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Radiant|Lab Grown|IGI

1.51ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG833665579

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

Certificate IGI LG833665579

Diamond specifications and retailer prices

From $281 SGD
As of November 5, 2026
Save $1,051 SGD (79%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,331 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG833665579 or 833665579. Listed at 9 retailers as of November 1, 2026, with prices from $281 to $1,331, a $1,051 spread on the same certified stone. MOH London lists it at $1,331. 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

1.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.3°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833665579
Dimensions8.20 × 5.51 × 3.74 mm
L/W Ratio1.49
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.20 mm5.51 mm1.51 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833665579
Side View
Table 63.0%Crown 43.3°Girdle: Slightly ThickPavilion 34.5°Culet: NoneDepth 67.9%

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 5
Current: $1,331 SGD|Low: $255 SGD|High: $1,420 SGD|Avg: $655 SGD|+3.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 4$255 SGD
Retailer 6$269 SGD
Retailer 5$273 SGD
Retailer 3$281 SGD
Retailer 2$361 SGD
Retailer 9$474 SGD
Retailer 14$481 SGD
Retailer 10$504 SGD
Retailer 8$570 SGD
Retailer 7$704 SGD
Retailer 12$846 SGD
Retailer 15$886 SGD
Retailer 11$992 SGD
Retailer 16$1,128 SGD
MOH London$1,331 SGD
Retailer 13$1,420 SGD

18 data points across 16 retailers

9 retailers$281 SGD to $1,331 SGD

Retailer 1
-
$269 SGD
Price last confirmed 39 days ago
A
Retailer 2
-
$281 SGD
View
Final sale: no returns
A
Retailer 3
-
$361 SGD
View
A
Retailer 4
-
$474 SGD
View
B+
Retailer 5
-
$504 SGD
View
Retailer 6
-
$886 SGD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$992 SGD
View
Retailer 8
-
$1,128 SGD
View
Price last confirmed 38 days ago
Most Expensive
B
MOH London
LG833665579 · Nov 1
$1,331 SGD
£818 GBP
View
8 more retailers have this diamond
Prices start from $281 SGDSave up to $1,051 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
1.51ct Radiant
$281 SGD