JNCY 1 ctw Lab Diamond Round Prong Stud Earrings Review
Round lab-grown diamond studs with two stones totaling 1.00 ctw, set in prongs with push backs, in 14k white or yellow gold at $745. The title says Certified; the listing names no lab. It suits someone who wants a plain pair at 1.00 total carat weight.
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Our verdict
A pair of round lab-grown diamond studs at 1.00 total carat weight in white or yellow gold for $745, for someone who wants prong-set stones with color and clarity stated. Look elsewhere if you need a cut grade or a named lab behind the Certified label in the title; the listing text gives neither.
- Best for
- Someone who wants prong-set round lab-grown diamond studs at 1.00 total carat weight.
- Skip if
- You need a cut grade or a named lab or report behind the Certified label.
Why 3.9/5: Lifted by a full spec sheet with stone weight, color and clarity plus a Certified label in the title; held back by the missing cut grade and the lack of any named lab or report.
Two round lab-grown diamonds of .50 ct each, adding up to 1.00 total carat weight, make up this JNCY stud pair. The listing describes the setting as prong with push backs and offers 14k white gold or 14k yellow gold at $745. The title uses the word Certified while the listing text names no grading lab or certificate.
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 | .50 |
| Diamond Total Carat Weight | 1.00 |
Options and pricing
The variant list shows two variants, 14k white gold and 14k yellow gold, both at $745. The listing limits rhodium plating to white gold. The stone size is fixed at .50 ct per diamond with a length and width of .25 in, and the back is a push back. The page offers no choice of carat weight, shape or setting for this listing.
How it compares
At $595 the 3/4 ctw Lab Grown Round Diamond Certified Stud Earrings use the same prong setting and the same Near Colorless (F-G) and VS grades, with a smaller stone weight than the 1 ctw here at $745. The 1/2 ctw Marquise Lab Grown Diamond Three-Stone Fashion Earrings list $895 and are named as a three-stone fashion style rather than a stud.
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
- Two round lab-grown diamonds at .50 ct each, 1.00 total carat weight, with color (F-G) and clarity (VS) stated
- Two gold colors at one $745 price
- Prong setting, push back and .25 in length and width are listed
Worth noting
- No cut grade is listed for the diamonds
- The Certified label appears only in the title; the listing gives no certificate or lab
- Rhodium plating applies to white gold only, so the white gold pair has a different finish from the yellow
Questions before you buy
What are the stones in the 1 ctw stud earrings?
Two round lab-grown diamonds at .50 ct each, 1.00 total carat weight, graded Near Colorless (F-G) with VS clarity and set in prongs.
Which metals are available?
14k white gold and 14k yellow gold, both at $745. The listing says rhodium plating applies to white gold only.
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
- 1 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
- Certified appears only in the title; the description and spec lines say nothing about who graded the stones.
- No cut grade is given for the stones.
- 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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