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Radiant|Lab Grown|IGI

1.50ct I SI1 Radiant Lab Grown Diamond

ID • I/SI1 • IGI LG512224123

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

Certificate IGI LG512224123

Diamond specifications and retailer prices

From $1,187 CAD
$850 USD
As of October 30, 2026
Save $5,595 CAD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,782 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.5ct lab-grown radiant diamond

This 1.5ct lab-grown radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512224123 or 512224123. Listed at 11 retailers as of October 29, 2026, with prices from $1,187 to $6,782, a $5,595 spread on the same certified stone. MOH London lists it at $6,782. 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

1.50
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.1°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512224123
Dimensions8.32 × 5.59 × 3.63 mm
L/W Ratio1.49
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
8.32 mm5.59 mm1.50 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512224123
Side View
Table 67.5%Crown 47.1°Girdle: STK-THKPavilion 32.4°Culet: NoneDepth 64.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $6,782 CAD|Low: $1,187 CAD|High: $6,837 CAD|Avg: $3,018 CAD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2$1,187 CAD
Retailer 6$1,810 CAD
Retailer 10$1,970 CAD
Retailer 7$2,100 CAD
Retailer 11$2,100 CAD
Retailer 12$2,340 CAD
Retailer 4$2,894 CAD
Retailer 5$3,007 CAD
Retailer 8$3,323 CAD
Retailer 3$3,914 CAD
Retailer 9$3,935 CAD
MOH London$6,782 CAD

21 data points across 12 retailers

11 retailers$1,187 CAD to $6,782 CAD

A
Cheapest Retailer
-
$1,187 CAD
$850 USD
B+
Retailer 2
-
$1,810 CAD
$1,296 USD
View
B+
Retailer 3
-
$1,970 CAD
$1,410 USD
View
Retailer 4
-
$2,100 CAD
$1,503 USD
View
Price last confirmed 18 days ago
B+
Retailer 5
-
$2,100 CAD
$1,503 USD
View
B+
Retailer 6
-
$2,340 CAD
$1,675 USD
View
B+
Retailer 7
-
$3,007 CAD
£1,695 GBP
View
B
Retailer 8
-
$3,323 CAD
$2,379 USD
View
B
Retailer 9
-
$3,914 CAD
$2,802 USD
View
B
Retailer 10
-
$3,935 CAD
$2,817 USD
View
Most Expensive
B
MOH London
LG512224123 · Oct 29
$6,782 CAD
£3,823 GBP
View
10 more retailers have this diamond
Prices start from $1,187 CADSave up to $5,595 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
1.50ct Radiant
$1,187 CAD