JNCY 3 ctw Lab Grown Round Diamond Certified Studs Review
Round lab-grown diamond studs, 2 stones of 1.50 ct each for 3.00 ctw, in 14k white or yellow gold on push backs at $2,400. The title calls them certified; they suit someone who wants a larger round stud.
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Our verdict
A larger round stud for someone who wants 3.00 ctw of lab-grown diamonds in white or yellow gold at $2,400, with color and clarity stated. Look elsewhere if you need dimensions that scale with the stone size, a cut grade, or the certificate named; the listing gives none of these.
- Best for
- Someone who wants a larger round stud, 3.00 ctw in 14k white or yellow gold.
- Skip if
- You need dimensions that reflect the stone size or a named certificate.
Why 3.9/5: Lifted by a full spec sheet with stone count and grades and a certified claim in the title; held back by size figures that do not seem to reflect the larger stones and by the unnamed certificate.
Two round lab-grown diamonds of 1.50 ct each make up the 3.00 ctw in this stud pair, prong set on push backs in 14k white or yellow gold. The stone details give near colorless (F-G) color and VS clarity, and the title calls the diamonds certified. The price is $2,400 for each of the 2 variants.
Specifications
| Spec | Listing says |
|---|---|
| Color | White, Yellow |
| Earring Length (in) | .25 |
| Earring Width (in) | .25 |
| Backing | Push Back |
| Setting | Prong Setting |
| Rhodium Plated | White Gold Only |
| Diamond Stone Type | Diamond |
| Diamond Creation Type | Lab Grown |
| Diamond Shape | Round |
| Diamond Color | Near Colorless (F-G) |
| Diamond Color Hue | White |
| Diamond Clarity | VS |
| Diamond Count | 2 |
| Diamond Carat Weight | 1.50 |
| Diamond Total Carat Weight | 3.00 |
Options and pricing
The choice is metal only: 14k yellow gold or 14k white gold, 2 variants priced at $2,400 each. Rhodium plating is listed for white gold only. The stones are fixed at 1.50 ct each, 3.00 ctw in total, and the listing gives the length and width as .25 in each, with a prong setting and a push back.
How it compares
The 2 ctw Lab Grown Round Certified Diamond Stud Earrings share the round shape and the near colorless (F-G), VS grades at $1,995, against $2,400 here. The 2 Ctw Oval Cut Lab Grown Diamond Certified Stud Earrings list $3,000, and the 3 ctw Round Lab Grown Diamond Graduated Dangle Earrings list $3,000 with 3.18 total carat weight.
Shipping, returns and warranty
JNCY ships by USPS at no cost and says most items are made to order, about two weeks, with an estimated ship date on the product page (FedEx 2Day is $25 on US orders and does not shorten production). A signature is required on engagement rings, made-to-order designs and orders over $1,500. It also ships to Australia, Canada, France, Germany, Ireland, Italy, South Korea and the United Kingdom for a flat $50, with duties and taxes paid by the buyer. Returns: 30 days from the ship date for pre-designed styles returned unworn with their original documents, with a free FedEx label on US orders; the FAQ page says 7 days instead, so confirm before relying on 30. Warranty: free lifetime repair or replacement of manufacturing defects and two free cleaning visits in the first year; wear and tear, lost stones and clearance items are excluded.
Before you buy
JNCY Jewelers is a Miami jeweler whose domain was registered in 2020. Independent feedback is thin: a ProvenExpert page lists three ratings, all 5.00, from Facebook and The Knot with no review text, and searches on 19 October 2026 found no Trustpilot or BBB page for the store. JNCY's own pages disagree in places: the refund window is 30 days on the Refund policy page and 7 days in the FAQ, and the custom-bridal page says it offers no financing while the financing page lists several plans. The listing mentions a diamond certificate; check the report number against the listing when the piece arrives and keep the paperwork, because JNCY charges $100 for a missing one on returns. Payments accepted include major cards, Affirm, Shop Pay and PayPal.
What we liked
- Stated count, 1.50 ct per stone and 3.00 ctw in total
- Near colorless (F-G) color and VS clarity are given
- The title states the diamonds are certified
- Two gold colors at one price of $2,400
Worth noting
- The .25 in length and width match the figures on the 2 ctw round stud listing, so the size of the 1.50 ct stones is not clear
- No cut grade is listed
- Only white and yellow gold are offered, with no rose gold
Questions before you buy
What are the diamonds in these studs?
The listing gives 2 round lab-grown diamonds of 1.50 ct each, 3.00 ctw in total, with near colorless (F-G) color and VS clarity, set in prongs.
Which metals are offered?
14k yellow gold and 14k white gold, 2 variants at $2,400 each. Rhodium plating is listed for white gold only, and the back is a push back.
Does the listing call the diamonds certified?
The title includes the word Certified. The listing text itself does not name a grading lab or give a report number.
Can I return it if I change my mind?
JNCY's Refund policy page gives 30 days from the ship date for pre-designed styles returned unworn with their original documents; US orders get a free FedEx label and international buyers pay return shipping. A missing diamond certificate costs $100. The FAQ page says refunds are possible for up to 7 days after delivery, so confirm the window before relying on 30 days.
How long until it ships?
JNCY says most items are made to order and take about two weeks; the product page, cart and order email show an estimated ship date. USPS shipping is free, and FedEx 2Day ($25 on US orders) does not shorten production.
Are lab-grown diamonds real diamonds?
GIA says laboratory-grown diamonds have the same crystal structure as natural diamonds, tightly bonded carbon atoms, and nearly the same chemical, optical and physical properties. By eye the difference can be indistinguishable, but gemological laboratories can detect the different growth history with advanced instruments. They are grown by high-pressure high-temperature (HPHT) or chemical vapor deposition (CVD).
Sources & verification
What this review is based on and the day we last read it. Specs and claims from the maker are the maker’s own; the verdict and the rating are ours.
From the store
- 3 ctw Lab Grown Round Diamond Certified Stud Earrings product page: specs, options and price (the buy buttons go there)Specs, options and the listed priceRead October 19, 2026
- JNCY Jewelers shipping policyFree USPS shipping, processing times, signature rules, international countries and flat feeRead October 19, 2026
- JNCY Jewelers refund policy30-day returns for pre-designed styles, final-sale and custom items, certificate feeRead October 19, 2026
- JNCY Jewelers warranty pageLifetime manufacturing warranty, free resizing and cleaning in year one, exclusionsRead October 19, 2026
- JNCY Jewelers FAQReturn wording (7 days), payment methods, care tips, international termsRead October 19, 2026
Independent
- ProvenExpert page for JNCY JewelersThree ratings, all 5.00 (two on Facebook, one on The Knot), no review textRead October 19, 2026
- GIA: simulants, moissanite and laboratory-grown diamondsLab-grown diamonds share the crystal structure and nearly the same properties as natural diamondsRead October 19, 2026
What we couldn’t verify
- The .25 in length and width are the same figures the 2 ctw round stud listing gives, so the listing does not show how the size changes with 1.50 ct stones.
- The title says Certified, but no grading lab or report number is given, and no cut grade is listed.
- Independent testing or appraisal: we found none for this piece; the only outside feedback is a ProvenExpert page with three 5.00 ratings (two Facebook, one The Knot) and no text.
- JNCY's pages disagree on the refund window (30 days on the Refund policy page, 7 days in the FAQ).
- We have not seen this piece's diamond certificate; the grades come from the listing.
Spotted an error or something out of date? Tell us and we’ll fix it and update the date.
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