• 3.10 CT Old Mine Cushion Cut Loose Diamond Loose
  • 3.10 CT Old Mine Cushion Cut Loose Diamond Loose
  • 3.10 CT Old Mine Cushion Cut Loose Diamond Loose
  • 3.10 CT Old Mine Cushion Cut Loose Diamond Loose
  • 3.10 CT Old Mine Cushion Cut Loose Diamond Loose
  • 3.10 CT Old Mine Cushion Cut Loose Diamond Loose

3.10 CT Old Mine Cushion Cut Loose Diamond

3.10 CT Old Mine Cushion Cut Loose Diamond

SKU:LG16374

#Pure Lab Grown Diamond
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This 3.10 ct old mine cushioncut loose diamond showcases the character that collectors appreciate in J to Z color diamonds. Instead of chasing an icy-white appearance, this diamond embraces a naturally warm champagne tint that enhances the historic Old Mine Cushion cut. Its high crown, smaller table, and broad chunky facets create slow, bold flashes of light, allowing the soft golden undertones to become part of the design rather than something to hide. This is especially popular for antique inspired engagement rings, heirloom jewelry, and vintage style custom settings where warmth adds authenticity.

The J to Z color range offers a unique alternative for buyers who value larger carat size, and antique aesthetics over a perfectly colorless stones. Many choose these warm diamonds because they pair beautifully with yellow or rose gold, create a softer romantic glow, and deliver excellent value compared with higher color grades. With VS clarity, a 3.10 CT size, and an Old Mine Cushion silhouette, this loose lab grown diamond is an ideal center stone for a bespoke solitaire, hidden halo, cathedral, or three stone engagement ring inspired by historic craftsmanship.

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|| 𝐍𝐨𝐭𝐞: 𝐈𝐟 𝐲𝐨𝐮 𝐩𝐮𝐫𝐜𝐡𝐚𝐬𝐞 𝐚 𝐝𝐢𝐚𝐦𝐨𝐧𝐝 𝐢𝐧 𝐭𝐡𝐞 𝐉 𝐭𝐨 𝐙 𝐜𝐨𝐥𝐨𝐫 𝐫𝐚𝐧𝐠𝐞, 𝐢𝐭 𝐰𝐢𝐥𝐥 𝐡𝐚𝐯𝐞 𝐚 𝐲𝐞𝐥𝐥𝐨𝐰 𝐭𝐢𝐧𝐠𝐞 (𝐲𝐞𝐥𝐥𝐨𝐰𝐢𝐬𝐡 𝐬𝐡𝐚𝐝𝐞). 𝐈𝐟 𝐰𝐞 𝐦𝐚𝐤𝐞 𝐚𝐧 𝐈𝐆𝐈 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐨𝐟 𝐭𝐡𝐞 𝐝𝐢𝐚𝐦𝐨𝐧𝐝, 𝐢𝐭𝐬 𝐜𝐨𝐥𝐨𝐫 𝐠𝐫𝐚𝐝𝐞 𝐰𝐢𝐥𝐥 𝐚𝐥𝐬𝐨 𝐟𝐚𝐥𝐥 𝐛𝐞𝐭𝐰𝐞𝐞𝐧 𝐉 𝐚𝐧𝐝 𝐙 𝐜𝐨𝐥𝐨𝐫. ||

