4.00 Ct Cushion Blue Sapphire and Diamond Three Stone Ring
4.00 Ct | Blue | Clean | Cushion Cut | Three Stone | Lab Grown Sapphire
Center: 3.50 Ct Cushion Blue Sapphire (10x8) | Side Accents: 2 Trapezoid Diamonds = 0.50 Cts | Total: 4.00 Ct | Sizes 4–9
A 3.50 Ct cushion cut blue sapphire sits at center, deep and clean, flanked by two trapezoid lab grown diamonds that echo its geometry and sharpen its color. The three stone format carries meaning, past, present, future, and this version delivers it in a stone that rivals anything mined.
The sapphire is lab grown, which means it is a real sapphire, not a simulant, not cubic zirconia. Grown using the same conditions that produce natural sapphires, it is physically and chemically identical. The accent diamonds are lab grown as well, held in place by hand in our New York City studio in the Diamond District. Sold direct from us to you, no retail markup.
Built for an engagement ring, a milestone anniversary, or a piece meant to be inherited.
- Center: 3.50 Ct Cushion Cut Lab Grown Blue Sapphire (10x8) | Clean
- Side Accent Diamonds: 2 Trapezoid Lab Grown Diamonds = 0.50 Cts
- Total Carat Weight: 4.00 Ct
- Lab Grown Sapphire: Real sapphire, not a simulant, not cubic zirconia
- 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. 50080-Sapphire
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 stone over 1ct is independently certified by IGI and laser-inscribed for verification.
Complimentary fully-insured FedEx shipping on every order, signature required on delivery. 30-day risk-free returns — full refund, no questions asked.
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.
30-Day Returns
NYC Diamond District
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