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PL180

18ct Gold & Platinum Illusion Diamond Engagement Ring

A beautiful vintage 18ct yellow gold and platinum diamond solitaire engagement ring, featuring a natural 0.40ct round brilliant-cut diamond, graded I colour and VS clarity. The decorative platinum illusion setting measures approximately 6.5mm across, creating the visual impression of a substantially larger diamond. Hallmarked at the Birmingham Assay Office in 1989, with the original WEG sponsor's mark, this elegant ring features a polished 2mm yellow gold band with pierced shoulders. Weighing 3 grams, it has been fully refurbished and is available in UK finger size O. One available only.

18ct Gold & Platinum Illusion Diamond Engagement Ring Main Image


£935.00
Price includes tax and shipping

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Vintage Diamond Solitaire with a Platinum Illusion Setting


This elegant vintage diamond engagement ring combines the warmth of 18ct yellow gold with a beautifully detailed platinum setting, designed to maximise the visual presence of its central diamond.

The natural round brilliant-cut diamond weighs approximately 0.40 carats, with an attractive I colour and VS clarity grading. Its near-colourless appearance is complemented by the bright white platinum setting, helping to emphasise the diamond's natural brilliance.

Rather than relying on a conventional four or six-claw solitaire mount, the diamond is surrounded by a decorative arrangement of polished platinum sections and fine claws.

These create a scalloped, almost floral appearance around the stone, extending the overall setting diameter to approximately 6.5mm — comparable to the diameter of a one-carat round brilliant-cut diamond.

The illusion setting creates additional visual impact without requiring a larger central diamond, making this an attractive example of traditional diamond jewellery design.

Vintage Diamond Solitaire with a Platinum Illusion Setting


This elegant vintage diamond engagement ring combines the warmth of 18ct yellow gold with a beautifully detailed platinum setting, designed to maximise the visual presence of its central diamond.

The natural round brilliant-cut diamond weighs approximately 0.40 carats, with an attractive I colour and VS clarity grading. Its near-colourless appearance is complemented by the bright white platinum setting, helping to emphasise the diamond's natural brilliance.

Rather than relying on a conventional four or six-claw solitaire mount, the diamond is surrounded by a decorative arrangement of polished platinum sections and fine claws.

These create a scalloped, almost floral appearance around the stone, extending the overall setting diameter to approximately 6.5mm — comparable to the diameter of a one-carat round brilliant-cut diamond.

The illusion setting creates additional visual impact without requiring a larger central diamond, making this an attractive example of traditional diamond jewellery design.


Elegant Yellow Gold Band with Openwork Shoulders


The diamond setting is supported by a polished 18ct yellow gold band, measuring approximately 2mm wide.

The shoulders rise gently towards the platinum mount, incorporating attractive pierced details beneath the setting. These openings create a lighter, more delicate appearance while highlighting the contrast between the yellow gold and white platinum.

The ring has a total weight of 3 grams, combining a comfortable band with a prominent, beautifully detailed diamond setting.

Birmingham Hallmarked in 1989

The ring retains its original British hallmark, including the WEG sponsor's mark, Birmingham Assay Office stamp, 18ct gold marking and date letter P for 1989.

Its traditional illusion setting and contrasting precious metals give the ring an appealing vintage character, offering an alternative to modern diamond solitaire engagement rings.


Professionally Refurbished Pre-Loved Jewellery


Carefully selected for our pre-loved diamond jewellery collection, this ring has been fully refurbished and polished, restoring its beautiful finish while retaining its original design.


Available in UK finger size O, it offers an attractive combination of natural diamond quality, traditional craftsmanship and distinctive styling.

Only one available from Serendipity Diamonds, ready to purchase online or view at our Isle of Wight jewellery showroom.

Product Specifications


DetailSpecification
Jewellery TypeDiamond Solitaire Engagement Ring
StyleVintage Illusion Set Solitaire
Main Metal18ct Yellow Gold
Setting MetalPlatinum
Diamond TypeNatural Diamond
Diamond CutRound Brilliant
Diamond WeightApprox. 0.40ct
Diamond ColourI
Diamond ClarityVS
Overall Setting DiameterApprox. 6.5mm
Setting StyleDecorative Scalloped Platinum Illusion
Shoulder DesignPierced / Openwork
Band WidthApprox. 2mm
Ring Weight3g
Finger SizeUK O
Sponsor's MarkWEG
Assay OfficeBirmingham
Date LetterP – 1989
Gold Mark18
ConditionExcellent, Fully Refurbished
AvailabilityOne Only





Pre-loved, cherished jewellery from Serendipity Diamonds


For your reassurance, all items of pre-loved jewellery undergo a detailed inspection, followed by full refurbishment to present the item in pristine condition ready to wear. In addition, we provide...

Complete before and after-sales support

Fast delivery - items are available from stock

7 days returns (

Free Worldwide shipping)

If you require a Valuation for Insurance we can provide this on request £25.00 cost

Pre-owned items may be sold under the VAT Margin Scheme. VAT is not separately itemised.



Vintage 0.40ct Illusion Diamond Ring | 18ct Gold & Platinum
Vintage 0.40ct Illusion Diamond Ring | 18ct Gold & Platinum Side View
Vintage 0.40ct Illusion Diamond Ring | 18ct Gold & Platinum in Ring Box