















Monarch Butterfly Amethyst Opal Necklace
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.
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Handpicked Gemstone
Description
Add a touch of whimsy and wonder to your collection with this butterfly necklace—a nature-inspired, fairycore pendant that captures the beauty of transformation beneath a starlit sky.
This dreamy amethyst butterfly necklace features delicate marquise-cut amethyst gemstones arranged as wings, resting on a crescent moon adorned with twinkling stars and a glowing opal. Symbolizing change, clarity, and intuition, this piece combines the calming energy of amethyst with the dreamy, mystical radiance of opal—making it the perfect treasure for free spirits and forest fairies.
✨ Details:
✦ Natural marquise-cut amethyst stones
✦ Natural round opal accent stone
✦ 14K white gold vermeil (14K white gold plated over a sterling silver base)
✦ 16"+2" chain
✦ Hypoallergenic and nickel-free
✦ Exclusive Azura Jewelry design
Whether you're celebrating a February birthday, looking for a symbolic gift of transformation, or simply love fairycore jewelry, this enchanting piece is ideal for lovers of butterflies, amethyst necklaces, and nature-inspired jewelry.
Gemstones
Amethyst (Accent Stones: Ethiopian Opal and White Topaz)
Origin: Brazil
Birthstone: February
Meaning: The name “Amethyst” arrives from “Amethystos,” a Greek word meaning “not drunk” as in ancient times, people thought it kept drunkenness at bay.
Powers: Seen as a stone of royalty, this promotes a serious, sober mind. It wards off evil thoughts, accelerates intelligence, fights contagious diseases, and guards the wearer against aggression plus violence. Associated with crown chakra to provide shrewdness and prevent confused chain of thoughts.
Measurements
✦ Gemstones: 2.5mm round Ethiopian Opal
✦ Chain: 16"+2"
Complete the look:
Monarch Butterfly Amethyst Opal Necklace
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My sister loves it! She won't take it off.
Absolutely beautiful! Ordered on the first anniversary of my mother’s death in her memory. She lived butterflies.
I got this for a friends gift . It is really beautiful a bit smaller than expected but beautifully made , the details and the stones are on point .
Bought this for my daughter for Christmas! It was delivered in a timely manner and was in a nice jewelry box. I was very pleased with the whole experience!
We were delighted with our purchase the necklace is beautiful and suited my partner perfectly
