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Heart|Lab Grown|IGI

1.51ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG700570324

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG700570324

Diamond specifications and retailer prices

From $287 CAD
As of November 6, 2026
Save $1,457 CAD (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,744 CAD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG700570324 or 700570324. Listed at 15 retailers as of November 6, 2026, with prices from $287 to $1,744, a $1,457 spread on the same certified stone. Brilliant Earth lists it at $1,744. 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

1.51
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700570324
Dimensions7.24 × 7.66 × 4.65 mm
L/W Ratio1.06
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.24 mm7.66 mm1.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700570324
Side View
Table 58.0%Crown 36.8°Girdle: MED-STKPavilion 41.9°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
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: Nov 6
Current: $1,744 CAD|Low: $287 CAD|High: $1,744 CAD|Avg: $752 CAD
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
November 6, 2026
Retailer 14$287 CAD
Retailer 11$332 CAD
Retailer 7$335 CAD
Retailer 4$354 CAD
Retailer 6$371 CAD
Retailer 15$478 CAD
Retailer 2$598 CAD
Retailer 8$646 CAD
Retailer 3$695 CAD
Retailer 12$793 CAD
Retailer 13$820 CAD
Retailer 10$928 CAD
Retailer 5$1,141 CAD
Retailer 9$1,656 CAD
Brilliant Earth$1,744 CAD

46 data points across 15 retailers

15 retailers$287 CAD to $1,744 CAD

A
Cheapest Retailer
-
$287 CAD
A
Retailer 2
-
$332 CAD
View
A
Retailer 3
-
$335 CAD
View
Final sale: no returns
A
Retailer 4
-
$354 CAD
View
Retailer 5
-
$371 CAD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$478 CAD
View
A
Retailer 7
-
$598 CAD
View
A
Retailer 8
-
$646 CAD
View
B+
Retailer 9
-
$695 CAD
View
B+
Retailer 10
-
$793 CAD
View
B+
Retailer 11
-
$820 CAD
View
B+
Retailer 12
-
$928 CAD
View
B
Retailer 13
-
$1,141 CAD
View
B
Retailer 14
-
$1,656 CAD
View
Most Expensive
B
Brilliant Earth
13883714A · Nov 6
$1,744 CAD
$1,240 USD
View
14 more retailers have this diamond
Prices start from $287 CADSave up to $1,457 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 Heart
$287 CAD