Round Lab-Grown Diamond Tennis Necklace in 14K Yellow Gold (28 1/2 ct. tw., VS/SI+ G+), 18 Inch
Metal 14K Yellow Gold
Chain length guide

Product information
- Metal14K Yellow goldPolished
- StoneDiamond6.4 mm round
- Size18 inChain length
- Weight35.1 gTotal item weight
Description
A graduated line of white round lab-grown diamonds glitters across this tennis necklace in polished yellow gold, and the sparkle reads bright from every angle. The metal is solid gold with a smooth, high-polished finish that lets each faceted stone stand out. The stones step up in size toward the center and sit in a continuous line, so the necklace drapes evenly along the neckline. A box catch with a safety clasp holds it closed. You can wear it over a white shirt or with a black dress for dinner. A fitting choice for an anniversary or birthday.
Key Features
- Crafted in 14K yellow gold with a polished finish
- Set with white lab-grown diamond
- Diamond necklace design
- Measures 18 inches long
- Secured by a box catch
- Approximate weight of 35.1 grams
Why You’ll Love It
- A steady line of sparkle that catches light as you move.
- Dresses up an understated tee and keeps an evening look polished.
- Warm yellow gold makes the white stones glow.
- Secure closure lets you wear it without fussing over the clasp.
Perfect For
Perfect for a birthday, an anniversary or an April birthstone celebration. A natural gift for a wife, partner, mother or anyone who enjoys a classic diamond necklace.
Product details14K yellow gold · Diamond · 35.1 g
Metal
- Metal
- Yellow gold
- Purity
- 14K
- Finish
- Polished
- Construction
- Solid
- Made by
- Cast
Center stone
- Stone
- Diamond
- Origin
- Lab-grown
- Shape
- Round
- Size
- 6.4 mm
- Carat weight
- 0.97 ct
- Color
- White
- Number of stones
- 1
- Clarity
- VS/SI+
- Color grade
- G+
- Cut
- Faceted
Accent stones
- Stone
- Lab-grown diamond
- Shape
- Round
- Number of stones
- 105
- Total weight
- 27.53 ct
- Color
- White
- Clarity
- VS/SI+
- Color grade
- G+
Measurements
- Chain length
- 18 in
- Clasp
- Box Catch
- Total carat weight
- 28.5 ct. tw.
- Weight
- 35.1 g
Style & design
- Feature
- Safety Clasp
- Style
- Classic
More
- Made in
- India
- Birthstone
- April
- Item #
- SJQG-PM10336-LG-18
Our standards
- Stamped with its metal type (e.g. 14K, 925)
- Diamonds are conflict-free
Length & fitLength guide · 30-day length exchanges

If the length isn’t right, you can exchange it within 30 days of delivery.
Shipping & returnsFree insured shipping over $99 · 30-day returns
Free, insured shipping on US orders of $99 or more.
Return it within 30 days of delivery, unworn and in its original packaging.
Exchange it within 30 days for another size or another piece.
Covered by our One-Year Limited Jewelry Warranty against manufacturing defects.
What’s in the boxYour necklace in a luxury jewelry gift box
- Your necklace
- A luxury jewelry gift box
- A packing slip with no prices on it
Jewelry careStore each piece on its own in a soft pouch
Store each piece on its own in a soft pouch or lined box, so nothing scratches it.

Recently viewed products
What Our Customers Are Saying
Real reviews from Sophia Jewelers customers, collected by Judge.me.
Diamond Necklaces, answered
Straight answers about diamond necklaces. See all Diamond Necklaces
- Free Shipping
- US Orders $99+
- Exchanges
- 30 Days
What affects the price of diamond necklaces?
Metal, diamond weight and diamond type drive the price. Solid 14K gold costs more than sterling silver or gold-plated silver, and a higher total carat weight raises it further. Lab-grown and natural diamonds are priced differently too. Use the Price filter on this page to set a budget.
Which diamond necklace styles are most popular?
Infinity, teardrop and circle styles lead the list. Diamond hearts, lockets and two-stone necklaces in 14K gold follow closely, with bar slide and solitaire designs also well represented. Most are on an 18 inch chain, so they sit near the collarbone.
Should I choose a lab-grown or natural diamond necklace?
Both are real diamonds with the same sparkle. Lab-grown stones are made in a lab, and many of the larger necklaces here use them, which allows a bigger total carat weight. Each product title says whether the diamonds are lab-grown, so check it as you browse.
Which diamond necklace is best for everyday wear?
A solitaire, small teardrop or bar slide suits daily wear. Their simple shapes sit close to the neck and are easy to layer under collars. Choose 14K gold for the most durable everyday option, since plated pieces can wear over time.
Is white gold or yellow gold better for a diamond necklace?
Choose white gold for a cool look, yellow for warmth. White gold makes the diamonds look bright and icy, while yellow gold gives a richer glow. Some teardrops also come in two-tone gold. Pick the color that matches the jewelry the wearer already owns.
How do I care for a diamond necklace?
Clean it gently and store it separately. Wipe with a soft cloth or use mild soapy water and a soft brush, then dry well. Keep it in a pouch so the chain does not tangle. See our jewelry care tips for more.