4 Carat Fancy Intense Bluish Green Cushion Cut Diamond Ring
The center stone is a 4.16-carat Fancy Intense Bluish Green Cushion cut natural diamond, GIA certified (Rosenberg ref. IP-80839). Natural green diamonds derive their color from exposure to natural radiation during geological formation — a process that is both rare and unreplicable — placing them among the least frequently encountered fancy color diamonds at any carat weight. At 4 carats with Fancy Intense saturation and a secondary blue modifier, this stone occupies a category where supply is structurally limited regardless of demand cycles.
GIA Color Grade: Fancy Intense Bluish Green
GIA grades natural green diamonds on a scale from Faint through Fancy Deep, with Fancy Intense representing the second-highest saturation tier, positioned directly below Fancy Vivid. The “Bluish” modifier indicates a secondary blue hue present face-up alongside the primary green body color — a combination that shifts the stone’s appearance toward cooler, more saturated tones and is considered highly desirable among collectors. GIA also documents the spatial origin of color in green diamonds, distinguishing surface-reaching color from full-body saturation, a distinction that directly affects the stone’s standing in the institutional and collector market.
Why Cushion Cut for Fancy Color Stones
The Cushion cut — defined by a rounded square or rectangular outline with large, curved facets and a deep pavilion — is among the most effective cutting styles for retaining color saturation in fancy color diamonds. Its broader facet pattern allows more light to dwell within the body of the stone before returning to the eye, intensifying the perceived green face-up. Compared to round brilliants with smaller, more numerous facets, the Cushion’s architecture concentrates color rather than dispersing it into white light return.
18-Karat Rose Gold Solitaire Setting
The diamond is set in a handmade 18-karat rose gold mount — a metal choice that provides chromatic contrast with the cool green of the center stone, reinforcing color distinction rather than visually absorbing it. At 75% gold content, the 18kt alloy delivers sufficient hardness for long-term prong integrity while remaining workable for custom fabrication at this scale. The solitaire construction places no competing visual elements around the center stone, ensuring the Fancy Intense Bluish Green color remains the uncontested focal point of the piece.
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Care
Preserve the brilliance of your diamond through proper care. We recommend professional cleaning annually and safe storage in a jewelry box or pouch. Avoid exposure to harsh chemicals and extreme temperatures. Learn more about our complete care guide for detailed maintenance and storage best practices.
Warranty
Every Rosenberg piece comes with a warranty covering craftsmanship and authenticity. Our warranty protects against manufacturing defects and ensures your diamond’s certified quality. For warranty details, claims, or to register your purchase, contact our specialists.
Delivery
Your diamond is shipped via insured, tracked delivery with full insurance coverage included. Packages are carefully packaged in premium materials and require a signature upon delivery. Review our shipping and delivery policy for complete details about timelines and handling.