Round Diamond Necklaces
The round brilliant is the most widely worn diamond shape, and it suits every kind of necklace. This collection gathers every necklace we make with round diamonds, about 56 designs: single pendants, clusters and starbursts, curved bars, station and dangling necklaces, and tennis strands, in natural and lab-grown diamonds, with colored rounds in pink, yellow, blue and green.
What the Round Brilliant Is Built to Do
A round brilliant has 57 or 58 facets arranged in a precise circle, angled so that light entering the top bounces off the lower facets and comes back out toward your eye. No other shape is cut to return quite as much light, which is why rounds give the brightest, most even sparkle. Because the outline is a circle, that sparkle looks the same from every direction, with no corners or points that catch light differently from the rest of the stone.
No Wrong Way Up
That symmetry matters more on a necklace than on a ring. Pendants turn as you move, stations rotate on their chains, and dangling stones swing. A pear can end up pointing sideways and an emerald cut can sit crooked, but a round always looks the way it was meant to. It's also the shape with no fragile tips or exposed corners, so it's the most forgiving choice for a piece that brushes against clothing all day.
A Single Round at the Center
The simplest round necklace is one stone on a chain. Our natural round pendants go up to 1 carat, and our lab-grown rounds reach 3 carats, set in a bezel or held by prongs. A bezel wraps the stone in a smooth metal rim that protects its edge, while prongs lift it higher and let more light in from the sides. Natural rounds of half a carat or more come with an IGI or GIA report, and lab-grown rounds of 1 carat or more with an IGI report. For a stronger statement, our colored round pendants come in fancy pink, yellow, blue and green, lab-grown and color-treated after growth. More single-stone designs are in our solitaire necklaces.
Rounds Gathered Into Shapes
Small round diamonds are the building blocks of most cluster jewelry, because circles pack together neatly and their sparkle blends into one surface. Our designs include round clusters at 1 carat, starbursts that fan small rounds out from a central stone at 1 and 1.28 carats, a 1.07 carat halo that rings a center round with smaller ones, and a four-prong cluster at 1.20 carats. Smaller pieces use just a few rounds: a three-diamond trio, round-set crosses and a four-diamond flower. Other cluster patterns, including mixed shapes, are in our diamond cluster necklaces.
Rounds in a Row
Lined up along a chain, round diamonds read as a clean, even line of light.
Curved bars set a short arc of rounds across the collarbone, from 0.20 to 0.59 carats, and some alternate rounds with marquise cuts for a more varied pattern.
Station and dangling necklaces space rounds along the chain, either set into it or hanging below. A nine-stone design spreads 0.90 carats of small rounds evenly, a seven-stone version carries 2.80 carats, and a five-stone necklace holds 3 carats in larger stones. See them all in our station necklaces.
Tennis necklaces set rounds edge to edge with no chain showing between them. Ours start at 3.94 carats, and a round Y-necklace adds a short drop at the front. The full range is in our diamond tennis necklaces.
Matching Round Pieces
Because the round is the most common shape across fine jewelry, it's easy to build a set. Pair a round pendant with studs from our round diamond earrings, add a band from our round diamond rings or a strand from our round diamond bracelets, or explore everything in our round diamond jewelry collection.
Round necklaces are made in natural or lab-grown diamonds, in 925 sterling silver and in 10K, 14K or 18K yellow, white or rose gold, with some larger tennis designs offered in gold only. Some come with the chain attached; on others you add a chain in silver, 14K or 18K gold, and 10K pieces are sold without a chain. Necklaces over $800 also ship with a GSI certificate for the finished piece.