Rainbow Light & a Wish for the Sea — Opal Guide

STONE GUIDE

What Is Opal|Play-of-Color, Meaning & October Birthstone

COLOR · MEANING · OCTOBER BIRTHSTONE

Opal jewellery rainbow play-of-color Ethiopian opal Silver 925 SMUK

A natural opal whose rainbow play-of-color shifts with every angle. From the secret of its glow to the stories it has carried, here it is — together with the collection.

01

What Is Opal

About the Stone

Opal is a natural stone of silica and water. Minute silica spheres scatter light, creating the rainbow glow known as play-of-color. SMUK chose natural Ethiopian opal, born of volcanic earth — untreated and unheated.

Ethiopian opal origin unheated play-of-color natural stone SMUK

No two stones are alike, each shifting color by the angle. At Mohs 5.5–6.5 and holding water within, it is a delicate stone — please wear it gently.

02

History & Legend

History & Legend

In ancient Rome it was called opalus (precious stone), prized as the most valuable gem for holding every color at once. A symbol of hope and purity, it was passed down through medieval Europe as a charm for good fortune.

03

Meaning & Symbolism

Meaning & Symbolism

Opal has long symbolized creativity, hope, and inner light. Its ever-shifting color stays close to those who embrace change and look ahead.

Opal meaning creativity hope inner light play-of-color SMUK
CreativityHopeInner LightSensitivityChange & Renewal
04

Birthstone & Zodiac

Birthstone & Zodiac

Opal is October's birthstone, also linked to Libra and Scorpio — a chosen gift for those born in October.

Collection

The SMUK Opal Collection

Born from our wish, "Less trash, more marine life." Natural Ethiopian opal, set on Italian Silver 925 with rhodium plating.

Makuake Result

On Makuake, the project closed successfully, far surpassing its goal. Thank you for all the support. The pieces are now available on our official site.

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Necklace | New · 3 Cuts
Opal round-cut necklace approx 7mm Ethiopian opal Silver 925 SMUK

Round Necklace

approx. 7mm・1.0ct — a full-moon roundness

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Opal oval-cut necklace approx 9x7mm Ethiopian opal Silver 925 SMUK

Oval Necklace

approx. 9×7mm・1.2ct — the series' largest stone

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Opal pear-shape necklace approx 8x6mm Ethiopian opal Silver 925 SMUK

Pear Necklace

approx. 8×6mm・0.8ct — a soft teardrop line

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Earrings | New · 2 Cuts
Opal round-cut earrings approx 7mm Ethiopian opal Silver 925 SMUK

Round Earrings

approx. 7mm・1.0ct — round drops of light

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Opal oval-cut earrings approx 9x7mm Ethiopian opal Silver 925 SMUK

Oval Earrings

approx. 9×7mm・1.2ct — large play-of-color that sways

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Necklace | Signature Series
Oval opal necklace approx 8x6mm Silver 925 SMUK

Oval Necklace

approx. 8×6mm・0.72ct — the signature large cut

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Round opal necklace approx 5mm Silver 925 SMUK

Round Necklace

approx. 5mm・0.32ct — a daily roundness

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Marquise opal necklace approx 8x4mm Silver 925 SMUK

Marquise Necklace

approx. 8×4mm・0.54ct — an elongated, refined look

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The signature series was born from a past Makuake project. Thank you for all the support.

Earrings & More
Opal hoop earrings Silver 925 Rhodium SMUK

Opal Hoop Earrings

Silver 925 · Rhodium — light and color on the ear

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Opal crystal charm necklace Silver 925 Rhodium SMUK

Charm Necklace

Silver 925 · Rhodium — rhythm and shine on sea and sky

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Not to make a statement, but to stay quietly by your side, together with nature. May SMUK's opal add a small light to your everyday.


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