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Round|Lab Grown|IGI

1.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG786646501

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786646501

Diamond specifications and retailer prices

From $589 CAD
$422 USD
As of October 29, 2026
Save $5,557 CAD (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $6,146 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG786646501 or 786646501. Listed at 24 retailers as of October 29, 2026, with prices from $589 to $6,146, a $5,557 spread on the same certified stone. Brilliant Earth lists it at $6,146. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786646501
Dimensions7.42 × 7.45 × 4.44 mm
L/W Ratio1.00
Girdle conditionFaceted
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
7.42 mm7.45 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786646501
Side View
Table 59.0%Crown 33.2°Girdle: MediumPavilion 40.6°Culet: NoneDepth 59.8%

Caratlytics Score

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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 29
Current: $6,146 CAD|Low: $566 CAD|High: $6,328 CAD|Avg: $1,680 CAD|-2.9%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 31, 2026
Retailer 18$589 CAD
Retailer 13$659 CAD
Retailer 7$661 CAD
Retailer 3$732 CAD
Retailer 9$732 CAD
Retailer 15$936 CAD
Retailer 10$981 CAD
Retailer 6$1,067 CAD
Retailer 2$1,146 CAD
Retailer 11$1,202 CAD
Retailer 14$1,257 CAD
Retailer 12$1,703 CAD
Retailer 17$1,764 CAD
Retailer 5$2,323 CAD
Retailer 8$2,351 CAD
Retailer 16$2,691 CAD
Retailer 4$2,738 CAD
Brilliant Earth$6,146 CAD

44 data points across 18 retailers

24 retailers$589 CAD to $6,146 CAD

A
Cheapest Retailer
-
$589 CAD
$422 USD
A
Retailer 2
-
$659 CAD
$472 USD
View
Final sale: no returns
A
Retailer 3
-
$661 CAD
$473 USD
View
A
Retailer 4
-
$732 CAD
$524 USD
View
A
Retailer 5
-
$732 CAD
$524 USD
View
A
Retailer 6
-
$805 CAD
HK$4,500 HKD
View
A
Retailer 7
-
$936 CAD
$670 USD
View
A
Retailer 8
-
$981 CAD
$702 USD
View
A
Retailer 9
-
$1,067 CAD
$764 USD
View
A
Retailer 10
-
$1,146 CAD
€781 EUR
View
A
Retailer 11
-
$1,202 CAD
£678 GBP
View
A
Retailer 12
-
$1,257 CAD
ZAR 14,539 ZAR
View
A
Retailer 13
-
$1,393 CAD
$997 USD
View
B+
Retailer 14
-
$1,703 CAD
A$1,876 AUD
View
B+
Retailer 15
-
$1,764 CAD
$1,263 USD
View
B+
Retailer 16
-
$2,323 CAD
SGD 2,247 SGD
View
B+
Retailer 17
-
$2,351 CAD
$1,683 USD
View
B+
Retailer 18
-
$2,371 CAD
$1,697 USD
View
B+
Retailer 19
-
$2,398 CAD
$1,717 USD
View
B
Retailer 20
-
$2,658 CAD
$1,903 USD
View
B+
Retailer 21
-
$2,691 CAD
£1,517 GBP
View
B+
Retailer 22
-
$2,738 CAD
$1,960 USD
View
B
Retailer 23
-
$4,063 CAD
£2,290 GBP
View
Most Expensive
B
Brilliant Earth
21370785A · Oct 29
$6,146 CAD
$4,400 USD
View
23 more retailers have this diamond
Prices start from $589 CADSave up to $5,557 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 Round
$589 CAD