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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 $648 AUD
As of November 6, 2026
Save $1,280 AUD (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,928 AUD 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 $648 to $1,928, a $1,280 spread on the same certified stone. MOH London lists it at $1,928. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,928 AUD|Low: $480 AUD|High: $2,031 AUD|Avg: $967 AUD|-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$480 AUD
Retailer 8$648 AUD
Retailer 5$713 AUD
Retailer 2$757 AUD
Retailer 3$821 AUD
Retailer 7$848 AUD
Retailer 6$971 AUD
Retailer 4$1,234 AUD
MOH London$1,928 AUD

44 data points across 9 retailers

9 retailers$648 AUD to $1,928 AUD

Retailer 1
-
$480 AUD
Price last confirmed 12 days ago
B+
Retailer 2
-
$648 AUD
View
B+
Retailer 3
-
$713 AUD
View
B+
Retailer 4
-
$757 AUD
View
B+
Retailer 5
-
$821 AUD
View
B+
Retailer 6
-
$848 AUD
View
B+
Retailer 7
-
$971 AUD
View
B
Retailer 8
-
$1,234 AUD
View
Most Expensive
B
MOH London
1428186208 · Nov 1
$1,928 AUD
£1,043 GBP
View
8 more retailers have this diamond
Prices start from $648 AUDSave up to $1,280 AUD

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
$648 AUD