Art Deco Natural Blue Zircon & Synthetic Ruby Ring in 10K Gold, Original Mona Lisa Box, c.1930s

A striking and authentic Art Deco ring dating to the 1930s, beautifully set with a vibrant natural blue zircon and flanked by rich synthetic ruby accents, and preserved in its original Mona Lisa presentation box. 

At the center rests a brilliant round natural blue zircon measuring approximately 7.0 mm in diameter and estimated at approximately 1.75 carats. The zircon displays a lively medium blue color with exceptional brilliance and dispersion characteristic of fine zircons of the period. The stone remains securely held in its original four-prong setting. Close examination reveals light abrasion to the table facets, consistent with age and typical for zircon, which does not diminish its beauty or overall presentation. 

Framing the center stone are two vertically set tubular synthetic rubies, a hallmark of Art Deco jewelry design. Their deep red hue provides a dramatic and elegant contrast to the vivid blue zircon, while the geometric arrangement reflects the clean architectural aesthetic of the Deco era. 

The mounting is crafted in solid 10K yellow gold and displays excellent period workmanship, with sculpted shoulders and crisp structural lines. The ring remains in excellent vintage condition with well-preserved detail. 

Especially noteworthy, the ring is accompanied by its original period Mona Lisa jeweler’s presentation box, a rare and desirable survival that enhances both its historical authenticity and collector appeal. 

Blue zircon was highly prized during the Art Deco era for its diamond-like brilliance and vibrant color, yet relatively few examples survive today in original mountings with their presentation boxes intact. This is a beautiful and genuine Art Deco ring, ideal for collectors, vintage jewelry enthusiasts, or as a distinctive and meaningful engagement or statement ring. 

Details 

Era: Art Deco, circa 1930s 

Metal: Solid 10K yellow gold 

Center stone: Natural blue zircon 

Zircon size: approximately 7.00 mm diameter 

Estimated zircon weight: approximately 1.75 carats 

Accent stones: Two synthetic rubies 

Accent ruby size: approximately 5mm x 2mm, cylindrical shaped 

Condition: Excellent vintage condition with age-appropriate wear to zircon facets 

Presentation: Original Mona Lisa jeweler’s box included

• Designer = Art Deco c.1930s
• Material = 10K Gold
• Metal Finish = Bright Polish
• Gemstone = Zircon
• Shape/Cut = Round
• Gem Color = Blue
• 2nd Gemstone = Created Ruby
• 2nd Shape/Cut = Tubular
• 2nd Gem Color = Red
• Weight (Grams) = 2.56G
• Ring Size = Size 6.25 - 6.50
• Condition = Very Good Vintage Condition

Item Number: 20968-12

Item ID: 108425

Category: Ring

Note: This item has been inspected and appraised by a GIA Graduate Gemologist Appraiser.

Diamond origin is tested using a GIA iD100 Gem Testing Device. Unless indicated otherwise, all diamonds are to be considered natural, earth-mined diamonds. All man-made, laboratory-grown, laboratory-created, or synthetic diamonds are well marked on the price tag as well as in the website description.

All diamond and gemstone grading is done under GIA standards as the mounting permits. All gemstone weights and measurements are approximate. Unless otherwise stated, colored gemstones may have commonly used clarity and color enhancing treatments per industry standards.

Prospective buyers should note that all jewelry we sell is 'used' and will likely have some amount of wear, we warranty that the item will be essentialy as we have described it, but no other warranties are expressed or implied, and all items are sold 'as is'.