GIA Certified Antique Edwardian Deep Unheated Star Ruby Colorless Nearly Flawless Diamond Ring (20 ct. tw.) in Platinum
GIA Certified Antique Edwardian Deep Unheated Star Ruby Colorless Nearly Flawless Diamond Ring (20 ct. tw.) in Platinum shown on a hand (light skin tone)GIA Certified Antique Edwardian Deep Unheated Star Ruby Colorless Nearly Flawless Diamond Ring (20 ct. tw.) in Platinum shown on a hand (medium skin tone)GIA Certified Antique Edwardian Deep Unheated Star Ruby Colorless Nearly Flawless Diamond Ring (20 ct. tw.) in Platinum shown on a hand (medium deep skin tone)GIA Certified Antique Edwardian Deep Unheated Star Ruby Colorless Nearly Flawless Diamond Ring (20 ct. tw.) in Platinum shown on a hand (deep skin tone)

GIA Certified Antique Edwardian Deep Unheated Star Ruby Colorless Nearly Flawless Diamond Ring (20 ct. tw.) in Platinum

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GIA Certified Antique Edwardian Deep Unheated Star Ruby Colorless Nearly Flawless Diamond Ring (20 ct. tw.) in Platinum

GIA Certified Antique Edwardian Deep Unheated Star Ruby Colorless Nearly Flawless Diamond Ring (20 ct. tw.) in Platinum

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The Story

This ring is a ravishing survival of the Edwardian period, over a century old.  The star ruby and diamond ring holds a deep purple-red cabochon at its center, and a six-ray star crosses the dome as your hand turns.  GIA examined the stone and found it unheated.

Eighteen carats of ruby stand in the dome of this star ruby and diamond ring, cut as a double cabochon so the purple-red carries all the way through the stone.  An unheated ruby at this size is a genuine rarity.  Ruby is July’s birthstone, and early cultures believed it carried the power of life.  Old European cut diamonds and old single cut diamonds fill the milgrained openwork platinum of this star ruby and diamond ring, every one F color and VVS2 clarity—colorless and nearly flawless.  A change of angle brings a fresh set of those diamonds forward at once and from more than one direction, while the ruby glows even and saturated across its whole face.  The ruby is natural and earth-mined, as is every diamond around it.  Each and every piece at Jewelry Depot is one-of-a-kind.  Once it’s gone, it’s gone forever.

This antique ring is a statement piece, and the day you put it on is yours to pick.  Eighteen carats of ruby stand high off your finger, and a hundred and more years on, the star still travels as you move.  You will love how it looks on.

Details + Specifications

Total Carat Weight (CTW) 20.02 carats
Metal Platinum
Main Gemstone Natural Earth Mined Ruby
Main Gemstone Weight 18.00 carats
Main Gemstone Shape & Cut Cabochon

Certifications

GIA Report: 2245023650

*GIA: Gemological Institute of America; EGL: EGL USA Gemological Laboratory


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Diamond & Gemstone Grading

All gemstone carat weights (CTW), if mentioned, are approximate if said gemstones have not been weighed before mounting, i.e., weighed as a loose stone.

All Diamond and Color Gemstone grades, unless otherwise indicated, are based upon the results of the examination and grading of the article(s) based upon the application of the system and testing equipment used by Jewelry Depot at the time the article(s) is (are) examined.  Diamond and Color Gemstone grading is not considered a science, and opinions may reasonably vary depending on many conditions such as lighting, grading techniques, type and condition of equipment, and/or the ability and experience of the person or people performing the examination and issuing the gradings.

The information contained in EGL USA Reports is the result of the examination and grading of the article(s) based upon the application of the system and testing equipment used by EGL USA at the time the article(s) is (are) examined.  Gemstone grading is not considered a science, and opinions may reasonably vary depending on many conditions such as lighting, grading techniques, type and condition of equipment, and/or the ability and experience of the gemologist.

For GIA Graded Diamonds and Color Gemstones, please see https://www.gia.edu/terms for a full explanation of the merits and limitations of GIA Reports.

Image Scale & Size 

Some product images on Jewelry Depot may be AI-generated or digitally enhanced for visualization. These images may not be to exact scale. The item you receive will match the specifications listed on this page (including mm/in measurements, carat weight, and metal weight where provided). Perceived size can vary based on screen settings, camera angle, zoom, and how jewelry sits on different hands, ears, necks, and wrists. If precise fit or proportion is critical, please contact us before purchase, and we will confirm measurements and provide additional references when available.