Promise Marquise Cut Diamond Engagement Ring

Please contact us directly should you require a ring in a size that is not shown on the website.

Exhibiting perfect symmetry and exceptional scintillation, the Promise engagement ring in polished white gold features gracefully tapered baguette-cut side stones that draw the eye toward a magnificent marquise-cut diamond. Carefully selected by a member of the Fuster family for its elongated silhouette and tapering points, the centre stone embodies rare beauty and timeless refinement.

Offered in a range of cuts and carat weights, each diamond in our bridal collection is personally chosen to meet Fuster’s exacting standards for quality and provenance. Every bespoke setting is meticulously handcrafted by our master artisans to cradle and elevate the individual character of your selected stone.

Presented here with a total weight of 1.47 carats, this striking composition showcases a certified 1.18 carat marquise diamond — an elegant tribute to love in its most graceful form.

Each Fuster creation is unique. As a result, size, carat weight and stone qualities can vary slightly from one to another. For detailed information, please contact us or book an in-store appointment. 

Our ring size finder has been created to help you accurately identify your ring size. Please refer to our full-size chart.

• Size Chart

Our ring size finder has been created to help you accurately identify your ring size. Please refer to our full-size chart.

Your bespoke masterpiece is meticulously crafted in Switzerland by our master jewelers, with the utmost love and care, within three weeks. Upon completion, your jewelry will be shipped directly to you via overnight delivery, fully insured for your peace of mind.

Receive complimentary secured shipping and gift packing on all Fuster orders. You may return or exchange your Fuster creation within 30 days. For full terms and conditions please click here.