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Round Lab Diamond Studs

Round Lab Diamond Studs

4.9· 629 ratings

Best price now

$366.18at AmazonObserved at 1:06 PM

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Our take on the Round Lab Diamond Studs

A pair of round lab-grown diamond studs in 14k solid gold, set in a three-prong martini mount with screw-back posts. Lab diamonds keep the price well below mined stones of the same size, and the martini setting sits close to the ear. The best new price is $366.18 at Amazon as of November 4, 2026, the only new listing found.

Best forShoppers who want diamond studs at a lower price than mined stonesEveryday wear and second-ear piercingsGifts for birthdays, anniversaries or graduationsBuyers who prefer screw backs that stay put
Pros
  • 14k solid gold, not plated or filled
  • Lab-grown diamonds cost less than mined ones
  • Three-prong martini setting sits flush and low
  • Screw-back posts are hard to knock loose
  • Lifetime warranty listed
Cons
  • Only one new listing found, so little price competition
  • Screw backs take longer to put on and take off
  • SI2 clarity and F/G color in the specs differ from the VS2 and F color in the description
  • Small stones under 1 carat total look modest in person

Round Lab Diamond Studs prices at every store

  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $366.18Free shippingObserved at 1:06 PM
    Visit store

Also available at

  • Ring ConciergeCheck price at Ring Concierge
  • Bright BrillianceCheck price at Bright Brilliance
  • eBayCheck price at eBay
  • Maaz JewelersCheck price at Maaz Jewelers
  • Maya's GoldCheck price at Maya's Gold

Round Lab Diamond Studs price history

Lowest price we've seen: $366.18 on Nov 4 at Amazon. Tracked across 5 stores since Nov 4.

What reviewers say

Rated 4.9 out of 5 from 629 ratings. Buyers of lab-grown studs in this style generally report stones that look bright and settings that hold up to daily wear.

Pros
  • Stones look clear and sparkle well for the price
  • Solid gold feel and finish
  • Screw backs stay secure
Cons
  • Screw backs are fiddly for some wearers
  • Stones can look smaller than photos suggest

About the Round Lab Diamond Studs

• 14k solid gold

• 3- prong martini setting with friction back closure

• 2 round, lab grown diamonds (sold as a pair)

• F Color, VS2 Clarity, Excellent Cut

• Total carat weight and diameters (carat shown on images are per pair):

• 0.5 carat: 4 mm

• 1 carat: 5 mm

• 1.5 carat: 5.75 mm

• 2 carat: 6.25 mm

• 2.5 carat: 6.90 mm

• 3 carat: 7.40 mm

• 4 carat: 8.20 mm

• 5 carat: 8.75 mm

Specifications

Metal
solid goldSource
Diamond clarity
SI2 ClaritySource
Diamond color
F/G ColorSource
Diamond shape
RoundSource
Width (2tcw)
6.3mmSource
Width (3tcw)
7.5mmSource
Width (4tcw)
8mmSource
Thickness
6-6.5mmSource
Weight
1.8-2.1gSource
Earring back
screw back postSource
Warranty
Lifetime WarrantySource

Questions and answers

Are these real diamonds?
Yes. They are lab-grown diamonds, which have the same physical and chemical makeup as mined diamonds. They are set in 14k solid gold.
What does the carat weight mean here?
The carat figure is the total for the pair, so 1 carat means two 0.5-carat stones. Each 1-carat pair has stones about 5 mm wide.
What is the difference between the 2, 3 and 4 carat sizes?
The pair gets wider as carat weight rises: about 6.3 mm at 2 carats, 7.5 mm at 3 carats and 8 mm at 4 carats. Weight runs about 1.8 to 2.1 grams.
Do the screw backs make them hard to wear?
Screw backs are slower to put on than push backs, but they hold firmly and suit daily wear. Many buyers choose them for that security.
Is $366.18 a good price?
It is the only new price found as of November 4, 2026, so there is no competing listing to compare against. Compare it with other 14k lab-diamond studs of the same carat weight before buying.
What is in the box?
A pair of earrings, one stone per ear. Check the listing for the carat size you order, since the price and width change with it.
Where is the Round Lab Diamond Studs cheapest?
At Amazon, for $366.18, as of our latest check.
What do buyers say about the Round Lab Diamond Studs?
Rated 4.9 out of 5 from 629 ratings.
Where can I buy the Round Lab Diamond Studs?
6 stores we checked sell it, including Amazon, Ring Concierge, Bright Brilliance, eBay, Maaz Jewelers.

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