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Marquise|Lab Grown|IGI

0.71ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG649499168

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG649499168

Diamond specifications and retailer prices

From £158 GBP
$212 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: £158 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 0.71ct lab-grown marquise diamond

This 0.71ct lab-grown marquise sits in the half to three-quarter carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG649499168 or 649499168. Listed at a single retailer as of November 2, 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

0.71
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG649499168
Dimensions9.54 × 4.64 × 2.81 mm
L/W Ratio2.06
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
9.54 mm4.64 mm0.71 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG649499168
Side View
Table 58.0%Crown 32.5°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 60.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: £462 GBP|Low: £127 GBP|High: £888 GBP|Avg: £462 GBP|-7.8%
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William & Sons Jewelers
October 1, 2026
William & Sons Jewelers£158 GBP
Retailer 11£315 GBP
Retailer 5£339 GBP
Retailer 3£364 GBP
Retailer 6£431 GBP
Retailer 8£440 GBP
Retailer 9£456 GBP
Retailer 1£462 GBP
Retailer 2£469 GBP
Retailer 4£559 GBP
Retailer 7£620 GBP
Retailer 10£888 GBP

60 data points across 12 retailers

1 retailer

A
William & Sons Jewelers
cert_LG649499168 · Nov 2
£158 GBP
$212 USD
View
Final sale: no returns

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A
0.71ct Marquise
£158 GBP