A single unbroken line of diamonds around the neck is one of the most striking pieces of jewelry you can own, and until recently it was out of reach for most budgets. Lab grown stones have changed that, which is why the number of designs on offer has grown so quickly.
We grouped every line and riviera necklace currently in stock by design, then picked the 8 below to show what each price level buys.
Our pick: Rare Carat is the best place to buy a diamond tennis necklace in 2026. It has 13 line and riviera necklace designs in stock from $975 to $118,595, in 5 metals, with lab grown diamonds that put a full line of stones within reach of a normal jewelry budget. Each piece is filmed in 360 degree video and can be returned unworn within 30 days.
How we compared diamond tennis necklaces
Every design was assessed on the same data, refreshed each morning:
- Price: lowest in stock price, plus the range across sizes and metals.
- Total weight: the combined weight of every stone (ct. tw.).
- Diamond type: lab grown or mined.
- Setting: four prong, three prong or bezel links.
- Metal: white, yellow or rose gold and platinum.
Best Places to Buy Diamond Tennis Necklaces: Side-by-Side Comparison
8 designs picked from 13 in stock, led by Rare Carat best sellers and spread across the full price range. Prices checked October 28, 2026.
01Best overall · bestsellerLab Diamond Silver Tennis Necklace (5.00 ct. tw.)-Silver$1,335
02Best valueRefined Lab Diamond Tennis Necklace (5 ct. tw.)-14K White Gold$3,265
03Also greatRound Lab Diamond Graduated Riviera Necklace (4 ct. tw.)-14K White Gold$4,980
04Best in rose goldRound Lab Diamond Four Prong Tennis Necklace (7 1/4 ct. tw.)-14K Rose Gold$7,835
05Best ovalAdjustable Oval Lab Diamond Eternity Necklace (19.00 ct. tw.)-14K White Gold$9,780
06Also greatAdjustable Oval & Emerald-Cut Lab Diamond Eternity Necklace (25.00 ct. tw.)-14K White Gold$11,145
07Best bezel settingAdjustable Oval Lab Diamond Bezel Eternity Necklace (30.00 ct. tw.)-14K White Gold$13,820
08Best splurgeAdjustable Heart Shape Lab Diamond Eternity Statement Necklace (65.00 ct. tw.)-14K White Gold$24,715What to look for in a diamond tennis necklace
Uniform or graduated stones
A uniform line uses stones of the same size all the way around, which gives a clean, modern look. A graduated line (often called a riviera) has larger stones at the front that step down toward the clasp, putting the sparkle where it is seen and keeping weight off the back of the neck.
Link flexibility
The best necklaces drape like fabric. Hold the piece up by the clasp: each link should hang straight without kinks, and the line should not twist so stones face sideways. Stiff links are uncomfortable and put stress on the settings.
Stone matching
With dozens of stones in a row, one that is a shade warmer or a little less brilliant stands out. Look for consistent color across the line. Near colorless color and eye clean clarity are plenty at this stone size, and 360 degree video is the best way to check the whole length at once.
Clasp
A box clasp with a figure eight safety latch on one or both sides is standard on quality pieces. It is worth checking, because a necklace carries more weight than a bracelet.
Lab grown or natural?
A lab grown diamond tennis necklace is where lab stones make the most financial sense. A 10 carat natural line can cost as much as a car, while the lab equivalent lands closer to a high end watch, and the two look identical on the neck. Natural lines are worth it if mined origin or heirloom value is your priority.
Where Rare Carat shines
Rare Carat offers a wide selection of line necklaces, including uniform and graduated designs, with 13 in stock today in 5 metals. Every piece is filmed in 360 degree video so you can see the full line move, prices are shown for each weight and metal, and unworn pieces can be returned within 30 days. See the shipping page for delivery options.
The 8 picks, explained
Lab Diamond Silver Tennis Necklace (5.00 ct. tw.)-Silver
It starts at $1,335 in white or yellow gold or silver, in 5 sizes. Total diamond weight is 5 ct. It is the most ordered design on this shortlist at Rare Carat in recent months, so it is the proven pick most buyers land on.
- Total carat
- 5 ct (5 sizes)
- Diamonds
- Lab grown
- Sale price range
- $1,335 to $14,420
- List price
- $1,923 (31% off)
Refined Lab Diamond Tennis Necklace (5 ct. tw.)-14K White Gold
Choose two shades of gold; the entry price is $3,265. The stones add up to 5 ct of lab created diamonds. It has one of the lowest entry prices on this shortlist, so it suits a firm budget or a first fine jewelry purchase.
