Opal Jewelry: Iridescent Light and a Message to the Sea

Opal jewelry series with a magical glow; sustainable design that lives in harmony with the ocean and nature

Opal Reflecting Nature’s Brilliance

The Vision of SMUK’s Sustainable Series Born from “Less trash, more marine life”

The ocean covers about 70% of the Earth.
As members of this “blue planet,” we live with water and breathe together with nature.
At SMUK, from the small wish of “Less trash, more marine life (reduce waste, protect ocean life)”, we have continued to explore jewelry forms that harmonize with nature.

The embodiment of that wish is the Opal Jewellery Series introduced here.
Every piece is designed around the theme of the connection between nature and the sea while bringing out the maximum beauty of natural materials.

Among them, opal—like rainbow light captured inside—symbolizes “creativity,” “hope,” and “inner radiance.”
Its mysterious play-of-color, which shifts with the angle, seems to reflect each person’s multifaceted sensitivity and gently accompanies anyone who wants to live authentically.

Opal is also the birthstone for October, and is known as a guardian stone for Libra (Sept 23–Oct 23) and Scorpio (Oct 24–Nov 22), as well as for Gemini (May 21–Jun 21).
It is a stone that gently supports those who embrace change with flexibility and move forward with new inspiration.

The SMUK Opal Series is crafted with 925 sterling silver and materials considerate of metal allergies.
The colors of nature overlap with the wearer’s own sensibility to create a one-of-a-kind style.

Delicate natural opal drop earrings with 18K gold plating. Hypoallergenic.

Opal Bead Earrings (925 Silver / Rhodium Plating)

Opal Bead Earrings (925 Silver / 18K Gold Plating)

“Grains of light floating on the sea.”
Long earrings delicately strung with small natural opals for a fresh, transparent look.
The rainbow play-of-color that appears depending on the angle expresses the ephemerality of sunlight reflecting on the water’s surface.
Bring the beauty of nature directly to your ears—one of SMUK’s long-loved designs.

Flower-shaped 925 silver stud earrings with opal. Rhodium finish; hypoallergenic.

Flower Opal Stud Earrings

“Beautiful flowers need clean water.”
These earrings place an opal at the center of a small flower motif.
It carries the message that both flowers and people live thanks to the blessing of pure water.
A minimal piece that combines quiet gentleness with poised presence.

Round planet-motif opal stud earrings. Rhodium-plated 925 silver; hypoallergenic.

Planet necklace with natural opal showing rainbow play-of-color. 925 silver, rhodium plated; hypoallergenic.

Planet Opal Earrings (925 Silver / Rhodium Plating)

Planet Opal Earrings (925 Silver / 18K Gold Plating)

Planet Opal Necklace (925 Silver / Rhodium Plating)

“We are residents of a beautiful planet who live with the sea.”
These earrings wrap a dreamy opal in a round silver frame, like a tiny planet.
Inspired by the oceans that cover 70% of the Earth and the light reflected there, this simple yet meaningful piece was created to gently share the beauty of our planet through jewelry.

Hoop earrings with shimmering rainbow opals. Rhodium-plated 925 silver; hypoallergenic.

Opal Hoop Earrings

“Bring a sea-like nuance to your ears with flickering light and color.”
Hoop earrings that showcase opal’s strong play-of-color.
Depending on the angle, pink, blue, and green hues emerge and shimmer like light drifting under the sea.
The moderate size adds natural brightness and color around the face.

Delicate, airy silver necklace lined with opal and crystal charms. Rhodium plating; hypoallergenic.

Opal & Crystal Charm Necklace

“Rhythm and brilliance floating between sea and sky.”
Two opals and three crystal cross charms are arranged in balance on a delicate chain.
The five gently swaying charms express the rhythm of light and bubbles dancing on the ocean surface.
A design that balances lightness with refined presence, adding a small sparkle to everyday life.

Mystically shining natural opal necklace in 925 silver (rhodium plated). Hypoallergenic.

Round necklace with a single opal showing rainbow play-of-color. 925 silver, rhodium plated; simple and great for layering. Hypoallergenic.

Opal Single-Charm Necklace

Opal Solitaire Necklace

“A single stone that mirrors nature’s light.”
A refined, simple design featuring one ethereal opal at the center.
It brings the quiet beauty of nature’s rhythm to your neckline—a gentle choice for both special days and everyday wear.


This series is not jewelry that seeks to make a loud statement.
Rather, it was created with the wish to stay quietly yet steadfastly by your side—together with nature.

In everyday life, may you notice the beauty of fleeting light.
May the shimmer of water and inspiration from nature be softly added to your style.


If you’d like to learn more about the materials used in our jewelry,
please also read the articles below:
Pearl Collection | Elegant, Seasonal Glow
Choosing Silver 925 — Jewelry that Lives with the Power of Nature
What is Gold Vermeil (GOLD-VERMEIL)?
Does Silver 925 Tarnish? Causes, Oxidation & Proper Care
Metal Allergies & Jewelry Materials: A Practical Guide
Silver 925 vs. Surgical Steel — What’s the Difference?


If you’re interested in SMUK accessories,
please also check the product lists below:
Popular Items
Silver Collection
Gold Collection
All Products