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Heart|Lab Grown|GIA

1.50ct D SI1 Heart Lab Grown Diamond

EX • D/SI1 • GIA 1428186208

Certificate GIA 1428186208

Diamond specifications and retailer prices

From $626 CAD
As of November 6, 2026
Save $1,237 CAD (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,863 CAD at MOH London · As of November 1, 2026
View at MOH London

About this 1.5ct lab-grown heart diamond

This 1.5ct 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 stated by the retailer rather than the lab and certified by GIA 1428186208. Listed at 9 retailers as of November 1, 2026, with prices from $626 to $1,863, a $1,237 spread on the same certified stone. MOH London lists it at $1,863. 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.11°
Pavilion angle49.3°
OriginLab Grown
Grading LabGIA
CertificateGIA 1428186208
Dimensions6.66 × 6.26 × 4.17 mm
L/W Ratio1.06
Star length45%
Cert comments
Additional growth remnants are not shown. This is a man-made diamond produced by HPHT (High Pressure High Temperature) growth process. No evidence of treatment was detected.
Key to symbols
Growth Remnant
Top View
6.66 mm6.26 mm1.50 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1428186208
Side View
Table 62.0%Crown 32.11°Girdle: STK-VTKPavilion 49.3°Culet: NoneDepth 66.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,863 CAD|Low: $464 CAD|High: $1,963 CAD|Avg: $935 CAD|-4.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9$464 CAD
Retailer 8$626 CAD
Retailer 5$689 CAD
Retailer 2$731 CAD
Retailer 3$793 CAD
Retailer 7$820 CAD
Retailer 6$938 CAD
Retailer 4$1,193 CAD
MOH London$1,863 CAD

44 data points across 9 retailers

9 retailers$626 CAD to $1,863 CAD

Retailer 1
-
$464 CAD
Price last confirmed 12 days ago
B+
Retailer 2
-
$626 CAD
View
B+
Retailer 3
-
$689 CAD
View
B+
Retailer 4
-
$731 CAD
View
B+
Retailer 5
-
$793 CAD
View
B+
Retailer 6
-
$820 CAD
View
B+
Retailer 7
-
$938 CAD
View
B
Retailer 8
-
$1,193 CAD
View
Most Expensive
B
MOH London
1428186208 · Nov 1
$1,863 CAD
£1,043 GBP
View
8 more retailers have this diamond
Prices start from $626 CADSave up to $1,237 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+
1.50ct Heart
$626 CAD