Art Deco diamond and ruby ring (unverified)

This piece appears to be an Art Deco period cocktail ring, crafted from a white precious metal, most likely platinum or white gold, though the exact metal content remains unverified in the absence of a visible hallmark in this photograph. The rectangular-shaped mounting features a geometric motif characteristic of the 1920s to 1930s era, highlighted by intricate openwork filigree or milgrain detailing along the shoulders. Set horizontally within a raised central hexagonal bezel are two round-cut diamonds, flanked by a border of channel-set calibré-cut red rubies that form a striking contrasting halo around the center stones. The shoulders exhibit engraved floral or starburst star-like motifs typical of vintage jewelry craftsmanship. There are no maker's marks or stamps directly visible from this angle, so the identification rests entirely upon stylistic elements such as the geometric layout, calibré setting, and intricate metalwork consistent with the Art Deco period. The item shows minor surface wear appropriate for an older estate piece, but no glaring damage or missing stones are immediately apparent from this single view. This assessment is purely visual and unauthenticated.

Based on what I can see in the photograph, this piece exhibits stylistic characteristics consistent with an Art Deco period cocktail ring, featuring a geometric rectangular mounting, openwork filigree, channel-set calibré-cut rubies, and central diamonds. However, I can't verify metal content, stone quality, or exact era from a photo alone, as visual inspection cannot distinguish between period originals and high-quality vintage-style reproductions or later copies. Would need physical inspection to confirm whether the metal is platinum or white gold, whether the diamonds and rubies are natural, and if any hallmarks are present. Assuming the attribution to the Art Deco period is correct and the materials are precious, comparable estate pieces of this type typically trade in the $2,500 to $4,000 range, driven by strong modern demand for vintage geometric cocktail rings. If physical and gemological examination reveals the ring to be a modern reproduction, a replica, or a piece simply made 'in the style of' the Art Deco era with synthetic stones, the value would decrease significantly, likely falling into the $400 to $800 range. To establish a precise value and confirm authenticity, this item would require in-person examination, hallmark verification, gemological testing, and formal expert appraisal.