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Marquise|Lab Grown|IGI

0.31ct E IF Marquise Lab Grown Diamond

VG • E/IF • IGI LG712531477

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG712531477

Diamond specifications and retailer prices

From £84 GBP
$113 USD
As of October 30, 2026
Save £791 GBP (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £875 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.31ct lab-grown marquise diamond

This 0.31ct lab-grown marquise sits in the sub-half-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG712531477 or 712531477. Listed at 16 retailers as of October 26, 2026, with prices from £84 to £875, a £791 spread on the same certified stone. MOH London lists it at £875. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.31
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.7°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG712531477
Dimensions7.45 × 3.39 × 2.03 mm
L/W Ratio2.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.45 mm3.39 mm0.31 ctE / IF
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG712531477
Side View
Table 63.0%Crown 36.7°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 59.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £875 GBP|Low: £81 GBP|High: £884 GBP|Avg: £263 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 11£84 GBP
Retailer 14£95 GBP
Retailer 13£98 GBP
Retailer 12£111 GBP
Retailer 6£148 GBP
Retailer 9£164 GBP
Retailer 8£187 GBP
Retailer 5£194 GBP
Retailer 2£212 GBP
Retailer 10£216 GBP
Retailer 7£269 GBP
Retailer 3£417 GBP
Retailer 4£546 GBP
MOH London£875 GBP

44 data points across 14 retailers

16 retailers£84 GBP to £875 GBP

A
Cheapest Retailer
-
£84 GBP
$113 USD
A
Retailer 2
-
£95 GBP
$127 USD
View
Final sale: no returns
A
Retailer 3
-
£98 GBP
$131 USD
View
A
Retailer 4
-
£111 GBP
$149 USD
View
A
Retailer 5
-
£124 GBP
HK$1,300 HKD
View
A
Retailer 6
-
£148 GBP
$198 USD
View
A
Retailer 7
-
£164 GBP
$220 USD
View
B+
Retailer 8
-
£187 GBP
€239 EUR
View
B+
Retailer 9
-
£194 GBP
$260 USD
View
B+
Retailer 10
-
£212 GBP
View
B+
Retailer 11
-
£216 GBP
$290 USD
View
B+
Retailer 12
-
£269 GBP
View
B+
Retailer 13
-
£293 GBP
SGD 530 SGD
View
B
Retailer 14
-
£379 GBP
$508 USD
View
B
Retailer 15
-
£546 GBP
View
Most Expensive
B
MOH London
LG712531477 · Oct 26
£875 GBP
View
15 more retailers have this diamond
Prices start from £84 GBPSave up to £791 GBP

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
0.31ct Marquise
£84 GBP