Art Deco Platinum Three Stone Diamond Ring – Old Mine Cut Center, Vintage Illusion Box Setting | Petra Star

Channel timeless elegance with Petra Star's vintage Art Deco three stone diamond ring, a rare masterpiece from the glamorous 1920s-30s era. This classic design features a prominent 0.63 ct Old Mine Cut diamond, cherished for its vintage cushion silhouette and warm brownish pink hue (top lot brown, C3-4), set securely in a crisp platinum box mounting. Two single cut side diamonds (total 0.11 ct, I/J color, SI1-SI2 clarity) are pavé-set in illusion box settings, enhancing brilliance and symmetry across the band.

Expertly fabricated in solid platinum (marked "10% IRID. PLAT"), this meticulously restored ring embodies Art Deco’s geometric lines and understated luxury. With a low profile for daily comfort and a height of just 5.6 mm off the finger, it measures 5.5–1.1 mm wide and fits a finger size 4 (with sizing options available). Weighing 3 grams, it is a substantial, collectible heirloom for antique jewelry enthusiasts.

Era: Circa 1920–30s, authentic Art Deco
Center Diamond: 0.63 ct Old Mine Cut, 4.87 x 4.99 x 4.13 mm, top lot brown (C3-4), I1/I2 clarity
Side Diamonds: 2 single cuts, 0.11 cts total, 2.4 mm each, I/J, SI1–SI2 clarity
Setting: Platinum, box and illusion mountings (“10% IRID. PLAT”), 5.5–1.1 mm width, 5.6 mm high off finger
Size: US 4 (inquire for resizing)
Weight: 3 grams

Art Deco three stone rings are beloved symbols of the past, present, and future—making them perfect for engagement, anniversary, or simply everyday elegance. Their geometric precision, old European and single cut diamonds, and platinum mounts mark them as true collectibles for lovers of antique jewelry and lasting style.