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Round|Lab Grown|IGI

0.40ct F SI1 Round Lab Grown Diamond

VG • F/SI1 • IGI LG459129403

Shape and cutting style on the report: Round brilliant

Certificate IGI LG459129403

Diamond specifications and retailer prices

From $317 SGD
$248 USD
As of November 1, 2026
Save $1,258 SGD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,575 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 0.4ct lab-grown round diamond

This 0.4ct lab-grown round sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG459129403 or 459129403. Listed at 10 retailers as of November 1, 2026, with prices from $317 to $1,575, a $1,258 spread on the same certified stone. MOH London lists it at $1,575. 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

0.40
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG459129403
Dimensions4.66 × 4.70 × 2.86 mm
L/W Ratio1.01
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
4.66 mm4.70 mm0.40 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG459129403
Side View
Table 61.5%Crown 37.2°Girdle: MED-STKPavilion 40°Culet: NoneDepth 61.0%

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: Nov 1
Current: $1,575 SGD|Low: $304 SGD|High: $1,594 SGD|Avg: $631 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 5$317 SGD
Retailer 3$332 SGD
Retailer 8$368 SGD
Retailer 6$394 SGD
Retailer 9$529 SGD
Retailer 7$658 SGD
Retailer 2$746 SGD
Retailer 4$748 SGD
MOH London$1,575 SGD

41 data points across 9 retailers

10 retailers$317 SGD to $1,575 SGD

A
Cheapest Retailer
-
$317 SGD
$248 USD
A
Retailer 2
-
$332 SGD
$260 USD
View
B+
Retailer 3
-
$368 SGD
$288 USD
View
B+
Retailer 4
-
$394 SGD
$308 USD
View
Retailer 5
-
$394 SGD
$308 USD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$658 SGD
$515 USD
View
B
Retailer 7
-
$746 SGD
£459 GBP
View
B
Retailer 8
-
$748 SGD
€557 EUR
View
B
Retailer 9
-
$1,264 SGD
$989 USD
View
Most Expensive
B
MOH London
LG459129403 · Nov 1
$1,575 SGD
£970 GBP
View
9 more retailers have this diamond
Prices start from $317 SGDSave up to $1,258 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
0.40ct Round
$317 SGD