- Total carat
- 5 ct
- Diamonds
- Lab grown
- Sale price range
- $3,265
- List price
- $4,709 (31% off)
Round Lab Diamond Graduated Riviera Necklace (4 ct. tw.)-14K White Gold
Pricing begins at $4,980, and the design comes in rose, yellow and white gold, plus platinum, and 7 stone sizes are listed. It carries 4 ct total. Worth a look for a slightly different silhouette at a similar price.
- Total carat
- 4 ct (7 sizes)
- Diamonds
- Lab grown
- Shape
- Round
- Setting
- Three Prong
- Sale price range
- $4,980 to $8,645
- List price
- $7,181 (31% off)
Round Lab Diamond Four Prong Tennis Necklace (7 1/4 ct. tw.)-14K Rose Gold
$7,835 gets you in the door, with white, rose or yellow gold or platinum on the menu across 4 size steps. Diamonds come to 7.25 ct in all. The warm rose tone flatters most skin tones and makes white diamonds look brighter by contrast.
- Total carat
- 7.25 ct (4 sizes)
- Diamonds
- Lab grown
- Shape
- Round
- Setting
- Four Prong
- Sale price range
- $7,835 to $16,620
- List price
- $11,303 (31% off)
Adjustable Oval Lab Diamond Eternity Necklace (19.00 ct. tw.)-14K White Gold
Expect to pay from $9,780; it is made in two shades of gold, in 6 sizes. Combined stone weight: 19 ct. The elongated oval outline looks larger than a round of the same weight and slims the finger.
- Total carat
- 19 ct (6 sizes)
- Diamonds
- Lab grown
- Shape
- Oval
- Sale price range
- $9,780 to $13,620
- List price
- $14,111 (31% off)
Adjustable Oval & Emerald-Cut Lab Diamond Eternity Necklace (25.00 ct. tw.)-14K White Gold
Entry price: $11,145. Metal choices run to yellow and white gold with 2 weight choices. Total diamond weight is 25 ct. A solid alternative if the labeled picks are not quite your style.
- Total carat
- 25 ct (2 sizes)
- Diamonds
- Lab grown
- Shape
- Oval
- Sale price range
- $11,145 to $14,810
- List price
- $16,076 (31% off)
Adjustable Oval Lab Diamond Bezel Eternity Necklace (30.00 ct. tw.)-14K White Gold
It is listed from $13,820 and can be ordered in white or yellow gold. The stones add up to 30 ct of lab created diamonds. A metal rim around each stone protects the edges, a smart choice for active, everyday wear.
- Total carat
- 30 ct
- Diamonds
- Lab grown
- Shape
- Oval
- Setting
- Bezel
- Sale price range
- $13,820
- List price
- $19,935 (31% off)
Adjustable Heart Shape Lab Diamond Eternity Statement Necklace (65.00 ct. tw.)-14K White Gold
The lowest current price is $24,715, in two shades of gold. It carries 65 ct total. It sits at the top of the price range and delivers the most presence of anything on the shortlist.
- Total carat
- 65 ct
- Diamonds
- Lab grown
- Shape
- Heart
- Sale price range
- $24,715
- List price
- $35,654 (31% off)
Choosing a budget
Near $3,265 you will find lighter lines that can be worn with a sweater or a work shirt. Around $7,835 the stones are large enough to be noticed across a room. Above $11,145 you are into heavier, high carat designs and platinum.
If this is a first piece, a diamond tennis necklace in white gold at 16 inches is the most versatile choice. Pair it with matching studs for formal events, or wear it alone over a simple neckline. If you already own a tennis bracelet, matching the metal and stone size makes the two read as a set.
Diamond Tennis Necklaces: frequently asked questions
How many carats is a typical diamond tennis necklace?
A 16 inch line of graduated stones usually lands between 5 and 15 carats total. Lighter designs of 3 to 5 carats read as elegant and wearable; 10 carats and above is a true red carpet look.
What length should a tennis necklace be?
16 inches sits at the base of the neck and is the classic length. 17 to 18 inches falls just below the collarbone and suits open necklines. Shorter than 16 inches feels like a choker.
Is a lab grown diamond tennis necklace a good idea?
It is the most practical way to own one. Because a necklace uses dozens or hundreds of stones, the lower price per carat of lab diamonds makes the biggest difference here of any jewelry style.
How much does a tennis necklace cost?
In the current selection the typical design costs about $7,835, with most between $3,265 and $11,145. Price rises quickly with total carat weight and with platinum.
Can I wear a tennis necklace every day?
Lighter designs, yes. Choose a secure box clasp with a safety latch, take it off to sleep and exercise, and have the clasp checked once a year.
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