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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 $161 AUD
$113 USD
As of October 30, 2026
Save $1,508 AUD (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,669 AUD 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 $161 to $1,669, a $1,508 spread on the same certified stone. MOH London lists it at $1,669. 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: $1,669 AUD|Low: $155 AUD|High: $1,687 AUD|Avg: $503 AUD|+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$161 AUD
Retailer 14$181 AUD
Retailer 13$186 AUD
Retailer 12$212 AUD
Retailer 6$282 AUD
Retailer 9$313 AUD
Retailer 8$357 AUD
Retailer 5$371 AUD
Retailer 2$404 AUD
Retailer 10$413 AUD
Retailer 7$512 AUD
Retailer 3$796 AUD
Retailer 4$1,041 AUD
MOH London$1,669 AUD

44 data points across 14 retailers

16 retailers$161 AUD to $1,669 AUD

A
Cheapest Retailer
-
$161 AUD
$113 USD
A
Retailer 2
-
$181 AUD
$127 USD
View
Final sale: no returns
A
Retailer 3
-
$186 AUD
$131 USD
View
A
Retailer 4
-
$212 AUD
$149 USD
View
A
Retailer 5
-
$237 AUD
HK$1,300 HKD
View
A
Retailer 6
-
$282 AUD
$198 USD
View
A
Retailer 7
-
$313 AUD
$220 USD
View
B+
Retailer 8
-
$357 AUD
€239 EUR
View
B+
Retailer 9
-
$371 AUD
$260 USD
View
B+
Retailer 10
-
$404 AUD
£223 GBP
View
B+
Retailer 11
-
$413 AUD
$290 USD
View
B+
Retailer 12
-
$512 AUD
£283 GBP
View
B+
Retailer 13
-
$558 AUD
SGD 530 SGD
View
B
Retailer 14
-
$724 AUD
$508 USD
View
B
Retailer 15
-
$1,041 AUD
£576 GBP
View
Most Expensive
B
MOH London
LG712531477 · Oct 26
$1,669 AUD
£923 GBP
View
15 more retailers have this diamond
Prices start from $161 AUDSave up to $1,508 AUD

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
$161 AUD