Lab-Created Blue Opal Cubic Zirconia Dangle Earrings in Sterling Silver, 4mm
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- Sterling silver
Lab-created opal- 30.4 × 11.15 mm
- October birthstone
Ships within 2–3 business days
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- Free shipping over $99
- 30-day returns & size exchanges
- Secure checkout
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The details
Blue lab-created opal cabochons glow beneath a line of sparkling Cubic Zirconia in these dangle earrings, set in bright sterling silver. The opal is impregnated, a treatment that is part of how the stone is finished. A rhodium finish gives the polished silver a crisp white shine that sets off the blue. Each earring hangs from a French wire that slips through the ear and lets the drop sway as you move. Wear them with a white shirt or a denim jacket, and you get a touch of color without fuss. A thoughtful pick for an October birthday.
Key Features
- Crafted in 925 sterling silver with a polished finish
- Finished with rhodium plating for lasting brilliance
- Set with lab-created opal
- Measures 11.15 mm wide and 30.4 mm long
- Approximate weight of 1.88 grams
- Stone treatment: impregnated
- Sold as a matching pair
Why You’ll Love It
- A cool blue glow that brightens a neutral outfit.
- Light movement that catches the eye without feeling heavy.
- Sparkle that works for a weekday and a night out.
- A pretty way to mark an October birthday.
Perfect For
Made for birthdays and everyday wear, these dangle earrings suit anyone who likes a little blue color with their sparkle. They also work as a gift for an October birthday or a self-purchase.
Size & fit
- Each earring measures about 30.4 × 11.15 mm.
- Fastens with french wire & hook backs.
- Sold as a pair.
Shipping & returns
- Free standard shipping on U.S. orders of $99 and above; under $99 the rate is shown at checkout.
- Orders ship within 2 to 3 business days in insured packaging, with tracking sent by email.
- Faster delivery: USPS Priority Mail and UPS options at checkout, where rates and delivery estimates are shown before you pay.
- Not the right piece, or the wrong size? Return it, or exchange it for another size, within 30 days of delivery. Items must be unworn and in their original condition and packaging.
- Covered by our One-Year Limited Jewelry Warranty against manufacturing defects.
Jewelry care
- Sterling silver darkens naturally with air; the rhodium finish slows this down. A silver polishing cloth brings the shine back, and an airtight pouch keeps it there.
- Opal is softer and more porous than most stones: wipe it with a soft, damp cloth and never soak it or use an ultrasonic cleaner.
- Put jewelry on last, after lotion and perfume, and take it off before showering, swimming or sleeping.
- Store each piece on its own in a soft pouch so it doesn't scratch.

The details
- Metal
- Sterling silver, polished
- Stones
- 2 lab-created round opals, 4 mm
- Size
- 30.4 × 11.15 mm
- Closure
- French Wire & Hook
- Weight
- 1.88 g
- Birthstone
- October
Show all specifications
- Stone color
- Phenomena
- Width
- 11.15 mm
- Made in
- China
- Item number
- BCX-ESS-CFVA
About opal
Known for its play of color, every opal is one of a kind, and it is the October birthstone.
Hardness 5.5 to 6.5 on the Mohs scale · Store separately and avoid knocks and heat; wipe with a soft damp cloth. Shop October birthstones