01 May 2026
The "Royal & Estate" Coll
That is a significant and highly specific stone. A 22.79-carat diamond is exceptionally rare, particularly in a square cut (likely a radiant or square emerald/Asscher cut), which requires a massive piece of rough to maintain that weight.
Carat Weight 22.79ct Extreme Rarity. This is "investment grade" size. It carries a significant premium simply for crossing the 10ct and 20ct thresholds.
Color Fancy Light Brownish YellowWarm & Earthy. The "Brownish" modifier typically lowers the price compared to a pure "Fancy Light Yellow," but it offers a unique, champagne-like warmth that many find sophisticated.
Clarity VS2Eye-Clean. At nearly 23 carats, a VS2 is excellent. While inclusions are easier to spot in large step-cuts (emerald cuts), a VS2 ensures the stone looks pristine to the naked eye.
Fluorescence StrongThe Wildcard. In yellow diamonds, strong fluorescence (usually blue) can sometimes make the color appear slightly "oily" or milky in sunlight, but it can also brighten the appearance.Certification
GIA The Gold Standard. For a stone of this magnitude, a GIA cert is non-negotiable for verifying the "Fancy" color origin and grade.
The "Brownish" Factor: In the world of colored diamonds, "Brownish" is often viewed as a value entry point. You get the massive scale of a 22ct stone for a fraction of the price of a "Fancy Intense Yellow" or a "D-Colorless" stone.
The Cut: A square emerald cut (often referred to as an Asscher if the facets are arranged specifically) is very "honest." Its large, open windows don't hide inclusions or color unevenness well. If this stone looks crisp at VS2, the crystal quality is high.
Fluorescence Interaction: In a "Brownish Yellow" stone, Strong Blue Fluorescence can actually be a benefit. Because blue is the complementary color to yellow, it can sometimes neutralize the yellowish-brown tint in natural daylight, making the stone look "cooler" or more "white" than its grade suggests.

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