26 Carat F VS1 Multi Shape Diamond Necklace
The total diamond weight is 25.43 carats, distributed across a multi-shape composition of GIA-certified natural diamonds, each grading F color and VS1 clarity (Rosenberg ref. 6398). Assembling over twenty-five carats of uniformly graded white diamonds — matched across dissimilar shapes for both color and clarity — represents a sourcing challenge that places this necklace among the rarest configurations in contemporary high jewelry. At this total weight and grade consistency, supply is structurally limited regardless of market conditions.
GIA Color and Clarity: F Color, VS1 Clarity
On the GIA D-to-Z color scale, F color falls within the colorless range, one grade below D, and is visually indistinguishable from D or E to the unaided eye under normal viewing conditions. Calibrating multiple diamonds cut in different shapes to a single F color standard requires stones sourced and selected across separate production runs — a precision that becomes exponentially more demanding as total carat weight increases. VS1 clarity indicates that inclusions are minor, require magnification to detect, and impose no reduction in light performance at any individual stone weight present in this necklace.
Multi-Shape Architecture and Light Distribution
A multi-shape composition allows for variable facet patterns across the piece, generating differentiated optical output at each position along the necklace. Rather than uniform repetition of one cut, distinct shapes — each producing its own balance of brilliance, fire, and scintillation — create visual movement as the necklace responds to light from different angles. The shared F/VS1 grade across all components maintains chromatic cohesion despite the variation in form.
Platinum Setting and Construction
The necklace is handmade in platinum, the standard metal for colorless diamond settings due to its naturally white reflectivity, which avoids imparting warmth to adjacent stones. Platinum’s density and 95% purity provide the structural integrity necessary to secure diamonds of differing shapes and sizes across a continuous collar format — a construction that demands precise individual mounting for each stone within the overall layout.
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.



