What to Know

2.5 carat diamonds are large enough to be substantial on any finger size, while still feeling like something you can comfortably wear every day. A round brilliant at this weight measures about 8.7 to 8.8mm face-up. It's a popular endpoint for clients who've worked their way up through sizes and found exactly what they were looking for.

Clarity becomes a more meaningful consideration at 2.5 carats. Inclusions that are invisible to the naked eye at 1 carat can sometimes be visible at this size, depending on their nature and location

No matter what size diamond you're considering, curation matters. You should never choose a diamond based on a grading report alone. While two diamonds may share identical 4Cs, they can look very different in person. Every diamond at Ada is hand-selected in person by our expert team. We curate only the rare few lab grown diamonds that meet our standards for cut precision, light performance, and beauty in real life.

Why Ada Diamonds

We know that a purchase this important deserves an exceptional experience. Whether you purchase online, or enjoy complimentary design support with a Diamond Concierge, each piece is made to order and crafted in house from start to finish.

Our master jewelers create each setting one at a time, built specifically for its stone. Nothing is mass-produced. Every detail is considered, refined, and made to last for a lifetime.