129 Carat Fancy Yellow-VS2 With A 15.05ct Fancy Yellow Radiant Cut Diamond Riviera Necklace
The necklace presents 128.79 carats total weight of natural Fancy Yellow Radiant cut diamonds, with a 15.05-carat center stone anchoring a symmetrically graduated riviera arrangement, GIA certified (Rosenberg ref. 96325). Clarity spans Internally Flawless through VS2 across the suite, calibrated to preserve optical uniformity as stone diameter decreases toward the shoulders. Assembled suites of matched Fancy Yellow Radiant cuts at this combined weight represent a category where sourcing difficulty alone limits supply to a fraction of annual colored diamond market production — matching hue and saturation across a 128-carat spread requires sustained, selective acquisition over extended periods.
GIA Color and Clarity: Fancy Yellow and the IF–VS2 Range
GIA grades natural yellow diamonds on a continuum from Faint through Fancy Vivid; Fancy Yellow indicates consistent, face-up yellow saturation derived from body color alone, independent of fluorescence or color zoning. Internally Flawless — the highest clarity grade GIA issues — denotes the complete absence of inclusions or surface characteristics under 10× magnification. VS2, the suite’s minimum clarity threshold, places every stone in the very-slightly-included range, where inclusions remain invisible to the unaided eye and exert no effect on light performance.
Why Radiant Cut for a Graduated Fancy Color Suite
The Radiant cut’s modified brilliant facet structure intensifies color saturation relative to step cuts while delivering higher face-up brilliance than emerald or Asscher alternatives — a critical property when color must read consistently across stones of decreasing carat weight in a graduated format. The rectangular outline also permits close stone-to-stone placement, reducing metal exposure between units and maintaining an uninterrupted color field from center to terminal links.
18-Karat Yellow Gold Graduated Riviera Construction
The necklace is handmade in 18-karat yellow gold, the standard metal for Fancy Yellow diamond settings: its warm body color reinforces perceived saturation rather than neutralizing it, as white metals tend to do. Each stone sits in an individually sized four-prong mount that permits light entry from below while securing stones across a range of diameters. The graduated riviera configuration — decreasing symmetrically from the 15.05-carat center — follows classical necklace construction, positioning the full diamond suite in continuous contact with ambient light across the décolleté.
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.



