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Shown With 6.5mm Round Moissanite

 
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Shown With Diamond

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Shown With 6.5mm Round Moissanite on Size 6 Hand

Moissanite Sonora Lab Diamond Ring in Platinum

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Platinum is not available for this item, please select another metal.

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This classic engagement ring features cathedral archways set with French pave diamond accents throughout the design.

  • The 1.6mm band creates refined proportions that support the cathedral architecture and French pave framework.
  • A four-prong setting secures the center stone at the lofted peak of the cathedral, drawing the eye upward.
  • 12 round diamonds in a pave setting (0.11 ct. tw.) line the cathedral archways, adding sparkle along the sides.
  • Cathedral archways raise the setting above the band, creating architectural detail and allowing light to reach the diamonds from multiple angles.
  • The pave-set diamonds along the archways create a smooth flow of light, giving the accent stones a unified sparkle.
  • A low-profile design pairs with the cathedral architecture to create balanced visual interest while keeping the ring comfortable for everyday wear.

Ring Information

  • Style: BE110LC-MO6.5RD1-PT
  • Metal: 950 Platinum
  • Prong metal: Platinum
  • Width: 1.6 mm

Accent Gemstones

  • Type: Lab grown diamond
  • Shape: Round shape
  • Number: 12
  • Min. carat total weight: 0.11 Min. carat total weight
  • Setting: French pavé
  • Average Color: F/G Average Color
  • Average Clarity: SI1 Average Clarity
  • Origin: Canada/Botswana

Center Gemstone

  • Type: Moissanite
  • ShapeShape: Round gray info icon
  • Dimensions: 6.5 x 6.5 mm Dimensions
  • Color: Colorless Color
  • Clarity: Eye Clean Clarity
  • Origin: Lab Grown
  • Treatment: View
  • Easy monthly payments with Affirm. From 0% APR financing. Up to 36 months. Subject to credit approval.
  • Special 12 month financing options available with Wells Fargo, subject to credit approval.
  • Layaway options also available.
  • Learn More

Schedule a personalized, in-person visit to discover the perfect ethical origin fine jewelry piece for your milestone moments.

Why you'll love it

Low Profile

A setting that makes for a comfortable, snag-free wear.

Extra Secure

A cathedral setting secures the center stone with additional support.

Mixed Metal

A two-tone setting that accentuates the center gem's brilliance and visual impact.

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Why you'll love it

Gemstone ring on wooden jewelry box.

Order Details

Reviews

4.9
(46)

What customers are saying

Customers describe this as their dream engagement ring, with many saying the delicate band and brilliant sparkle exceed what they expected and draw constant compliments. The thin profile stacks beautifully with a wedding band, and wearers love how the diamonds catch light from every angle. Many say it is exactly what they were looking for, with several describing it as more stunning in person than online.

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Josh Joseph Reviewed Sonora Diamond Ring
8/25/2025

Great value for money. Ring looks great. ...Read More

Carolina's fiancé Reviewed Sonora Diamond Ring
8/24/2024

My Wife Loved the Ring! 😍

My wife & I have been married for a couple of years but I didn't get her an engagement ring until recently. During a photo shoot we booked, I surprised her with an engagement ring from Brilliant Earth & she loved it! I was initially nervous because I didn't know if she would like the style & diamond size but she and her friends couldn't stop talking about it. The style is elegant, the diamond is remarkable, and the fit is perfect. We couldn't be happier! #sweepstakes ...Read More

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Cody Reviewed Sonora Diamond Ring
6/12/2024

Absolutely beautiful

Love it!! ...Read More

The Brilliant Earth Difference

Our team designs our collections with precision and skill at our San Francisco studio. We know it’s the details that matter most — so we obsess over each one.
Our dedication to quality craftsmanship begins with our responsibly sourced precious metals.
From collections that empower artisanal female miners to fair-trade gems, our world class experts have been carefully sourcing exceptional gemstones for twenty years.
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award-winning
artistry

award-winning
artistry

Our team designs our collections with precision and skill at our San Francisco studio. We know it’s the details that matter most — so we obsess over each one.

image description

Unmatched
materials & craftsmanship

Unmatched
materials & craftsmanship

Our dedication to quality craftsmanship begins with our responsibly sourced precious metals.

image description

industry-leading
standards

industry-leading
standards

From collections that empower artisanal female miners to fair-trade gems, our world class experts have been carefully sourcing exceptional gemstones for twenty years.

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Last updated on August 7, 2026