0 ct per ear or above.
- Fancy-cut studs (pear, trillion, heart, Asscher) may appear slightly larger or smaller than round studs of the same carat weight due to their shape.