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Radiant|Lab Grown|IGI

1.51ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG818644542

Shape and cutting style on the report: Cut cornered rectangular antique cut

Certificate IGI LG818644542

Diamond specifications and retailer prices

From $1,632 CAD
$1,168 USD
As of October 30, 2026
Save $4,993 CAD (75%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,625 CAD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

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 LG818644542 or 818644542. Listed at 18 retailers as of October 30, 2026, with prices from $1,632 to $6,625, a $4,993 spread on the same certified stone. Taylor and Hart lists it at $6,625. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818644542
Dimensions7.44 × 6.60 × 3.82 mm
L/W Ratio1.13
Culet sizeLarge
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
7.44 mm6.60 mm1.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818644542
Side View
Table 71.0%Crown 36.2°Girdle: STK-THKPavilion 40.6°Culet: LargeDepth 57.9%

Caratlytics Score

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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: Oct 30
Current: $2,721 CAD|Low: $1,566 CAD|High: $6,337 CAD|Avg: $3,604 CAD|-2.3%
Retailer 1
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
October 31, 2026
Retailer 11$1,632 CAD
Retailer 4$1,774 CAD
Retailer 10$1,827 CAD
Retailer 12$1,891 CAD
Retailer 9$2,137 CAD
Retailer 1$2,721 CAD
Retailer 14$3,005 CAD
Retailer 7$3,478 CAD
Retailer 2$3,547 CAD
Retailer 3$3,728 CAD
Retailer 6$5,216 CAD
Retailer 13$5,477 CAD
Retailer 8$6,087 CAD
Retailer 5$6,337 CAD

45 data points across 14 retailers

18 retailers$1,632 CAD to $6,625 CAD

B+
Cheapest Retailer
-
$1,632 CAD
$1,168 USD
B+
Retailer 2
-
$1,774 CAD
$1,270 USD
View
Retailer 3
-
$1,827 CAD
$1,308 USD
View
Price last confirmed 20 days ago
Final sale: no returns
B+
Retailer 4
-
$1,830 CAD
$1,310 USD
View
Retailer 5
-
$1,891 CAD
$1,354 USD
View
Price last confirmed 14 days ago
B+
Retailer 6
-
$1,891 CAD
$1,354 USD
View
B+
Retailer 7
-
$2,137 CAD
$1,530 USD
View
B+
Retailer 8
-
$2,721 CAD
£1,534 GBP
View
B
Retailer 9
-
$3,005 CAD
$2,151 USD
View
B
Retailer 10
-
$3,478 CAD
ZAR 40,220 ZAR
View
B
Retailer 11
-
$3,547 CAD
$2,539 USD
View
B
Retailer 12
-
$3,728 CAD
$2,669 USD
View
B
Retailer 13
-
$5,216 CAD
£2,940 GBP
View
B
Retailer 14
-
$5,477 CAD
$3,921 USD
View
B
Retailer 15
-
$5,980 CAD
$4,281 USD
View
B
Retailer 16
-
$6,087 CAD
£3,431 GBP
View
B
Retailer 17
-
$6,337 CAD
SGD 6,130 SGD
View
Most Expensive
B
Taylor and Hart
APY38XB · Oct 30
$6,625 CAD
$4,742 USD
View
17 more retailers have this diamond
Prices start from $1,632 CADSave up to $4,993 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+
1.51ct Radiant
$1,632 CAD