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GIA-Certified 1.06 Carat Ruby in Deco-Era Platinum Ring with 0.7 Carats Diamonds

About the Item

This late Deco Era ring was originally set with an oval diamond but it was weirdly dark -- much too dark to stand up to its bright and clean supporting diamonds -- so we reset it with a beautiful, rich red ruby. The ring is platinum, extremely well made and well-maintained. We know its previous owner so we can say with some assurance it was made in the 1930s. It's pavé-set with a row of six single-cut diamonds on the top and bottom, with six straight baguettes channel-set in little half-barrels on the sides. All diamonds are earth-mined, untreated and very clean. Eytan rates their color between G and I. For clarity, he thinks they're easily in the VS range, with the baguettes squarely in the VS1 camp or better. The ruby is around 15 years old and was mined in Thailand. It's a mixed cut oval, meaning the top of the stone is faceted like a brilliant cut diamond but the bottom is faceted in a traditional checkerboard step cut. This is a standard cut for colored gemstones. The ring comes with a new (July of 2023) GIA report certifying the stone is untreated except for heat (which a customary permanent treatment to which nearly all rubies are subjected). Currently this ring is a size 5-1/4; resizing is complimentary for full-price buyers and negotiable otherwise. Weights & Measurements: Ring face: 14.5mm wide x 10.3mm tall Band width: 1.6mm Band thickness: 1.0mm Round diamond weight: 0.36 carats (0.03 carats per 2mm stone) Baguette weight: 0.36 carats (0.06 carats per 2.5mm x 2mm stone) Total estimated diamond weight: 0.72 carats Ruby measurements: 6.2mm x 5.3mm x 3.3mm Ruby weight (certified): 1.06 carats Ring weight: 6.4 grams The ring is stamped 90% IRID PLAT, which means it's 90% pure platinum alloyed with iridium, a metal in the platinum family. This was the standard American recipe for platinum for most of the last century, but not commonly used in other countries, so it always brands an item as American-made. There are no maker's marks.

Ring Size:

5.25 US, Resizable

Metal:

Platinum

Stone:

Diamond,White Diamond,Ruby

Stone Cut:

Mixed Cut

Weight:

1.06 ct

Style:

Art Deco