4.02 ct Elongated Cushion Lab Grown Diamond (Colour H, Clarity VS1, IGI Certified)

Four Carats. Exceptional Clarity. The Elongated Cushion.

The elongated cushion cut is one of the most romantic and sought-after diamond shapes in contemporary fine jewelry — a soft, pillow-like silhouette with rounded corners and a longer profile that flatters the finger beautifully while delivering the pillowy, warm brilliance that has made the cushion cut beloved for generations. At 4.02 carats of H color and VS1 clarity, independently certified by the International Gemological Institute, this stone pairs a strong near-colorless color grade with exceptional clarity — a combination that delivers a completely eye-clean, brilliantly performing diamond at a price that makes four carats of elongated cushion genuinely accessible.

The Specifications

• Carat Weight: 4.02 Carats
• Shape: Elongated Cushion — A cushion cut with a longer length-to-width ratio; combines the cushion's soft, rounded corners and pillowy brilliance with an elongated profile that flatters the finger and maximizes face-up presence
• Color: H — Near-colorless; H color in a cushion cut appears white and brilliant to the naked eye in virtually all settings and lighting conditions — an excellent value choice that delivers the look of a colorless diamond at an accessible price
• Clarity: VS1 — Very Slightly Included, first degree; inclusions invisible to the naked eye and extremely difficult to detect even under 10x magnification — the stronger of the two VS clarity grades, delivering exceptional transparency and brilliance
• Certification: IGI Certified — International Gemological Institute; independent third-party verification of color, clarity, cut, and carat weight
• Origin: Lab-Grown — Physically, chemically, and optically identical to a mined diamond; conflict-free and ethically sourced

H Color and VS1 Clarity: The Clarity-First Choice

Every diamond buyer makes a trade-off between color and clarity at a given price point — and H/VS1 represents a deliberate, intelligent choice to prioritize clarity. VS1 is the stronger of the two VS grades, delivering inclusions that are invisible to the naked eye and extremely difficult to find even under magnification. H color in a cushion cut appears white and brilliant in virtually all conditions — the cushion's brilliant faceting pattern is highly effective at masking warmth, making H an excellent color choice for this shape. Together, H/VS1 delivers a stone that is completely eye-clean, brilliantly performing, and genuinely beautiful at a price that reflects real value.

The Elongated Cushion: Romantic, Flattering, Unmistakable

The elongated cushion cut occupies a unique position in the diamond shape landscape — softer and more romantic than the emerald or radiant cut, more distinctive and finger-flattering than the standard round cushion. Its longer length-to-width ratio creates a larger face-up appearance and a more elongating effect on the finger than a square cushion of the same carat weight, while its rounded corners and brilliant faceting deliver the warm, pillowy light performance that cushion cut lovers prize above all else. At 4.02 carats, the elongated cushion's presence on the hand is genuinely extraordinary.

The Diana Connection

The elongated cushion is the same diamond shape featured in The Diana — our 5.51 carat named original engagement ring. If you love the shape of The Diana and are considering a custom ring around a stone of your own choosing, this 4.02 carat H/VS1 elongated cushion offers the same romantic silhouette at an accessible price point. Contact us to discuss custom setting options inspired by The Diana or any other design.

IGI Certified: Complete Confidence

This diamond is certified by the International Gemological Institute (IGI), providing independent, third-party verification of every quality characteristic. The IGI certificate travels with the stone and provides permanent documentation of its H color, VS1 clarity, elongated cushion cut, and 4.02 carat weight.

Setting Recommendations

A 4.02 carat elongated cushion is most beautifully showcased in settings that honor its soft, romantic silhouette — a simple four-prong solitaire, a hidden halo that adds brilliance without obscuring the cushion's outline, or a three-stone setting with half-moon or tapered baguette side stones. Yellow gold is a particularly beautiful pairing for H color, as the warm metal tone complements the stone's warmth naturally. White gold and platinum also work beautifully for a cooler, more modern look. Contact us to discuss custom setting options.

Perfect For

• A custom engagement ring center stone with exceptional clarity and romantic cushion brilliance
• A buyer who prioritizes VS1 clarity and wants a completely eye-clean four-carat elongated cushion
• Anyone inspired by The Diana who wants to build a custom ring around their own elongated cushion

A 4.02 carat IGI certified elongated cushion at H/VS1 is an exceptional value. Contact us with any questions or to discuss custom setting options.