













Fernlight Black Onyx Ring
Ring Size Chart
Find your ring size with our international size guide. Our Azura Jewelry sizes match standard USA/CAN sizes. If you don't know your size but have a ring to measure, click "Measure Ring".
Measure your existing ring as described below.

Unsure if the size will fit?
No worries. We offer free domestic exchanges on all orders.
INSIDE DIAMETER | US/CAN | UK/AU | EUROPE | JAPAN |
---|---|---|---|---|
15 mm | 4 | H | 46.5 | 7 |
15.3 mm | 4.5 | I | 48 | 8 |
15.6 mm | 5 | J | 49.5 | 9 |
16.2 mm | 5.5 | K | 50.5 | 10 |
16.6 mm | 6 | L | 52 | 11 |
16.9 mm | 6.5 | M | 53 | 13 |
17.2 mm | 7 | N | 54.5 | 14 |
17.8 mm | 7.5 | O | 55.5 | 15 |
18.1 mm | 8 | P | 57 | 16 |
18.5 mm | 8.5 | Q | 58 | 17 |
19.1 mm | 9 | R | 59.5 | 18 |
19.4 mm | 9.5 | S | 61 | 19 |
19.7 mm | 10 | T | 62 | 20 |
20.4 mm | 10.5 | U | 63.5 | 22 |
20.7 mm | 11 | V | 64.5 | 23 |

1.Select an existing ring that fits the desired finger.
2.Measure the internal diameter of the ring (in mm).
3.Use the below chart to determine your ring size.
Internal Diameter (MM) | USA & Canada | Adjustable Rings |
---|---|---|
15 | 4 | S |
15.3 | 4.5 | S |
15.6 | 5 | S |
16.2 | 5.5 | S |
16.6 | 6 | M |
16.9 | 6.5 | M |
17.2 | 7 | M |
17.8 | 7.5 | M |
18.1 | 8 | M |
18.5 | 8.5 | L |
19.1 | 9 | L |
19.4 | 9.5 | L |
19.7 | 10 | L |
20.4 | 10.5 | L |
20.7 | 11 | L |
Still not sure how to measure your ring?
No worries, we got you covered!
Check Our Ring Sizer Page.
Our Labor Day Sale Ends In

One Year Warranty

New York Craftsmanship

Gift-wrapped Ready

Handpicked Gemstone
Description
The Fernlight Black Onyx Ring is a tribute to those who carry stillness like a shield and bloom in the places no one thought to look. Inspired by the forest and the magic of shadow, this ring embodies grace, resilience, and inner strength.
The oval black onyx helps absorb negativity and strengthen emotional balance, while the handcrafted leaf band echoes nature’s way of healing and becoming.
This ring honors the ones who don't chase light but hold their own. For the ones who grow in darkness and emerge unshaken.
✨ Details:
✦ 4x6mm natural oval-cut black onyx (center stone)
✦ White topaz (vermeil) or moissanite (solid gold) accent stones
✦ Available in 14K white gold vermeil (14K white gold plated over a sterling silver base) and 10K solid white gold
✦ Entwined fern leaf band
✦ Hypoallergenic and nickel-free
✦ Exclusive Azura Jewelry design
Designed for lovers of dark feminine jewelry, forest-inspired rings, and mystical fantasy aesthetics.
Gemstones
Black Onyx
Origin: Brazil
Birthstone: July
Meaning: Black onyx, a variety of chalcedony, has been historically mined in various countries worldwide. Its use in jewelry, amulets, seals, and talismans across different cultures speaks to its enduring significance and perceived metaphysical properties.
Powers: Revered for its deep black hue and smooth, polished appearance, this gemstone is often associated with protective energies, shielding the wearer from negative influences and absorbing negativity. It is thought to instill a sense of stability, strength, and self-control, aiding in decision-making and fostering resilience during challenging times. Emotionally, black onyx is believed to facilitate healing by absorbing and transforming negative energies, promoting emotional well-being, and releasing past traumas.
Measurements
Vermeil:
✦ Center Stone: 4x6mm oval Black Onyx
✦ Accent Stones: 1.3-1.7mm round White Topaz
✦ Bandwidth: 1.9-2.1mm
Solid Gold:
✦ Center Stone: 4x6mm oval Black Onyx
✦ Accent Stones: 1.3-1.7mm round Moissanite
✦ Bandwidth: 1.9-2.1mm
Complete the look:
Fernlight Black Onyx Ring
- CUSTOMERS ALSO BOUGHT
- Recently viewed
