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Round|Lab Grown|IGI

0.31ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG459193779

Shape and cutting style on the report: Round brilliant

Certificate IGI LG459193779

Diamond specifications and retailer prices

From $217 SGD
$170 USD
As of November 1, 2026
Save $1,043 SGD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,260 SGD at MOH London · As of November 1, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG459193779 or 459193779. Listed at 10 retailers as of November 1, 2026, with prices from $217 to $1,260, a $1,043 spread on the same certified stone. MOH London lists it at $1,260. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459193779
Dimensions4.31 × 4.33 × 2.67 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
4.31 mm4.33 mm0.31 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG459193779
Side View
Table 58.0%Crown 35.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.9%

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: Nov 1
Current: $1,260 SGD|Low: $208 SGD|High: $1,276 SGD|Avg: $445 SGD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4$217 SGD
Retailer 8$243 SGD
Retailer 7$252 SGD
Retailer 5$270 SGD
Retailer 9$362 SGD
Retailer 2$479 SGD
Retailer 6$482 SGD
Retailer 3$553 SGD
MOH London$1,260 SGD

41 data points across 9 retailers

10 retailers$217 SGD to $1,260 SGD

A
Cheapest Retailer
-
$217 SGD
$170 USD
A
Retailer 2
-
$243 SGD
$190 USD
View
A
Retailer 3
-
$252 SGD
$197 USD
View
Retailer 4
-
$270 SGD
$211 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$270 SGD
$211 USD
View
B+
Retailer 6
-
$479 SGD
£295 GBP
View
B+
Retailer 7
-
$482 SGD
$377 USD
View
B+
Retailer 8
-
$553 SGD
€412 EUR
View
B
Retailer 9
-
$867 SGD
$678 USD
View
Most Expensive
B
MOH London
LG459193779 · Nov 1
$1,260 SGD
£776 GBP
View
9 more retailers have this diamond
Prices start from $217 SGDSave up to $1,043 SGD

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
$217 SGD