Red Ruby 1.78 CT | Oval Cut Madagascar
A richly saturated 1.78 ct oval-cut ruby from Madagascar, this gem presents an opulent scarlet body color with a refined pinkish glow the chromium-rich hue collectors prize. The oval is well proportioned and crisply polished, yielding bright, even scintillation across the crown and a high vitreous luster. Transparency is excellent for the locality, giving a luxurious face-up that holds its color from daylight to evening. At just under two carats, it offers commanding presence without sacrificing elegance perfect for a bespoke solitaire or diamond halo that showcases the stone’s vivid fire.
Gem species: natural ruby, corundum (Al₂O₃), uniaxial negative with pleochroism from red to purplish red; RI ~1.760–1.770, SG ~4.00, Mohs hardness 9 for heirloom durability. Origin: Madagascar known deposits include Andilamena and Ilakaka, renowned for chromium-luminous reds with strong fluorescence. Treatment: not determined; standard heat (and occasional flux-assisted healing) is common laboratory reporting available on request. Curated to Luminvault’s standard, this Madagascar ruby combines pedigree, durability, and investment-grade color, ready to anchor a signature jewel in 18k yellow gold or platinum.
Fully certified for authenticity and quality, comes with a sensory experience that you won't forget. Don't miss your chance to own this stunning piece of earth wonder.
Red Ruby 1.78 CT | Oval Cut Madagascar
GEM STATS CHEMICAL FORMULA Al2O3:Cr COLOR Deep Red WEIGHT
1.78 Ct SHAPE AND CUT Oval REFRACTIVE INDEX nω=1.768–1.772
nε=1.760–1.763GRADE Minor Inclusions MOHS SCALE 9.0 LUSTRE Vitreous TRANSPARENCY translucent ORIGIN Madagascar TREATMENT Natural























