Unique Vintage Engagement Ring Art Nouveau Marquise Diamond & Ruby/Spinel Ring Old Cut Diamond Wedding Ring 18K/14K Rose Gold Diamond Ring

Rose

Handpicked by Rose

Owner of LadyRoseVintageJewel

What to know

Materials

Rose gold, White gold, Yellow gold

Vintage

From the 1920s

Gemstone

Diamond

Unique engagement ring in an Art Nouveau style consisting of a marquise diamond and red gemstones, where the main attraction is the bezel set marquise diamond in 18K white gold. The old cut marquise diamond is measuring approximately 7.5mm x 3.5mm or 0.33 carats with three additional smaller single cut diamonds for an additional 0.12carats for a total diamond weight of approximately 0.45 carats! The marquise diamond does show a hint of color as many vintage diamonds of the era did, which some may call a cinnamon champagne diamond, estimated in the L-M color/SI2 clarity range There are also seven red colored stones which tested as spinel on a Presidium gem tester (although a few appear dichroic and are possibly melee rubies) that measure two to seven points for a total of 0.34 carats. The substantial setting measures 25 x 18mm with a 6mm rise off the finger and the 14K rosey hued yellow gold shoulder width is 3.75mm tapering to 2mm and can be sized by a trusted jeweler. There are also lovely orange blossom details on the setting which gives it that feminine touch of decorative detail that adds such wonderful character to these fabulous vintage treasures!

Center Stone: Old Cut Marquise Diamond Approximately 0.33 carats
Estimated in the L-M color/SI2 clarity range
Round Cut Diamonds: Approximately 0.12 carats
Estimated in the I-J color/SI2 clarity range
Total Diamond Weight: Approximately 0.45 carats
Red Gemstone Weight: Approximately 0.34 carats
Hallmark: None. Acid test confirms 18K white gold and 14K rose hued yellow gold
8.65 Gm Wt
Size: 7.5
Excellent Vintage Condition!
Vintage items sold in "AS IS" condition. Photos and video taken under lighting and magnified to show details.



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Price:$2,149.00

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Meet your seller

LadyRoseVintageJewel
LadyRoseVintageJewel ·

Atlanta, Georgia

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience. 5.0
·
1.4k sales
·
12 years on Etsy
Lady Rose
1 shop member

Usually responds in a few hours

Smooth shipping Has a history of shipping on time with tracking.

Speedy replies Has a history of replying to messages quickly.

Rave reviews Average review rating is 4.8 or higher.

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Wedding date
Listed on Jun 16, 2026