Experience the perfect fusion of romantic curves and elongated elegance with the Lumi Lab Grown Diamond Solitaire Necklace by Jewel Nests. Featuring a sophisticated halo-style pendant and a diamond-studded hook, this piece showcases a magnificent elongated cushion cut center stone. Whether worn as a high-glamour everyday signature piece, a breathtaking bridal accessory, or a landmark anniversary gift, Lumi offers a unique, fiery silhouette that resonates with sophistication for customers worldwide.

Product Highlights
The Perfect Centerpiece: Features a hand-selected elongated cushion cut lab-grown diamond. This rare silhouette provides the soft, romantic edges of a cushion cut with the flattering, neck-elongating length of an oval or emerald cut, resulting in a unique and powerful "crushed ice" brilliance.

Radiant Halo & Diamond-Set Hook: The elongated cushion is encircled by a delicate halo of round brilliant cut lab-grown diamonds, which flows seamlessly into a diamond-studded decorative hook.

Accent Carat Weight: Combined total of 0.30–0.50 TCW for the halo and hook diamonds, scaled precisely to your chosen center stone for maximum impact.

IGI Certified Quality: For your peace of mind and investment security, all center stones 1.0 CT and above come with an official IGI Certificate, verifying their premium grading.

Ethical Brilliance & Scale: Available in a wide range of center stone variations to suit your desired level of impact:

Center Stone Variations: Available from 0.50 CT up to a grand 3.0 CT.

Featured Variation: Please note that the primary specifications and imagery shown for this listing represent the stunning 1.0 CT elongated cushion variation.

Superior Diamond Quality: Every stone is exceptionally graded, featuring a stunning E/F color and VVS–VS clarity for unmatched internal purity and brilliance.

Customizable Chain Design: Accompanied by a delicate 1.0 mm width chain, available in lengths of 16, 17, 18, 19, or 20 inches to ensure the perfect fit for any neckline.

Premium Metal Options: Handcrafted in your choice of 14K or 18K Solid Gold (Available in Yellow, White, and Rose Gold).

Customization Note: If you would like to request 10K gold or any other specific diamond or metal customization, we are happy to create a custom piece for you! Please contact us before placing your order to discuss your vision.

Why Choose Jewel Nests?
Each Jewel Nests piece is a proudly Made in Canada product, handcrafted with precision and care in Toronto. We offer worldwide shipping, ensuring that our sustainable lab diamond jewelry can be enjoyed across the globe. Reflecting the best in modern craftsmanship, the Lumi halo necklace is a testament to lasting style, ethical beauty, and high-quality Canadian artistry.

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.