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Round|Lab Grown|IGI

0.31ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG644445310

Shape and cutting style on the report: Round brilliant

Certificate IGI LG644445310

Diamond specifications and retailer prices

From $146 AUD
HK$800 HKD
As of October 29, 2026
Save $763 AUD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $908 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 0.31ct lab-grown round diamond

This 0.31ct lab-grown round sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG644445310 or 644445310. Listed at 10 retailers as of October 29, 2026, with prices from $146 to $908, a $763 spread on the same certified stone. MOH London lists it at $908. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.31
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644445310
Dimensions4.39 × 4.41 × 2.66 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
4.39 mm4.41 mm0.31 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644445310
Side View
Table 59.0%Crown 33.4°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
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 29
Current: $908 AUD|Low: $146 AUD|High: $957 AUD|Avg: $381 AUD|-4.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 7$146 AUD
Retailer 5$185 AUD
Retailer 3$218 AUD
Retailer 2$249 AUD
Retailer 4$295 AUD
Retailer 9$365 AUD
Retailer 10$377 AUD
Retailer 6$395 AUD
Retailer 8$482 AUD
MOH London$908 AUD

42 data points across 10 retailers

10 retailers$146 AUD to $908 AUD

A
Cheapest Retailer
-
$146 AUD
HK$800 HKD
A
Retailer 2
-
$185 AUD
$130 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$218 AUD
£121 GBP
View
A
Retailer 4
-
$249 AUD
€167 EUR
View
B+
Retailer 5
-
$295 AUD
£164 GBP
View
B+
Retailer 6
-
$365 AUD
SGD 347 SGD
View
B+
Retailer 7
-
$377 AUD
$265 USD
View
B+
Retailer 8
-
$395 AUD
$278 USD
View
B
Retailer 9
-
$482 AUD
$339 USD
View
Most Expensive
B
MOH London
LG644445310 · Oct 29
$908 AUD
£503 GBP
View
9 more retailers have this diamond
Prices start from $146 AUDSave up to $763 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 Round
$146 AUD