Burma No Heat Ruby and Diamond Three-Stone Ring by Marcus & Co.

As if a single ember were held between two stars.

At its center, a Burmese ruby—unheated, unaltered—glows with a quiet, sovereign intensity, its crimson depth softened only by time. On either side, two old European cut diamonds lend their white, flickering brilliance, their proportions generous, their light diffused like candlelight through crystal. The mounting, delicately wrought in platinum topped gold, is laced with antique diamond accents—old mine and rose cuts—that shimmer like fine embroidery, a testament to the refined hand of Marcus & Co. at the height of the Belle Époque.

Balanced yet alive, the composition speaks to a moment when jewelry was not merely worn, but composed—each stone a note, each facet a breath.

• Maker: Marcus & Co.

• Period: Circa 1900

• Metal: Platinum topped 18k yellow gold

• Stones:

– 1.92 carat round Burmese ruby (AGL certified, no heat)

– 1.49 carat old European cut diamond (F color, SI1 clarity, GIA certified)

– 1.27 carat old European cut diamond (E color, VS2 clarity, GIA certified)

– Accented with old mine and rose cut diamonds

• Ring Size: 5.75 (sizable)

• Signed: M & CO.

• Origin: United States

• Condition: Excellent antique condition

A ring for the collector who understands that true rarity does not announce itself—it glows.