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Radiant|Lab Grown|IGI

0.51ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG762555331

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG762555331

Diamond specifications and retailer prices

From $343 SGD
$268 USD
As of November 1, 2026
Save $1,099 SGD (76%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,442 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG762555331 or 762555331. Listed at 8 retailers as of November 1, 2026, with prices from $343 to $1,442, a $1,099 spread on the same certified stone. MOH London lists it at $1,442. 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

0.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762555331
Dimensions5.71 × 4.02 × 2.59 mm
L/W Ratio1.42
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
5.71 mm4.02 mm0.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762555331
Side View
Table 68.0%Crown 40.3°Girdle: ThickPavilion 34.8°Culet: NoneDepth 64.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,442 SGD|Low: $308 SGD|High: $1,458 SGD|Avg: $516 SGD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$320 SGD
Retailer 7$343 SGD
Retailer 5$344 SGD
Retailer 2$345 SGD
Retailer 3$409 SGD
Retailer 4$417 SGD
Retailer 8$467 SGD
MOH London$1,442 SGD

42 data points across 8 retailers

8 retailers$343 SGD to $1,442 SGD

Retailer 1
-
$320 SGD
$250 USD
Price last confirmed 14 days ago
A
Retailer 2
-
$343 SGD
$268 USD
View
A
Retailer 3
-
$344 SGD
€256 EUR
View
A
Retailer 4
-
$345 SGD
£212 GBP
View
B+
Retailer 5
-
$409 SGD
$320 USD
View
B+
Retailer 6
-
$417 SGD
£257 GBP
View
B+
Retailer 7
-
$467 SGD
$365 USD
View
Most Expensive
B
MOH London
LG762555331 · Nov 1
$1,442 SGD
£888 GBP
View
7 more retailers have this diamond
Prices start from $343 SGDSave up to $1,099 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
0.51ct Radiant
$343 SGD