The Palo Alto Vintage Stud Earrings. The sizzling round diamonds really sparkle and dance accompanied by a halo of velvety blue, natural sapphires. Called a target design due to the resemblance of a bull's eye, highlighted by French cut (calibre') sapphires specifically cut to fit and set in dainty, millegrained bezels. Milgrain (the tiny beading on the bezel) was done to tone down the shine of the metal so as not to compete with the sparkle of the diamonds. The fire and brilliance of these diamonds light up across the room! An interesting take on a boring diamond stud, especially for a sapphire lover or fan of Art Deco design.


Condition: Very Good

Era: Art Deco

Year: 1940s

Metal: Platinum


Center Stone: Natural diamond

Carat Weight: 0.50 carats total

Cut: Transitional round brilliant


Color: H

Clarity: VS2 & SI1


Additional Stones:

32 French Cut natural sapphires 


Dimensions: 8.4mm W x 12.3mm L (including post)

Weight: 2.81 grams


Graded by GIA standards


Includes: Certified Appraisal $4,250, 

custom box & expedited shipping

Item Id: GR0031ERMM

Palo Alto Vintage Stud Earrings Diamond Blue Sapphire Halo Platinum Art Deco

  • For questions or special requests, please call (805) 966-1707, or email
    See this design in person at our vintage & antique estate jewelry store in Santa Barbara, California.

Bella Rosa Galleries | 1103-A State Street

Santa Barbara, CA 93101


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