Antique 5.40ct Star Sapphire and 0.40ct Diamond Platinum Cluster Ring Circa 1920

A stunning, fine and impressive antique 1920s 5.40 carat star sapphire and 0.40 carat diamond, platinum cluster ring; part of our diverse collection of gemstone cluster rings.

This stunning, fine and impressive antique cluster engagement ring has been crafted in platinum.

The pierced decorated setting is ornamented with a stunning feature millegrain decorated collet set 5.40ct cabochon cut star sapphire.

The sapphire is encompassed with eighteen pavé set transitional modern brilliant round cut diamonds.

The elevated, pierced decorated ring shoulders integrate with the main setting and blend seamlessly with the plain ring shank.

This platinum sapphire ring is hallmarked to the interior of the shank with the maker's mark (PM), in addition to marks denoting the carat weight of the sapphire (3.32); the ring has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum.

This impressive 1920s sapphire ring is supplied with an IDGL diamond and gemstone grading report card.

This antique star sapphire cluster ring from the 1920s combines the distinctive optical effect of star sapphire with the balanced elegance of a period cluster setting. The sapphire's natural asterism creates a captivating focal point, while the surrounding gemstones enhance its presence and brilliance. Its 1920s character and unusual gemstone make it particularly suited to milestone birthdays, anniversaries or as a distinctive heirloom piece to be treasured for generations.

Images do not always reflect the true colour and brilliance of gemstones and diamonds. The video however provides a truer representation of the actual colour and showcases each stone.

Condition

This stunning cabochon cluster ring is excellent quality, set with an impressive star sapphire displaying fine epiasterism and presence.

The high colour and graded diamonds display a fine white colour and brilliance.

This star sapphire ring is an excellent gauge of platinum and is in excellent condition, with a clear hallmark to the interior of the shank.

Reflections in photographs may detract from the true representation of this fine example of antique sapphire jewellery.

Sapphire Quality

Type Star

Cut Cabochon

Content 5.40 carats

Dimensions 8.38mm (average diameter) x 6.79mm (depth)

Diamond Quality

Colour (average grades) H

Clarity (average grades) SI1

Cut Transitional Modern Brilliant Round

Content 0.40 carat

Number of Diamonds

18

Dimensions

Width of setting 1.37cm/0.54'

Height of setting 8.83mm/0.35'

Ring Size

UK Size I

USA Size 4 1/4

The ring size may be professionally adjusted in size on request to meet your personal requirements.

Weight

6.22 grams

Date: Circa 1920

SKU: C9922

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