1 Carat Marquise Cut Platinum Lab Diamond Ring+ 1.0-Carat Marquise Lab Created Diamond

Lab diamonds have a significantly smaller environmental footprint than mined diamonds. They require no land disruption, no large-scale excavation, and can be produced in facilities powered by renewable energy. For shoppers who care about environmental impact, lab diamonds are one of the most responsible stone choices available.

Noticeably heavier. Platinum is about 60 percent denser than white gold, so the same ring design feels substantially heavier on the finger in platinum. Some people find that weight reassuring and premium-feeling. Others prefer the lighter feel of gold. It is worth trying both before deciding if weight is a factor for you. One carat has been the benchmark engagement ring size for generations, and it remains one of the most popular choices today.

Platinum is the strongest and most durable precious metal used in jewelry, making it ideal for protecting a marquise's two delicate pointed ends. Unlike white gold, platinum does not wear away from prongs over time; it displaces rather than erodes. Combined with a 1 carat lab diamond's 10/10 Mohs hardness, this ring is built to last a lifetime.

Significantly. The marquise's long, narrow silhouette is one of the most elongating shapes available. Worn with the points along the length of the finger, it creates a dramatic visual extension that makes fingers appear longer and more slender. This is one of the primary reasons the shape remains popular for engagement rings. One carat is where tradition meets accessibility. It was the gold standard long before larger stones became affordable through lab-grown technology.

A 1ct marquise lab diamond in platinum from Do Amore is the choice for couples who want the most durable precious metal paired with a dramatic diamond shape. Platinum is 95% pure, naturally white, and hypoallergenic, so it never needs replating. The marquise cut's elongated form creates the largest visual footprint per carat and flatters the finger beautifully. Do Amore is the only engagement ring company to appear on Shark Tank, and every purchase funds clean water.