$10 off $150+ · code WELCOME10
$10 off your first order of $150+ with code WELCOME10
Complimentary gift note
Complimentary gift note with every order
$10 off $150+ · code WELCOME10
$10 off your first order of $150+ with code WELCOME10
Complimentary gift note
Complimentary gift note with every order
Some promises deserve more than a delicate line of diamonds.
The Serment Éternel is a 14K yellow gold lab-grown baguette diamond anniversary band designed with unmistakable presence. A precise row of straight baguette diamonds creates a clean, architectural line across the finger, bringing together the warmth of polished yellow gold and the controlled brilliance of an elongated step cut.
The diamonds total an impressive 2 1/4 carats and are selected in G-H color and VS2 clarity. Each 5 × 2.5 mm baguette is secured with claw prongs that preserve the ring’s refined geometry while allowing the diamonds to remain the focus.
Unlike a traditional round brilliant diamond band, the straight baguette arrangement reflects light in broader, mirror-like flashes. The result feels modern and composed rather than overly ornate, making this ring equally striking as an anniversary band, contemporary wedding band or standalone statement diamond ring.
With a substantial 5.2 mm top width and a smooth comfort-fit interior, Serment Éternel was created to mark the moments that are meant to last.
Insured Shipping & Secure Delivery
A little care keeps your Oxfordum pieces looking their best. Follow these simple guidelines.
Plating (such as gold or rhodium plating) is a thin surface layer and wears gradually with use. Keep plated pieces away from water, perfume and friction, and check each product page for its specific care notes.
Questions about a specific piece? Contact us — we're happy to help.
We ship to the United States and Canada. Orders are prepared and dispatched within 1–3 business days, and delivery typically takes 3–7 business days within the US or 5–10 business days to Canada after dispatch. Canadian orders may be subject to customs duties or brokerage fees on delivery. Once dispatched, you'll receive a confirmation email with your tracking number.
Because we work with specialist suppliers, some orders may arrive in separate packages, each with its own tracking number. Every order ships fully insured.
We accept returns within 30 days of delivery — including sale items — for pieces in their original, unworn condition and original packaging. Items marked Final Sale on the product page and personalized pieces can't be returned unless they arrive defective or damaged.
To start a return, contact us and we'll send you the return address and instructions. Return shipping is the customer's responsibility, and original shipping charges are non-refundable, unless the item arrived defective, damaged or incorrect. If something is wrong with your order, please let us know within 48 hours of delivery.
Read our full Return & Refund Policy and Shipping Policy.
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