











4.00 Ct F VS1 Elongated Cushion Solitaire Lab-Grown Diamond Ring
Ships in 5 business days
4.00 Ct | F Color | VS1 Clarity | Elongated Cushion Cut | Solitaire | IGI Certified
Main Diamond: 4.00 Ct Elongated Cushion | Total Carat Weight: 4.00 Ct | Sizes 4–9
Four carats in an elongated cushion solitaire is a serious stone in a serious setting. The elongated cushion silhouette maximizes the visual spread of the diamond while keeping the profile clean — nothing competes with the center stone because nothing else is there. F Color and VS1 Clarity mean you are looking at a near-colorless, eye-clean diamond with no asterisks. IGI certified, laser-inscribed, and handset in our New York City studio in the Diamond District.
Lab-grown diamonds are real diamonds — not simulants, not cubic zirconia. Grown under the same conditions as mined stones, graded to the same standards, and sold direct from the maker so your investment goes into the diamond, not a retail markup.
Built for an engagement, a milestone anniversary, or any moment that calls for something real and lasting.
- Main Diamond: 4.00 Ct Elongated Cushion Cut Lab-Grown Diamond
- Color: F
- Clarity: VS1
- Total Carat Weight: 4.00 Ct
- IGI Certified + Laser Inscribed
- Lab-Grown Diamond: Real diamond, chemically identical to mined
- Available in: 14K White Gold | 14K Yellow Gold | 14K Rose Gold | 18K White Gold | 18K Yellow Gold | 18K Rose Gold | Platinum
- Ring Sizes: 4–9
- Handcrafted in New York City | Free US Shipping
- Style No. 50023
Every Zack & Elle diamond is grown in a controlled environment in months rather than mined over millennia — but chemically, optically, and physically, it is identical to an earth-mined diamond. Each individual diamond of 1.00 carat and above is independently certified by IGI and laser-inscribed for verification.
Complimentary fully insured FedEx shipping within the US, signature required on delivery. Dispatch time is shown above the Add to cart button; FedEx transit is 1–2 business days after that. 30-day returns on unworn pieces; a $75 insured return-label fee is deducted from your refund.
Certification is per individual diamond, not per pair or per piece. Every diamond of 1.00 carat and above arrives with its own IGI grading report, and the report number is laser-inscribed on the stone's girdle — verify it anytime at igi.org. Diamonds under 1.00 carat (for example a 1 ct total-weight pair, which is two 0.50 ct stones, or the stones in tennis bracelets and eternity bands) are graded to the same standards but are not individually certified.
Yes. A lab-grown diamond is chemically, physically, and optically identical to a mined diamond — the same material, simply grown above ground instead of mined. It tests as a diamond on any standard diamond tester.
Because the diamond is grown in weeks rather than mined over millennia, and we sell direct, you get the same beauty, certification, and durability for a fraction of the price of a comparable mined diamond.
Clean gently with warm water, a drop of mild soap, and a soft brush, then pat dry. Store each piece separately to avoid scratching. Reach out any time if you have questions about care.
Questions? Call or text (646) 532-9004 — real humans in our NYC Diamond District studio.
30-Day Returns
NYC Diamond District
Lifetime Care
Choose options












Diamond Details
| Shape | Elongated Cushion |
| Total Carat Weight | 4.00 ct |
| Color | F |
| Clarity | VS1 |
| Certification | IGI Certified |
Customer Reviews
★★★★★ 5.0 · 2 reviewsVerified-purchase reviews for this piece, originally left by buyers on our eBay store (Zack and Elle Diamonds — 100% positive feedback, 8,600+ items sold). Shown unedited, with eBay’s own masked buyer IDs.
