Diamond Necklace

Diamond necklaces at Davizi Jewels come in three main forms: tennis necklaces, a continuous line of matched diamonds; pendant necklaces, a single stone or motif on a chain; and bezel necklaces, with diamonds set in metal collars along the chain. Most are natural round diamonds graded G color and SI clarity, set in 14K white or yellow gold, in 16- or 18-inch lengths. Every piece ships with a GIA-certified appraisal, free shipping and a 30-day money-back guarantee.

Which style of diamond necklace?

The style decides how the diamonds read at a distance more than the carat weight does. A tennis necklace reads as an unbroken line of light. A pendant reads as one point. A bezel necklace sits between the two.

Shop by style: diamond tennis necklaces, diamond pendants, diamond bezel necklaces, fashion diamond necklaces, gemstone necklaces and religious diamond necklaces.

For a matched set in the same metal and grade, pair a necklace with diamond stud earrings or a diamond tennis bracelet.

What length diamond necklace should you choose?

16 inches and 18 inches are the two standard lengths, and most pieces here are offered in one or both. The difference is two inches of chain, but it moves the necklace from the base of the neck to below the collarbone.

A tennis necklace is usually worn at 16 inches, where the line stays close to the skin and sits evenly. A pendant usually suits 18 inches, which gives the stone room to hang clear of the collarbone. Neck size changes both, so a 16-inch piece sits lower on a slimmer neck.

How many carats for a diamond necklace?

On a pendant, carat weight is the size of one stone. A 0.25 carat round diamond measures about 4.1 mm across and reads as a clear point of light. A 0.50 carat stone is about 5.2 mm and is plainly a diamond at conversational distance. At 1.00 carat, about 6.5 mm, the pendant becomes the focus of the neckline.

On a tennis necklace, the carat weight is the total across every stone. At the same length, a higher total weight means larger individual stones rather than a longer necklace. A 2.00 ct line is fine and bright; a 10.00 ct line is a visibly heavier row of individual diamonds.

The carat and clarity guide covers how weight, diameter and grade fit together across all jewelry types.

What does G SI mean on a necklace?

G is a near-colorless color grade and SI is a clarity grade where inclusions need magnification to find. A necklace is seen from further away than a ring or earring, so a G SI stone looks white and clean when worn. On a tennis necklace, matching from stone to stone matters more than the grade itself, because one stone that is warmer or duller than its neighbors stands out along the line.

Natural or lab-grown diamonds?

The necklace listings here are natural diamonds, stated on each product as 100% natural and not enhanced. Lab-grown diamonds are chemically the same material and cost less for the same size, while natural diamonds hold their value differently on resale. The differences are covered in full in Lab-Grown vs. Natural Diamonds.

14K white or yellow gold

White gold sits closest to the diamonds in tone and keeps a G stone looking white, which is why most tennis necklaces are made in it. Yellow gold warms the line slightly and is a natural match for yellow gold rings and bracelets already in a collection. Both are 14K, which is harder than 18K and better suited to a chain that flexes every time it is worn.

Buying from Davizi Jewels

Davizi Jewels works direct with manufacturers from an office in New York's Diamond District, and sells by appointment and online nationwide. Every diamond necklace ships with a GIA-certified gemologist appraisal stating carat weight, color, clarity and metal. Shipping is free, returns run 30 days with money back, and length, metal or customization can be discussed by calling 800-504-0454 before ordering.

Common questions

What is the most popular length for a diamond necklace?

16 inches for tennis necklaces and 18 inches for pendants. The shorter length keeps a full line of diamonds sitting flat at the base of the neck; the longer one lets a pendant hang clear of the collarbone.

How big is a 0.25 carat diamond necklace?

A 0.25 carat round diamond is about 4.1 mm across, a little smaller than a pencil eraser. On a pendant it reads as a bright point of light, which is why it is a common first diamond necklace and a common gift weight.

What is the difference between a tennis necklace and a bezel necklace?

A tennis necklace sets diamonds side by side around its whole length. A bezel necklace holds diamonds in gold rims spaced along a chain, so it uses less diamond weight and has a lighter, more open look.

Do diamond necklaces come with certification?

Every diamond necklace sold by Davizi Jewels ships with a GIA-certified gemologist appraisal recording the carat weight, color, clarity and metal.

Can a diamond necklace be worn every day?

Yes. A pendant or bezel necklace in 14K gold is built for daily wear. A tennis necklace can be worn daily too, provided the clasp is checked regularly and the necklace is taken off for sleep, sport and swimming.

For a step-by-step guide to tennis necklaces specifically, read How to Choose a Diamond Tennis Necklace.

For pendants, see How to Choose a Diamond Pendant Necklace.