
Old Mine Cut Engagement Rings
Lab-Grown Diamonds · Made to Order · IGI Certified
The old mine cut is the original antique diamond cut — the cushion-shaped geometry hand-faceted through the Georgian and Victorian eras, with a high crown, small table, and open culet that returns light in broad, unhurried flashes rather than modern pinpoint sparkle. Sula cuts this heritage geometry into lab-grown diamonds: the same chunky, characterful facet arrangement, graded D–F color and VVS+ clarity, IGI certified. Each stone is grown and cut to order, so the proportions are matched and symmetrical — antique character with a certificate behind it. Set as a solitaire or bezel, or built out as a three-stone or five-stone ring, in 14K and 18K gold.
Shape
Style
Metal
Carat Size
Price Range
Showing 6 of 6 matching rings

Old Mine Cut Cushion Solitaire Lab-Grown Engagement Ring — 18K Gold
From $2,300

Old Mine Cut Cushion Half-Bezel Lab-Grown Engagement Ring — 18K Gold
From $2,300

Old Mine Cut Cushion Three-Stone Lab-Grown Engagement Ring — 18K Gold
From $3,900

Old Mine Cut Round Solitaire Lab-Grown Engagement Ring — 18K Gold
From $2,300

Old Mine Cut Cushion Bezel Lab-Grown Engagement Ring — 18K Gold
From $2,300

Old Mine Cut Elongated Cushion Solitaire Lab-Grown Engagement Ring — 18K Gold
From $2,300
Why Trust Sula Bridal
Every diamond is inspected, measured, and certified before it reaches you. We stand behind every ring with transparent policies and dedicated support.
HD Macro Video
Every diamond includes a high-definition macro video so you can inspect brilliance, fire, and clarity before you buy.
MM Measurements
Precise millimeter measurements provided for every stone, ensuring your diamond matches the setting perfectly.
IGI Certified
All diamonds certified by IGI. GIA certification available upon request for additional peace of mind.
Setting Consistency
Every setting is quality-checked for consistency across all ring sizes — the same precision at size 4 as at size 10.
Full Customization
Choose your metal (platinum, or 14K or 18K white, yellow, or rose gold), ring size, engraving, and diamond specifications.
Free Insured Shipping
Worldwide insured shipping via FedEx or DHL. Signature required. Full tracking provided within 24 hours.
After-Sales Care
One complimentary resize within the first year. Lifetime cleaning and inspection. Maintenance guidance included.