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Luxe Sia Diamond Open Ring (1/5 ct. tw.)

This petite diamond open ring features scalloped pavé diamonds in elegantly sculpted prongs that extend three quarters of the way around the band. The 4mm wide open design allows the ring to sit flush with many engagement ring styles. ... Read More

Metal: Platinum


Size Guide
  • This ring cannot be resized

Order now for delivery by Tuesday, October 18.

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Ring Information

950 Platinum
Average width:
1.4 mm

Accent Gemstones

Min. carat total weight Min. carat total weight:
Scalloped Pavé
Average ColorAverage Color:
Average ClarityAverage Clarity:

Made Just for You

At our San Francisco design studio, our team designs every ring to delight you, from the first time you see it and every day after. We carefully consider the entire piece—obsessing over comfort, quality, and durability so you can cherish it for a lifetime.

Our metals are created from existing gold jewelry and excess production metal, sourced from refiners that have been audited by the Responsible Mining Initiative and London Bullion Market Association.
We present each Brilliant Earth design in a jewelry box crafted of wood from Forest Stewardship Council (FSC) certified forests—trees that are managed and harvested in a manner that protects and maintains natural communities and respects the rights of workers and indigenous people.
As part of our commitment to protecting the planet, Brilliant Earth is Carbonfree®. We calculated our carbon footprint by assessing the direct emissions of our energy use, including packaging, shipping, and employee travel and commuting. Then we partnered with to offset our carbon emissions by contributing to Tropical Rainforest Conservation in Brazil. We will continue identifying ways to reduce our footprint and offsetting emissions that we cannot eliminate.
March 21, 2022
Chris's fiancé
Perfect with Aimee

This open ring is perfect matched with the Aimee solitaire! I wanted a simple wedding band to go with my Aimee solitaire and this sits flush, allowing the low profile prongs of the solitaire to fit in the opening. ...Read More

January 21, 2022
U fiance
Perfect for my oval

This band is absolutely perfect for the lower laying oval engagement ring! It sits right against it and will sauter together perfectly ...Read More

September 8, 2021
Replacement for my lost seeing set
Fantastic Fit for Imogen Oval stone Ring

I wanted a flush fit band for the Imogen Engagement ring and the Sia band fit perfectly. It is very dainty, but enhances the overall set. ...Read More

As Seen On You

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Order Details

*Estimated delivery if ordered by 2 PM PT tomorrow

Free FedEx Shipping

Free 30 Day Returns

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.

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Wedding Band in box