Diamond Tennis Necklaces

Lab-grown diamond tennis necklace in solid gold

An unbroken river of diamonds around the neck — the tennis necklace is the most wanted piece in fine jewelry right now. Ours are set with CVD lab-grown diamonds in D-E-F color and VVS1 clarity, in solid 10K, 14K or 18K gold, and priced by carat weight so you can choose exactly how much fire you want.

Shop diamond tennis necklaces

4-Prong Tennis Necklace4-Prong Tennis Necklacefrom $3,64814K Pear Tennis Necklace14K Pear Tennis Necklacefrom $3,54014K Marquise Tennis Necklace14K Marquise Tennis Necklacefrom $3,546.8014K Illusion Tennis Necklace14K Illusion Tennis Necklacefrom $2,373.2014K Halfway Oval Tennis Necklace14K Halfway Oval Tennis Necklacefrom $3,71014K Graduated Tennis Necklace14K Graduated Tennis Necklacefrom $4,394.6014K Emerald Tennis Necklace14K Emerald Tennis Necklacefrom $4,04014K East-West Oval Tennis Necklace14K East-West Oval Tennis Necklacefrom $7,295.40

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Classic vs. graduated

  • Classic tennis — diamonds of one size all the way around. Clean, even, endlessly wearable, and the easiest to layer.
  • Graduated tennis — stones grow toward the center, putting the biggest diamonds right at the front. More drama per carat, and the style our customers ask for most.

Choosing carat weight and length

  • Carat weight drives the look more than anything: smaller totals read as an elegant line of light; larger totals are unmistakable. Each product page lists its carat options — when in doubt, go one step up; tennis necklaces are bought once and worn for decades.
  • Length — 16–17″ sits at the collarbone like a choker of light; 18″ is the classic drop; longer lengths layer over necklines. Our full breakdown is in the Chain Length Guide.
  • Gold — 10K for everyday toughness, 14K for the classic balance, 18K for the richest color. Yellow, white and rose options appear across the line.

The quality standard

CVD Lab-GrownGrown by Chemical Vapor Deposition — real diamonds, physically and chemically identical to mined stones.
D-E-F ColorThe top of the color scale: near-colorless to colorless, so the line reads white and bright in every light.
VVS1 ClarityVery, very slightly included — inclusions are difficult to see even under 10x magnification, invisible to the naked eye.

Why buy from AM Jewelry NYC

  • Free US shipping on every order, with signature confirmation on orders of $500 and up.
  • Ships within 24–48 hours (Monday–Friday) from New York.
  • 30-day returns on unworn pieces in original condition.
  • Financing through Affirm on eligible purchases at checkout.
  • Rated 4.5 out of 5 across 12,000+ customer reviews — browse them on our reviews page.

Tennis necklace FAQs

Are lab-grown diamonds real?
Yes — same carbon crystal, same hardness, same sparkle as mined diamonds. The difference is origin and price: lab-grown puts your budget into carat weight and quality instead of mining.

Can I wear a tennis necklace every day?
Yes. A well-made setting in solid gold is built for daily wear — just have the clasp and prongs checked once a year, and store it flat so it doesn't kink.

Which length should I order?
18″ is the safe classic. For a higher, collarbone fit choose 16–17″. Our Chain Length Guide shows where each length falls.

Want the matching set?
Pair it with a diamond tennis bracelet from the same line — same stones, same standard.

This page is part of our Lab-Grown Diamond Jewelry in NYC collection — rings, bracelets, earrings and necklaces, all CVD lab-grown, D-E-F, VVS1.