30 Carat D Flawless Cushion Cut Diamond Earrings
This matched pair consists of two GIA-certified natural Cushion cut diamonds totaling 30.00 carats, each graded D color and Flawless clarity (Rosenberg ref. 96617). Matched pairs at this aggregate weight occupying the apex of both the GIA color and clarity scales are among the rarest configurations in the earring category — double-digit total carat weight at D/FL represents a structurally limited segment of annual GIA submissions, and achieving a calibrated match across two stones of this size compounds that scarcity further.
GIA Color Grade D and Flawless Clarity
On the GIA D-to-Z color scale, D is the highest attainable designation, indicating a diamond with no detectable body color when assessed face-down against a white reference environment under controlled lighting. Flawless clarity — the apex of the GIA clarity scale — signifies the complete absence of inclusions and surface blemishes under 10× magnification by a trained grader. The combination of D color and Flawless clarity at 15 carats per stone represents the theoretical maximum on both primary quality axes simultaneously, a pairing encountered in a fraction of a percent of all diamonds submitted to GIA.
Why Cushion Cut at This Grade Level
The Cushion cut’s modified brilliant facet arrangement generates broad light return and dispersed flash patterns that foreground the optical purity inherent in Flawless-grade material, while avoiding the mirror-like windowing effect of step cuts that can visually flatten a stone’s interior at large sizes. The Cushion’s rounded corners also reduce girdle vulnerability to impact fracture — a structural consideration relevant in earrings subject to daily contact with surfaces and clothing.
Platinum Setting and Earring Construction
The stones are set in handmade platinum prong mounts engineered to minimize metal coverage across the table and allow unobstructed light entry from all lateral angles. Platinum’s 95% purity and high density provide the long-term prong integrity required to secure stones of this weight without the gradual metal fatigue associated with white gold alloys under sustained use. The earrings are fitted with post-and-omega clip backs, a configuration that distributes the load of substantial carat weight evenly and maintains consistent stone orientation throughout wear.
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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.