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Yellow Old Mine Marquise Lab Grown Diamond Solitaire Ring
Yellow Old Mine Marquise Lab Grown Diamond Solitaire Ring
SKU:OJ6207
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
This design begins with an old mine cut marquise diamond, shaped long and softly pointed, carrying the soul of an antique marquise diamond. The center stone shows a warm tone as a yellow marquise diamond, sometimes called an old mine cut yellow diamond, giving depth that feels rooted in history. Crafted as a solitaire diamond engagement ring, the stone is secured in a 4 prong setting with a refined claw prong setting, allowing light to pass while keeping a clean outline. The profile follows a gentle V, inspired by chevron engagement rings, blending naturally into a v shaped engagement ring look that also echoes a wishbone ring style.
Built with a softly curved silhouette and elongated center profile, this marquise solitaire ring creates elegant finger coverage without feeling oversized on the hand. The 3 mm comfort band gives the ring a grounded presence while keeping the antique-inspired center balanced for everyday wear. Crafted with a yellow CVD or HPHT lab grown diamond in EF/VS quality, the design carries the rich appearance of vintage yellow diamond jewelry while offering a more modern and sustainable choice. The elongated marquise outline naturally draws the eye lengthwise across the finger, making the ring feel refined, structured, and easy to pair with contour or chevron wedding bands. Available with IGI certified center stone options, this ring is finished with Ouros craftsmanship, secure checkout, and customization support for metal tone, sizing, and engraving preferences.
Key Features
Diamond Cut: Marquise cut diamond with old mine influence
Chevron Inspired Silhouette: Gentle V-shaped ring profile designed to pair naturally with contour and wishbone wedding bands
Band Details: 3 mm band engagement ring, smooth and supportive
Setting Type: 4 prong setting engagement ring with claw prongs
Certified Lab Grown Diamond: Available with IGI certified EF/VS CVD or HPHT lab grown diamond options in multiple carat sizes
Diamond Type: Marquise cut lab grown diamond in yellow tone
Ouros Custom Jewelry Service: Crafted in sterling silver, solid gold, or platinum with engraving, sizing support, and trusted customer care
Metal Purity: 925 Sterling Silver, Solid Gold (10KT, 14KT, 18KT), 950 Platinum
Metal Tone: White, Yellow, Rose
Band Size: 3 mm width × 1.7mm depth (customization available)
Diamond Details
Diamond Details
| Shape | Old Mine Marquise Cut |
| Color/Clarity | Yellow_VS |
| Carat Weight | 0.50 To 3.00 CT (± 0.10 CT) |
Ring Details
| Ring Width | 3.00 MM [Customization Possible] |
| Ring 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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From our hands, to a piece made for yours.
Every OUROS piece begins with precision, craftsmanship, and a commitment to quality.
From the first CAD design to the final quality check, every detail is carefully considered and refined by skilled craftsmen.
Our jewelry passes through a meticulous process of casting, finishing, diamond setting, polishing, and inspection before it reaches you.
Made with intention. Finished with precision. Created to be cherished.
The Brilliance Behind Every Diamond
A diamond’s beauty begins long before it reaches your jewelry. At OUROS, every stone is thoughtfully created and refined for exceptional brilliance.
From its growth and precise cutting to the final polish, each stage is carefully considered to reveal the diamond’s unique character.
The result is a lab-grown diamond made with precision, finished with purpose, and created to be admired for years to come.
Stories Of Brilliance
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Kim Vaughan
Zamarade Y
Denise Cwik
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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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