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3 Stone Old Mine Cushion Cut Diamond Engagement Ring
3 Stone Old Mine Cushion Cut Diamond Engagement Ring
SKU:OJGJ2759
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+
A Special Offer Awaits You
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Product Description
This beautiful three stone lab grown diamond engagement ring represents love, commitment, and a journey through life. It features the classic past present future ring design with an elongated old mine cushion cut lab diamond in the middle. The cushion cut provides a great mix of sparkle and gentle vintage style, giving fire and clarity from all angles.
Two sleek tapered baguette diamonds on either side of the center stone are set to enhance the ring's symmetry and shine. These side stones add a graceful architectural touch, making this 3 stone ring a standout trilogy diamond ring for latest brides who appreciate clean lines and luxury design. The man made diamonds are secured in a durable double claw prong setting for both beauty and long-lasting protection.
Featuring a smooth plain band, this diamond ring with three stones has a minimalist yet striking profile that goes well with wedding ring. Made from ethically sourced lab created diamonds, this three stone ring brings you the same glow, durability, and shine as mined diamonds while helping to support a sustainable future. Whether it is chosen as an engagement ring or an anniversary gift or even just something inspired by heirlooms meant to last for generations; this trinity diamond ring can do all that.
Key Features
Ring Style: Classic three stone engagement ring representing the past, present, and future
Center Stone: Elongated old mine cushion cut lab made diamond with vintage inspired shine
Side Stones: Tapered baguette lab grown diamonds for added symmetry and beauty
Diamond Type: Ethically sourced lab created diamonds with exceptional fire and durability
Setting Style: Secure double claw prong setting designed for beauty and long lasting wear
Band Style: Smooth plain band with a polished, minimalist finish
Design Appeal: A graceful blend of antique charm and latest clean lines
Occasion: Ideal for engagements ring, anniversaries ring, or heirloom inspired gifting
Customization: Available in various metal types, diamond sizes, and ring sizes
Ouros Brand Authentic Jewelry Certificate – Ensures authenticity and premium craftsmanship
Diamond Details
|| 𝐍𝐨𝐭𝐞: 𝐓𝐡𝐢𝐬 𝐣𝐞𝐰𝐞𝐥𝐫𝐲 𝐟𝐞𝐚𝐭𝐮𝐫𝐞𝐬 𝐈𝐆𝐈 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐝𝐢𝐚𝐦𝐨𝐧𝐝𝐬 𝐨𝐟 𝟏.𝟎𝟎 𝐂𝐓 𝐚𝐧𝐝 𝐚𝐛𝐨𝐯𝐞. ||
Diamond Details
| Shape | Old Mine Cushion Cut |
| Color/Clarity | EF_VS |
| Carat Weight | 2.10 CT (± 0.10 CT) |
| Dimension | 8.75*6.50 MM (± 0.05 MM) |
Diamond Details
| Shape | Tapered Baguette Cut |
| Color/Clarity | EF_VS |
| Carat Weight | 0.50 TCW (± 0.10 CT) |
| Dimension | 6.00*3.00*1.90 MM (± 0.10 MM) |
Ring Details
| Ring Width | 1.80 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.




Custom Diamond Request Form
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
Trusted Worldwide by 25,000+ Happy Clients
Kim Vaughan
Zamarade Y
Denise Cwik
Kimberly Arcoleo
chris crawford
Merry Gibson
Kelly V
C. Lor

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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