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Marquise Cut Halo Lab Grown Diamond Engagement Ring
Marquise Cut Halo Lab Grown Diamond Engagement Ring
SKU:OJ0072
A 0.50 CT Round Diamond Pendant, On Us With $999+
A 0.75 CT Round Diamond Pendant, On Us With $1,499+
A 1.00 CT Round Diamond Pendant, On Us With $1,999+
A 0.50 CT Round Diamond Pendant, On Us With $999+
A 0.75 CT Round Diamond Pendant, On Us With $1,499+
A 1.00 CT Round Diamond Pendant, On Us With $1,999+
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Product Description
Check out this marquise cut halo lab grown diamond engagement ring makes a striking yet graceful impression. At the center is a beautiful 3.00 carat marquise diamond, also called a navette diamond or eye shaped diamond, measuring about 15.50 × 7.50 mm. Its long shape naturally curves the finger, giving the ring an attractive look. Cut in a brilliant style, this fancy shaped diamond offers exceptional brilliance, fire, and sparkle. As a lab grown, man made diamond produced using CVD or HPHT technology, it is an ethical, sustainable, and conflict free center stone with lasting durability.
A shimmering halo of round brilliant accent diamonds surrounds the marquise center, totaling roughly 0.40 TCW in EF color and VS clarity. The halo setting follows the round cut of the marquise cut, improving sparkle while visually increasing the stone’s size. A delicate pave band extends halfway down the shank, creating a smooth, balanced flow with refined symmetry. The prong and hidden halo basket setting gently lifts the diamond to capture light from all angles, offering a timeless bridal look that feels both classic and modern.
This luxury diamond engagement ring is handcrafted and available in 925 sterling silver, 10K, 14K, or 18K solid gold, and 950 platinum, in white, yellow, or rose tones. Made to order and fully customizable for ring size, metal choice, and engraving, it’s perfect as a proposal ring, wedding ring, anniversary gift, promise ring, or fine jewelry gift. Each piece includes an authentic jewelry certificate with optional IGI certification, secure US checkout, and gift-ready presentation, making it a confident and meaningful choice for a custom engagement ring that lasts a lifetime.
Key Features:
Marquise Silhouette: The Classic marquise cut engagement ring is designed to make the finger look longer and to create an outstanding statement ring.
Halo Engagement Ring Style: This refined halo engagement ring features micro pave accent diamonds that provide high sparkle and a luxurious look.
Band & Comfort Details: The slim pave band has a smooth comfort fit profile, making it perfect for everyday wear while keeping a delicate, feminine feel.
Ethical Lab Diamond Choice: This ring includes an eco friendly, conflict free lab grown diamond made with CVD/HPHT technology. It’s ideal for modern buyers looking for sustainable fine jewelry.
Customization & Trust: This custom made engagement ring offers resizing, metal upgrades, optional IGI certification, secure US checkout, and gift-ready packaging for proposals or anniversaries.
Diamond Details
|| 𝐍𝐨𝐭𝐞: 𝐓𝐡𝐢𝐬 𝐣𝐞𝐰𝐞𝐥𝐫𝐲 𝐟𝐞𝐚𝐭𝐮𝐫𝐞𝐬 𝐈𝐆𝐈 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐝𝐢𝐚𝐦𝐨𝐧𝐝𝐬 𝐨𝐟 𝟏.𝟎𝟎 𝐂𝐓 𝐚𝐧𝐝 𝐚𝐛𝐨𝐯𝐞. ||
Diamond Details
| Shape | Marquise Cut |
| Color/Clarity | EF_VS |
| Carat Weight | 3.00 CT (± 0.10 CT) |
| Dimension | 15.50*7.50 MM (± 0.10 MM) |
Diamond Details
| Shape | Round Cut |
| Color/Clarity | EF_VS |
| Carat Weight | 0.40 TCW (± 0.10 CT) |
| Dimension | 0.90 To 1.30 MM (± 0.10 MM) |
Ring Details
| Band Width | 1.70 MM [Customization Possible] |
| Band Depth | 1.70 MM [Customization Possible] |
| Type | Lab Grown Diamond |
| Metal Purity |
Silver (925,935), Solid Gold (10KT, 14KT, 18KT); 950 Platinum |
| Metal Tone |
White, Yellow, Rose |
| Stamp/Hallmark | Yes |
| Jewelry Certificate | Ouros Brand Authentic Jewelry Certificate - Contact Us for Your Certificate |
MAKING PROCESS
From the first order to the final quality check, every piece passes through a carefully controlled craftsmanship journey.
Order Received
Order details are reviewed and production specifications are confirmed.
CAD Model
A precise 3D model is created according to the approved design.
Stone Making
Diamonds are prepared and selected to match the design specifications.
Wax Model
The CAD design is transformed into a detailed wax model.
Casting
The wax model is cast in the selected metal to form the jewelry.
Filing
The cast piece is refined and corrected for a clean, precise structure.
Pre-Polish
The surface is smoothed and prepared for stone setting.
Setting
The surface is smoothed and prepared for stone setting.
Final Polish
The piece is polished to achieve its final smooth and refined finish.
Quality Check
Every detail is inspected to ensure our quality standards are met.
Shipping
The approved piece is securely packed and prepared for delivery.
Shipping Policy
International Shipping
We offer international shipping, which takes 8–14 business days after dispatch.
NYC Office Pickup
if this item is available at our NYC office. overnight U.S. shipping can be arranged upon request for an additional fee.
Insured & Trackable
All orders are fully insured and trackable, with signature confirmation available upon request.
Shipping Questions
For any shipping-related questions, please refer to our Shipping Policy or contact our customer support team.
RETURN POLICY
Return Window
You may request a return within 30 days of delivery.
Manufacturing Defects
If a manufacturing defect is identified within 30 days of delivery, we're happy to offer a free repair.
Return Eligibility
Returns based on personal preference after delivery are not eligible. All returns must be pre-approved before being sent back.
After 30 Days
For concerns reported after 30 days, repair services may be available at an additional charge.
Contact & Assistance
For assistance with your return or repair request, please contact contact@ourosjewels.com.




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JM® Care Plan
Care That Keeps Every Detail Brilliant :
Keep your jewelry looking its best with dedicated care for cleaning, polishing, resizing, repairs, and stone replacement — so every piece stays beautiful for years to come.

JM® Care Plan
Care That Keeps Every Detail Brilliant :
Keep your jewelry looking its best with dedicated care for cleaning, polishing, resizing, repairs, and stone replacement — so every piece stays beautiful for years to come.
JM® Care Plan
Care That Keeps Every Detail Brilliant :
Keep your jewelry looking its best with dedicated care for cleaning, polishing, resizing, repairs, and stone replacement — so every piece stays beautiful for years to come.
Our Services
Get personalized engagement ring guidance from our experts, both in person and online.
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