3 Carat Cushion Cut 18k Yellow Gold Lab Diamond Ring+ 3.0-Carat Cushion Lab Created Diamond

Yes. The FTC updated its definition of diamond in 2018 to remove the word natural, recognizing that lab diamonds meet every scientific criterion to be called a diamond. They are not simulants, not imitations, and not glass. They are diamonds, grown in a lab rather than mined from the ground.

No plating or special coatings are needed. Yellow gold of any karat is naturally gold in color, so maintenance is straightforward: clean with mild soap and warm water, polish occasionally with a jewelry cloth, and have a jeweler inspect prongs and settings annually. Unlike white gold, there is no replating to worry about. For white gold options, Do Amore offers free rhodium replating as part of their maintenance services. At 3 carats, this ring will stand out in any room. It is a bold choice that still reads as refined, sitting comfortably below the truly oversized range.

A 3 carat cushion lab diamond in 18k yellow gold is a romantic, luxurious choice that feels like a modern heirloom. The cushion's rounded corners and broad facets produce soft, sweeping flashes of light that have a gentler character than round brilliants. The deep, saturated tone of 18k yellow gold enhances the warmth of the overall design, and at 3 carats the cushion's pillow-like shape creates a generous, eye-catching presence.

Both. The cushion cut has roots in 19th-century cutting styles, which gives it a romantic, antique feel that suits vintage-inspired settings beautifully. But it has also been modernized with updated facet patterns that produce brilliant light performance. It is one of the few shapes that works equally well in a Georgian-inspired setting and a contemporary minimalist ring. At this size, 3 carats puts you in a category most people only dream about. It delivers drama and luxury without crossing the line into impractical.

The deep golden saturation of 18k yellow gold paired with a 3 carat cushion cut lab diamond creates a ring with both vintage grandeur and modern ethical standards. The cushion's broad facets at this size reveal extraordinary light performance. Do Amore crafts every ring from recycled 18k gold in the US, and their 1:1 giving model has funded clean water for over 22,000 people across 14 countries since 2017.