25 Carat D Flawless Emerald Cut Diamond Ring
The center stone is a 25.03-carat D Flawless Emerald cut natural diamond, GIA certified (Rosenberg ref. 93762). Diamonds of this carat weight at the D color and Flawless clarity grade represent an extreme rarity in global supply — twenty-five-carat-plus Emerald cuts carrying top-of-scale grades in both color and clarity are among the least frequently encountered stones in any auction or private sale context. The combination places this diamond in a category where supply is structurally limited regardless of market conditions.
GIA Color and Clarity: D and Flawless
GIA grades colorless diamonds on a D-to-Z scale; D is the highest possible grade, indicating the complete absence of detectable color under standardized laboratory conditions. Flawless, abbreviated FL, represents the apex of the GIA clarity scale: no inclusions and no blemishes are detectable under 10× magnification by a skilled grader. At 25 carats, the conjunction of D color and Flawless clarity is technically and statistically exceptional — both grades depend on criteria that become progressively harder to achieve as carat weight increases.
Why Emerald Cut for a D Flawless Stone
The Emerald cut is a rectangular step cut with parallel, rectilinear facets arranged in a hall-of-mirrors configuration. Unlike brilliant cuts, which scatter light into dispersed flashes, the Emerald cut produces broad, open reflections that expose the interior of the stone directly to the eye — a format that rewards only the highest clarity grades. For a D Flawless diamond, the Emerald cut functions as a display mechanism for internal perfection rather than a concealment device, making it the technically appropriate choice at this grade level.
Platinum Three-Stone Setting with Tapered Baguette Side Stones
Two Tapered Baguette side diamonds, 1.25 carats total weight and graded D VVS1, flank the center stone in a step-cut format that maintains tonal consistency across the full composition. Tapered Baguettes narrow toward the girdle of the center stone, creating a continuous linear transition that directs focus inward without generating competing light return. The mount is handmade platinum — selected for its density, 95% purity, and long-term prong integrity, properties essential for securing a stone of this weight and value across decades of wear.
Speak with an AdvisorCare
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.



