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Radiant|Lab Grown|IGI

1.51ct E FL Radiant Lab Grown Diamond

EX • E/FL • IGI LG768630808

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

Certificate IGI LG768630808

Diamond specifications and retailer prices

From $912 CAD
HK$5,100 HKD
As of October 30, 2026
Save $3,698 CAD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,610 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768630808 or 768630808. Listed at 14 retailers as of October 30, 2026, with prices from $912 to $4,610, a $3,698 spread on the same certified stone. Brilliant Earth lists it at $4,610. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768630808
Dimensions8.44 × 5.78 × 3.73 mm
L/W Ratio1.46
Culet sizePointed
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
8.44 mm5.78 mm1.51 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768630808
Side View
Table 62.0%Crown 40.1°Girdle: Slightly ThickPavilion 34.1°Culet: NoneDepth 64.5%

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: $4,610 CAD|Low: $912 CAD|High: $5,518 CAD|Avg: $2,342 CAD|-16.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 9$912 CAD
Retailer 4$1,125 CAD
Retailer 11$1,126 CAD
Retailer 8$1,220 CAD
Retailer 2$1,318 CAD
Retailer 6$1,367 CAD
Retailer 3$1,497 CAD
Retailer 13$1,856 CAD
Retailer 12$2,601 CAD
Retailer 5$2,742 CAD
Retailer 7$2,925 CAD
Retailer 10$2,977 CAD
Brilliant Earth$4,610 CAD

42 data points across 13 retailers

14 retailers$912 CAD to $4,610 CAD

A
Cheapest Retailer
-
$912 CAD
HK$5,100 HKD
A
Retailer 2
-
$1,125 CAD
$805 USD
View
A
Retailer 3
-
$1,126 CAD
$806 USD
View
Retailer 4
-
$1,220 CAD
€832 EUR
View
Price last confirmed 7 days ago
A
Retailer 5
-
$1,318 CAD
£743 GBP
View
A
Retailer 6
-
$1,367 CAD
ZAR 15,810 ZAR
View
B+
Retailer 7
-
$1,497 CAD
$1,072 USD
View
B+
Retailer 8
-
$1,856 CAD
$1,329 USD
View
B
Retailer 9
-
$2,601 CAD
$1,862 USD
View
B
Retailer 10
-
$2,742 CAD
$1,963 USD
View
B
Retailer 11
-
$2,925 CAD
£1,649 GBP
View
B+
Retailer 12
-
$2,977 CAD
$2,131 USD
View
Retailer 13
-
$4,567 CAD
$3,269 USD
View
Price last confirmed 71 days ago
Most Expensive
B
Brilliant Earth
18919100A · Oct 30
$4,610 CAD
$3,300 USD
View
13 more retailers have this diamond
Prices start from $912 CADSave up to $3,698 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
1.51ct Radiant
$912 CAD