20 Carat D VS2 Cushion Cut Diamond Ring
The center stone is a 20-carat D VS2 Cushion cut natural diamond, GIA certified (Rosenberg ref. 700803). Twenty-carat D-color diamonds are among the rarest configurations encountered in the white diamond market — stones of this weight at the absolute colorless apex of the GIA scale represent a vanishingly small fraction of annual certified submissions globally. The convergence of maximum color grade, high clarity, and a cut historically associated with the most significant collector stones places this diamond squarely within the Important Whites tier.
GIA Color and Clarity Grading at This Scale
D color is the highest designation on the GIA D-to-Z color scale, indicating complete absence of detectable body color under standardized viewing conditions. At twenty carats, body color becomes increasingly difficult to suppress — the sheer volume of material amplifies any tint, making a D grade at this weight a structural rarity rather than a grading formality. VS2 clarity places the stone in the very-slightly-included range: inclusions are not detectable by the unaided eye and impose no interference on light transmission through the pavilion.
Why Cushion Cut for an Important White Diamond
The Cushion cut’s rounded-corner outline combined with a modified brilliant facet structure delivers broad, diffuse light return and a characteristic soft-flash scintillation pattern that distinguishes it from round brilliants and step cuts alike. For a colorless diamond of extreme carat weight, the Cushion’s deeper pavilion and larger table facets maximize face-up surface area while maintaining the brilliance performance expected in this grade range. The cut’s long association with historically significant diamonds reinforces its standing as the reference form for collector-grade whites above fifteen carats.
Three-Stone Platinum Construction
Two side diamonds flank the center stone in a handmade platinum three-stone mounting. Platinum’s 95% purity, density, and resistance to prong deformation over extended wear make it the standard metal for settings housing investment-grade stones. The three-stone configuration directs structural load symmetrically across the mounting while framing the center diamond without generating competing visual weight — a proportional relationship critical at this carat scale.
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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.