A 4 × 8 mm lab-grown peacock fire opal, cut as a marquise cabochon and set north–south between two blackened scrolls. A crown of marquise and round cubic zirconia fans above and below the stone, three simulated teal sapphires cluster at each shoulder, and the whole composition sits on a slim 1.7 mm band of solid sterling silver in a black ruthenium finish.
Lab-Grown Peacock Fire Opal
Marquise Cabochon, 4 × 8 mm
Black Ruthenium Finish
Scrollwork Shoulders
Solid 925 Sterling Silver
Sizes 4–11
The Design
The shoulders carry this ring. Instead of a straight shank running into the setting, two blackened volutes scroll away from the center like wrought ironwork, each holding a single round accent where the curve tightens. Three round teal stones cluster at the outer edge of each scroll, and a narrow crown of marquise and round stones fans above and below the center stone.
Nothing in the silhouette is round. The ring reads as a single vertical axis, with a long marquise center and pointed crowns at either end, which is why a 4 × 8 mm stone wears larger than its measurements suggest. If you are looking past the plain solitaire, our guides to fantasy engagement rings and non-traditional engagement rings cover the wider field.
The Peacock Fire Opal
The center stone is lab-grown opal in the peacock colorway: a deep blue body with patches of bright green and teal that shift as the stone turns. It is cut as a smooth domed cabochon, which is how opal shows its play of color, and no two stones carry the same pattern.
It is set north–south so its length runs along the finger, the most elongating orientation, as our guide to marquise engagement rings sets out. Opal is the October birthstone. Our guides to fire opal engagement rings and opal engagement rings cover types, durability and care, and opal meaning covers what each color stands for.
Metal and Stones
The ring is solid 925 sterling silver throughout with a black ruthenium finish, a platinum-group metal that settles to a deep gunmetal rather than a flat black. The darkened metal drops away visually and leaves the opal as the main source of color.
Six round simulated teal sapphires sit three to a shoulder and pick up the green in the opal. They are simulated stones, not natural or lab-grown sapphire. The white accents, marquise and round in the crown at each end plus one round in each scroll, are cubic zirconia, not diamond.
Part of our opal engagement rings and gothic engagement rings collections, alongside the rest of our black ruthenium jewelry and October birthstone jewelry. The October birthstone guide has more on opal as a gift.
Specifications
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Center stone: Lab-grown peacock fire opal, marquise cabochon, 4 × 8 mm, north–south
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Side stones: Six round simulated teal sapphires, three per shoulder
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Accent stones: Marquise and round cubic zirconia: a crown at each end, one in each scroll
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Metal: Solid 925 sterling silver, black ruthenium finish
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Band width: 1.7 mm
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Setting: Prong-set cluster with scrolled shoulders
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Hardness: Opal, 5.5 to 6.5 on the Mohs scale
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Sizes: 4 to 11, including half sizes
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Engraving: Available, up to 16 characters
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Presentation: Free luxury velvet jewelry box
Care
Opal is softer than most ring stones, 5.5 to 6.5 on the Mohs scale, so it asks for a little care. Take the ring off for the gym, gardening and heavy cleaning. Clean with warm water, mild soap and a soft cloth. Avoid ultrasonic cleaners, steam and household chemicals, which can harm the opal and dull the ruthenium finish, and store the ring in its velvet box rather than loose.
Frequently Asked Questions
Is the opal natural?
No. It is lab-grown opal. It shows a true play of color, with a brighter and more even pattern than most mined opal at this price.
What colors does the opal show?
A deep blue body with flashes of bright green and teal, the peacock colorway. The pattern shifts as the stone moves, and every stone is slightly different.
Will my stone look exactly like the photos?
It will be very close in color, but the pattern of flashes is unique to each opal, so no two rings are identical.
Are the teal stones real sapphires?
No. They are simulated teal sapphires, chosen to match the green in the opal. They are not natural or lab-grown sapphire.
Are the white accent stones diamonds?
No. They are cubic zirconia, a simulated diamond, in the crown at each end and in each scroll.
How large is the center stone?
4 × 8 mm, set north–south so the length runs along the finger. The narrow marquise plus the pointed crowns at each end make the ring wear larger than the measurement suggests.
Is opal durable enough for an engagement ring?
Opal is 5.5 to 6.5 on the Mohs scale, softer than sapphire or spinel. It works as an engagement ring with sensible care: remove it for manual work and avoid hard knocks.
Is opal a birthstone?
Yes. Opal is the October birthstone.
How dark is the black ruthenium finish?
Ruthenium finishes to a deep gunmetal rather than a flat jet black. The metal recedes and leaves the opal as the main color.
What is the ring made of?
Solid 925 sterling silver throughout, with a black ruthenium finish. No brass or base metal.
Does this ring come with other stones?
Yes. The same Artemisia design is also made with a natural citrine center. Use the gemstone swatches on this page to switch between them.
What sizes are available?
Sizes 4 through 11, including every half size.
Will a wedding band sit flush against it?
Not entirely. The crown at the lower end of the center stone leaves a gap against a straight band. A contour or chevron band will nest more closely.
Can I have it engraved?
Yes. Engraving is available on the inner band, up to 16 characters, and can be added as an option at checkout.
