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Radiant|Lab Grown|IGI

0.51ct D VS2 Radiant Lab Grown Diamond

EX • D/VS2 • IGI LG817666139

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

Certificate IGI LG817666139

Diamond specifications and retailer prices

From $253 SGD
$198 USD
As of November 1, 2026
Save $419 SGD (62%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,555 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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG817666139 or 817666139. Listed at 10 retailers as of October 31, 2026, with a 165% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
D
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817666139
Dimensions5.59 × 3.97 × 2.67 mm
L/W Ratio1.41
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
5.59 mm3.97 mm0.51 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817666139
Side View
Table 62.0%Crown 41°Girdle: MediumPavilion 38.9°Culet: NoneDepth 67.3%

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: $1,555 SGD|Low: $253 SGD|High: $1,573 SGD|Avg: $529 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 9$253 SGD
Retailer 6$320 SGD
Retailer 4$329 SGD
Retailer 2$378 SGD
Retailer 8$384 SGD
Retailer 5$450 SGD
Retailer 3$460 SGD
Retailer 7$554 SGD
MOH London$1,555 SGD

45 data points across 9 retailers

10 retailers$253 SGD to $672 SGD

A
Cheapest Retailer
-
$253 SGD
$198 USD
Retailer 2
-
$320 SGD
$250 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$329 SGD
€245 EUR
View
B+
Retailer 4
-
$378 SGD
£233 GBP
View
B+
Retailer 5
-
$384 SGD
A$462 AUD
View
B+
Retailer 6
-
$450 SGD
£277 GBP
View
B+
Retailer 7
-
$460 SGD
$360 USD
View
B
Retailer 8
-
$554 SGD
$433 USD
View
B
Retailer 9
-
$672 SGD
$526 USD
View
Most Expensive
MOH London
LG817666139 · Nov 1
$1,555 SGD
£958 GBP
View
Price under review
9 more retailers have this diamond
Prices start from $253 SGDSave up to $419 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
$253 SGD