Hidden Halo Engagement Ring with Marquise & Round Side Diamonds | Bilbao Horizon

Discover a breathtaking horizon of modern luxury and rhythmic elegance with the Bilbao Horizon Lab Grown Diamond Engagement Ring by Jewel Nests. Inspired by the striking architectural innovation and sweeping curves of northern Spain, this premium design reimagines traditional multi-stone silhouettes into a captivating contemporary masterpiece.

The defining characteristic of this piece is its masterfully curated alternating marquise and round side stone band. The slender 2.0 mm shank is set with a fluid sequence of horizontally nestled marquise diamonds paired with brilliant round accents that cover exactly 50% of the band. This scalloped eternity-inspired profile rises gracefully to meet a minimalist 3-prong setting holding a magnificent centerpiece. Tucked neatly beneath the main crown lies its final hidden luxury—a delicate hidden halo that catches the light from every secret side angle.

Center Stone Details
Diamond Shape: Convertible & Customizable (Selection available from our premium inventory; Pear Cut pictured)

Carat Weight Variations: Available from 1.0 CT to 4.0 Carats (Currently listed in 2.0 CT version)

Quality Grade: VS - VVS Clarity, E - F Color

Certification: IGI Certified

Setting Style: Sleek 3-Prong Setting with a Pavé Hidden Halo Collar

Side Stone & Band Details
Side Stone Type: Marquise Cut & Round Brilliant (Lab-Grown)

Total Carat Weight: Varies from 0.50 to 0.60 Carats (Combined total for hidden halo and accent band)

Quality Grade: VS - VVS Clarity, E - F Color

Band Width: 2.0 mm

Band Coverage: 50% Half-Eternity Alternating Marquise and Round Shank

Band Style: Regular Polished Shank Base

Finish: High-Polish Mirror Finish

Product Highlights
Rhythmic Alternating Accent Band: The Bilbao Horizon moves beyond traditional uniform pavé by combining marquise-cut side stones with round brilliant diamonds. This unique alternating design creates a beautiful scalloped texture along the hand that maximizes light performance.

Enchanting Hidden Halo Details: A delicate ribbon of hand-set micro-pavé diamonds circles seamlessly beneath the gallery bar. This delivers an intimate layer of side-view brilliance without altering the clean frontal silhouette of your solitaire.

Minimalist Three-Prong Security: Tailored perfectly for fancy teardrop silhouettes like the pear cut, the 3-claw layout contours the stone precisely. A dedicated chevron prong caps the vulnerable top tip to guard against daily impacts while keeping the stone's dramatic lines entirely unobstructed.

Half-Eternity Diamond Coverage: The premium accent diamonds cover exactly 50% of the band's circumference. This ensures maximum visibility from the top view while leaving a smooth gold resizing bar at the base for an exceptionally comfortable fit.

Proportional Accent Scaling: Our studio ensures that as you scale your center diamond choice from 1.0 up to 4.0 carats, the accent side stones and hidden halo automatically adjust in size to preserve the ring's perfect visual harmony.

Ethical Fine Luxury: Crafted using exclusively premium IGI-certified lab-grown diamonds, providing a completely sustainable, conflict-free, and transparent choice for your milestone commitment.

Customization Note: We can customize the metal specifications, adjust the prong layout, or adapt the head profile to accommodate alternative center stone configurations such as oval, marquise, radiant, or cushion cuts. Contact us for bespoke engagement ring modifications.

Premium Metal Options: Available in Platinum and 14K & 18K Gold (Yellow, White, and Rose). 10K Gold is available upon request for a custom quote.

Handcrafted in Canada: Each Jewel Nests ring is a proudly handcrafted product, finished with precision in our Toronto studio using premium gold to ensure a luxurious comfort-fit interior. We offer worldwide shipping to deliver our designs right to your door.

Why Choose Jewel Nests? We believe in luxury that aligns with your values. Handcrafted locally in Canada with premium sustainable materials, we pair exceptional regional artistry with a global purpose. To honor your unique love story, Jewel Nests proudly serves one meal to a child in need for every single order placed.

We offer free complimentary express shipping worldwide, with delivery typically within 1–8 business days, depending on the destination. Every order is securely packed and fully insured for peace of mind.

For faster delivery, we also provide paid express priority overnight shipping upon request, with delivery in 1–2 business days. Please contact our team directly to arrange priority shipping and we’ll ensure your order is prioritized accordingly.

Jewel Nests offers a 30-day return and exchange policy for eligible items. Products must be unworn, unused, and returned in original packaging with certificates. We provide a no restocking fee and no questions asked process for eligible returns. Custom, resized, or engraved pieces may not be eligible for return, but we always aim to ensure a smooth and supportive experience for every customer.