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Radiant|Lab Grown|IGI

1.30ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG514268643

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

Certificate IGI LG514268643

Diamond specifications and retailer prices

From $1,144 CAD
As of November 6, 2026
Save $1,906 CAD (63%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,959 CAD at MOH London · As of November 5, 2026
View at MOH London

About this 1.3ct lab-grown radiant diamond

This 1.3ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG514268643 or 514268643. Listed at 13 retailers as of November 4, 2026, with a 167% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.30
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514268643
Dimensions7.77 × 5.36 × 3.45 mm
L/W Ratio1.45
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
7.77 mm5.36 mm1.30 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514268643
Side View
Table 66.5%Crown 45.5°Girdle: MediumPavilion 33.1°Culet: NoneDepth 64.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,959 CAD|Low: $1,097 CAD|High: $5,038 CAD|Avg: $2,090 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4$1,144 CAD
Retailer 9$1,280 CAD
Retailer 6$1,326 CAD
Retailer 5$1,421 CAD
Retailer 8$1,575 CAD
Retailer 2$2,017 CAD
Retailer 7$2,137 CAD
Retailer 3$3,050 CAD
MOH London$4,959 CAD

43 data points across 9 retailers

13 retailers$1,144 CAD to $3,050 CAD

B+
Cheapest Retailer
-
$1,144 CAD
B+
Retailer 2
-
$1,243 CAD
View
B
Retailer 3
-
$1,280 CAD
View
Final sale: no returns
B
Retailer 4
-
$1,326 CAD
View
Retailer 5
-
$1,326 CAD
View
Price last confirmed 26 days ago
B
Retailer 6
-
$1,421 CAD
View
B
Retailer 7
-
$1,575 CAD
View
B
Retailer 8
-
$2,017 CAD
View
B
Retailer 9
-
$2,137 CAD
View
B
Retailer 10
-
$3,050 CAD
View
Retailer 11
-
$3,729 CAD
View
Price under review
Retailer 12
-
$4,052 CAD
View
Price under review
Most Expensive
MOH London
LG514268643 · Nov 5
$4,959 CAD
£2,776 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $1,144 CADSave up to $1,906 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.

B+
1.30ct Radiant
$1,144 CAD