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Radiant|Lab Grown|IGI

1.43ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG506195332

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

Certificate IGI LG506195332

Diamond specifications and retailer prices

From $1,131 CAD
$805 USD
As of October 27, 2026
Save $3,813 CAD (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,943 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.43ct lab-grown radiant diamond

This 1.43ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG506195332 or 506195332. Listed at 10 retailers as of October 27, 2026, with prices from $1,131 to $4,943, a $3,813 spread on the same certified stone. MOH London lists it at $4,943. 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

1.43
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle29.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG506195332
Dimensions8.07 × 5.62 × 3.58 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.07 mm5.62 mm1.43 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG506195332
Side View
Table 65.5%Crown 36.5°Girdle: MediumPavilion 29.1°Culet: NoneDepth 63.7%

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: Oct 27
Current: $4,943 CAD|Low: $1,294 CAD|High: $4,983 CAD|Avg: $2,535 CAD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 5$1,312 CAD
Retailer 2$1,559 CAD
Retailer 4$1,854 CAD
Retailer 8$2,041 CAD
Retailer 7$2,115 CAD
Retailer 3$3,120 CAD
Retailer 6$3,687 CAD
MOH London$4,943 CAD

20 data points across 8 retailers

10 retailers$1,131 CAD to $4,943 CAD

A
Cheapest Retailer
-
$1,131 CAD
$805 USD
B+
Retailer 2
-
$1,231 CAD
$876 USD
View
B+
Retailer 3
-
$1,312 CAD
$934 USD
View
B+
Retailer 4
-
$1,312 CAD
$934 USD
View
Price last confirmed 16 days ago
B+
Retailer 5
-
$1,559 CAD
$1,110 USD
View
B+
Retailer 6
-
$1,854 CAD
$1,320 USD
View
B+
Retailer 7
-
$2,115 CAD
$1,506 USD
View
B+
Retailer 8
-
$3,120 CAD
$2,221 USD
View
B+
Retailer 9
-
$3,687 CAD
$2,625 USD
View
Most Expensive
B+
MOH London
LG506195332 · Oct 29
$4,943 CAD
£2,771 GBP
View
9 more retailers have this diamond
Prices start from $1,131 CADSave up to $3,813 CAD

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
1.43ct Radiant
$1,131 CAD