Size guide featured image

Precision first. Use this guide to determine accurate sizes for rings, bangles/bracelets, and necklaces. All recommendations align to luxury-fit standards for 18K gold jewelry.

Ring Size

Method A — Measure an Existing Ring

  1. Place a ring that fits the intended finger on a millimetre ruler.
  2. Measure the inner diameter in mm (do not include metal thickness).
  3. Match to the quick reference below. Average 2–3 readings.

Method B — Measure Your Finger

  1. Wrap a narrow paper strip or thread around the base of the finger—snug, not tight.
  2. Mark the overlap. Measure the length in mm = circumference.
  3. Match to the quick reference below.

Professional Tips

  • Measure at day’s end; hands are smaller in the morning and in cold conditions.
  • If between sizes, select the larger.
  • For wide bands (≥4 mm), size up by ¼–½.
  • For full eternity rings, order exact size; these cannot be resized.
  • Toi et Moi and multi-stone designs: match finger size and shank width for balance.

Popular Ring Sizes — Quick Reference

(US ↔ India ISO; values approximate)

US SizeInside Diameter (mm)Inside Circumference (mm)
314.144.3
3.514.545.6
414.946.8
4.515.348.1
515.749.3
5.516.150.6
616.551.9
6.516.953.1
717.354.4
7.517.755.6
818.156.9
8.518.558.1
91959.7
9.519.461
1019.862.2
10.520.263.5
1120.664.7
11.52166
1221.467.2
12.521.868.5
1322.370.1
1423.272.9

Bangle & Bracelet Size

Closed Bangles (Fixed Size)

Measure the widest part of your hand while bringing thumb to little finger.

Chain Bracelets (With Clasp)

  1. Measure wrist at the bone in mm.
  2. Add slack based on preference:
    • Snug: +10 mm
    • Classic (recommended): +15 mm
    • Loose/Stacking: +20 mm
SIZESLENGTH (INCHES)LENGTH (MM)
Extra Small (XS)5-5.512.7-14
Small (S)5.5-614-15.2
Medium (M)6-6.515.2-16.5
Large (L)6.5-716.5-17.8
Extra Large (XL)7-7.517.8-19
2X-Large (2XL)7.5-819-20.3
3X-Large (3XL)8-8.520.3-21.6

Necklace Length

Reference on an average neck (34–36 cm). Adjust for personal proportions and neckline.

Length (inches)Length (cm)
1641
1846
2251
2256
2461
2666
2871
3076

FAQs

  1. What if I’m between two sizes?
    Select the larger size. Wide bands and eternity profiles feel tighter.
  2. Do seasons affect fit?
    Yes. Heat and humidity can add up to half a size. Measure late in the day.
  3. Can you resize?
    Most solitaire and pavé rings: ±1 size. Full eternity rings: not resizable—order exact size.
  4. What is RiyaniKa’s default bracelet/bangle size?
    Size 17 unless you instruct otherwise at checkout.
  5. How accurate are these charts?
    They follow industry standards with typical manufacturing tolerances of ±0.1–0.2 mm.
  6. Can you help match sizes for a gift?
    Provide a photo of an existing ring on a flat ruler, or an inside-diameter reading. Concierge will confirm the closest size.

Support

Personal sizing assistance, printable sizer PDF, and bespoke fit checks available by request.
Email: contact@riyanikajewels.com • WhatsApp: +85291500032