4.65 Carat Color Change Garnet Facet Rough – Great Shape 9x8x7mm Tanzania For Sale

Unlock a rare optical wonder with this premium 4.65-carat color change garnet facet rough sourced from the world-renowned gem fields of Tanzania. Unmodified and entirely natural, this piece is an exceptional find specifically curated for gem professionals, precision faceters, and investment collectors.
This stone boasts a dramatic and distinct color shift, transitioning from a rough, warm yellow under LED to a delicate, pastel pink under incandescent lighting. Garnets exhibiting this specific, sharp color transition are incredibly rare, making this a highly prized addition to any gem collection or high-end custom jewelry project.
Gemstone Specifications:

Weight: 4.65 carats

Dimensions: 9.0 x 8.0 x 7.0 mm

Color Behavior: Sharp color change from Yellow (white light) to Pastel Pink (Incandescent)

Origin: Tanzania

Shape/Cut: Uncut / Facet Rough

Treatment: None (100% Natural, Unmodified)

Yield & Rarity Profile

The shape with the two out jutting, what I will call horns, modifys your yield a little.

Conservative Yield (20% – 25%): 0.93 to 1.16 carats (This assumes you have to cut heavily into the sides to clear out the crevice separating the two horns).

Optimized Target Yield (25% – 28%): 1.16 to 1.30 carats (Achievable if a specialized cut allows the lapidary to nestle the crown of the gem neatly right beneath the valley of those two horns). Estimates Only... There's many a slip Twixt The Fork And The Lip.

Square Cushion or Antique Cushion Cut: This I think is your best option but must be adapted. By rounding the corners slightly and pulling the dimensions to roughly a 5.5 mm x 5.5 mm finished size, you can maximize the 7.0 mm depth to create a beautifully high crown and deep pavilion. This nests the gem perfectly under the crevice of the horns.

Round Brilliant / Portuguese Cut: Because your functional length and width are now nearly identical (around 8.0 x 7.5–8.0 mm), a round shape becomes highly viable. A Portuguese cut features many small, nested facets that excel at gathering light in lighter-toned, champagne-to-pink color-change stones like this one, minimizing "extinction" (dead black spots) in the center.

Asscher or Square Radiant Cut: An Asscher cut features stepped facets that can follow the natural blocky contour of the bottom half of this stone while stepping inward aggressively at the top, helping to bypass the jagged surface texture on the upper corners.

Collector's Rarity: True color-change garnets are among the rarest phenomena in the gem kingdom. Finding rough material with an obvious transition into a soft pastel pink is exceptionally unusual, ensuring this finished stone will command a premium.

Maximizing the Color Change ColorStone Has a stunning shift from a warm, golden-champagne/amber yellow under an L.E.D light source to a vibrant orchid pink/purplish-pink under Daylight Or Incandescent.

Avoid Windowing: Because the color is a lighter, pastel hue rather than a dark, over saturated garnet, you absolutely cannot afford a "window" (a dead spot in the middle where light passes straight through). The deep 7.0 mm dimension is your greatest asset here.

Facet Selection: I suggest you use a high number of pavilion facets (similar to a modified cushion or round brilliant) to bounce the light around internally as much as possible. This extra optical path length will intensify both the golden and the pink body colors, making the final gemstone appear much more saturated than the rough does right now.

Shipping & Combined Ordering

USA Shipping: Fast and reliable shipping to the United States is fully guaranteed and hassle-free.

Combined Shipping Discount: Expand your collection and save! Pay only $0.50 shipping for each additional item added to your order.

Risk-Free 100% Satisfaction Guarantee

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