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Marquise|Lab Grown|IGI

0.90ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG622498277

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG622498277

Diamond specifications and retailer prices

From £149 GBP
$199 USD
As of October 27, 2026
1 retailer carries this diamond
Only listing: £149 GBP at William & Sons Jewelers
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at William & Sons Jewelers

About this 0.9ct lab-grown marquise diamond

This 0.9ct lab-grown marquise sits in the just-under-one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG622498277 or 622498277. Listed at a single retailer as of October 27, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.90
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG622498277
Dimensions5.05 × 5.05 × 10.02 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.05 mm5.05 mm0.90 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG622498277
Side View
Table 56.0%Crown 32.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: £431 GBP|Low: £113 GBP|High: £1,239 GBP|Avg: £520 GBP|-3.0%
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William & Sons Jewelers
September 27, 2026
William & Sons Jewelers£149 GBP
Retailer 7£264 GBP
Retailer 5£293 GBP
Retailer 6£312 GBP
Retailer 8£319 GBP
Retailer 1£431 GBP
Retailer 3£458 GBP
Retailer 9£514 GBP
Retailer 2£533 GBP
Retailer 4£604 GBP
Retailer 11£868 GBP
Retailer 10£916 GBP
Retailer 12£1,239 GBP

64 data points across 13 retailers

1 retailer

A
William & Sons Jewelers
cert_LG622498277 · Oct 27
£149 GBP
$199 USD
View
Final sale: no returns

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.90ct Marquise
£149 GBP