❚❚❚ 𝐍𝐨𝐭𝐞:- 𝐈𝐧 𝐭𝐡𝐞 𝐞𝐯𝐞𝐧𝐭 𝐭𝐡𝐚𝐭 𝐲𝐨𝐮𝐫 𝐝𝐞𝐬𝐢𝐫𝐞𝐝 𝐝𝐢𝐚𝐦𝐨𝐧𝐝 𝐢𝐬 𝐬𝐨𝐥𝐝 𝐨𝐮𝐭, 𝐰𝐞 𝐚𝐫𝐞 𝐩𝐥𝐞𝐚𝐬𝐞𝐝 𝐭𝐨 𝐨𝐟𝐟𝐞𝐫 𝐚 𝐬𝐢𝐦𝐢𝐥𝐚𝐫 𝐜𝐮𝐭 𝐭𝐚𝐢𝐥𝐨𝐫𝐞𝐝 𝐭𝐨 𝐲𝐨𝐮𝐫 𝐬𝐩𝐞𝐜𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬. 𝐏𝐥𝐞𝐚𝐬𝐞 𝐜𝐨𝐧𝐭𝐚𝐜𝐭 𝐮𝐬 𝐭𝐨 𝐝𝐢𝐬𝐜𝐮𝐬𝐬 𝐲𝐨𝐮𝐫 𝐩𝐫𝐞𝐟𝐞𝐫𝐞𝐧𝐜𝐞𝐬 𝐚𝐧𝐝 𝐚𝐧𝐲 𝐢𝐧𝐪𝐮𝐢𝐫𝐢𝐞𝐬 𝐲𝐨𝐮 𝐦𝐚𝐲 𝐡𝐚𝐯𝐞 ❚❚❚

Diamond Details

Shape Old Mine Cushion
Carat Weight 3.10 CT (± 0.10 CT )
Dimension 9.75*7.95*5.45 MM (± 0.05 MM)
Color/Clarity J To Z_VS
Hardness 10/10
Type Lab Grown Diamond
SKU LG16374


 𝐓𝐞𝐫𝐦𝐬 & 𝐂𝐨𝐧𝐝𝐢𝐭𝐢𝐨𝐧 𝐅𝐨𝐫 𝐋𝐨𝐨𝐬𝐞 𝐃𝐢𝐚𝐦𝐨𝐧𝐝:
• Refunds and cancellations are not applicable for loose diamonds.
• Customization prevents the option of stone exchange.
• Authenticity is ensured through a diamond tester video.
• Orders will shipped within 10-12 days after confirmation.
• It is important to carefully review the listing specifications before placing an order. 
• Ouros branded authenticate certificate as required.

Shipping Policy:

We offer international shipping, which takes 8–14 business days after dispatch. If the item is available at our NYC office, we can offer overnight U.S. shipping upon request for an additional fee.All orders are insured and trackable, with signature on delivery available upon request.
For any shipping-related questions refer our shipping policy.

Return Policy:

If there's a manufacturing defect within 30 days of delivery, we're happy to offer a free repair. Please note, returns based on personal preference after delivery are not eligible. For concerns after 30 days, repairs may still be available at a charge.
All returns must be pre-approved. Contact us at contact@ourosjewels.com for assistance. For more refer policy.
Thank you for choosing Ouros Jewels!

What Our Clients Say

Here's what our clients have to say about their Cullen experience.

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C. Lor

Bought this as a surprise for my mom! Can't wait to give it to her! It's very pretty, sparkly, and exactly what I asked for. Just a lovely company and great customer service.
KE

Kelly V

Obsessed with ouros jewels! Been buying my jewelry with them for years and been nothing but excellent customer service and amazing prices and quality diamonds.
ME

Merry Gibson

I have ordered two rings from Ouros Jewels (see below) and both are absolutely stunning! I was pleased by the excellent customer service as well as the beautiful end product. Vijay was a delight to work with and I will definitely do business with him again.
CH

chris crawford

Customer service is top notch, very attentive, all documentation is in order, igl certs are real. Price is good for custom build. I’m extremely happy with quality
KI

Kimberly Arcoleo

Vijay and his team did an outstanding job on my new emerald and diamond ring!!! Great communication during the design process and he even remade my ring because he wasn't happy with the quality of the first one. I will definitely purchase more items from his store!!
DE

Denise Cwik

Simply beautiful piece, constructed in a timely manner with constant notes keeping me informed on the entire process. Very comforting to receive such personal care and attention.
ZA

Zamarade Y

I ordered a custom ring from Ouros. It was beautifully done. Looks gorgeous. Very pleased with Vijay and team. This is my 2nd item from them and both times the process was easy. I will be going back for other pieces to Ouros.
KI

Kim Vaughan

Customer service from beginning to end was fantastic. The product is better than expected. In fact I put the earrings in my ears and have not taken them out.

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