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Heart|Lab Grown|GIA

1.50ct D SI1 Heart Lab Grown Diamond

EX • D/SI1 • GIA 6421049136

Certificate GIA 6421049136

Diamond specifications and retailer prices

From $799 NZD
As of November 6, 2026
Save $2,830 NZD (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,629 NZD at MOH London · As of November 5, 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 6421049136. Listed at 8 retailers as of November 5, 2026, with prices from $799 to $3,629, a $2,830 spread on the same certified stone. MOH London lists it at $3,629. 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
OriginLab Grown
Grading LabGIA
CertificateGIA 6421049136
Dimensions7.80 × 6.80 × 4.76 mm
L/W Ratio1.15
Top View
7.80 mm6.80 mm1.50 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6421049136
Side View
Table 66.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.0%

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: $3,629 NZD|Low: $767 NZD|High: $3,682 NZD|Avg: $1,921 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 3$799 NZD
Retailer 7$895 NZD
Retailer 5$990 NZD
Retailer 8$990 NZD
Retailer 2$1,477 NZD
Retailer 4$3,067 NZD
Retailer 6$3,184 NZD
MOH London$3,629 NZD

44 data points across 8 retailers

8 retailers$799 NZD to $3,629 NZD

A
Cheapest Retailer
-
$799 NZD
B+
Retailer 2
-
$895 NZD
View
B+
Retailer 3
-
$990 NZD
View
Retailer 4
-
$990 NZD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$1,477 NZD
View
B
Retailer 6
-
$3,067 NZD
View
B
Retailer 7
-
$3,184 NZD
View
Most Expensive
B
MOH London
6421049136 · Nov 5
$3,629 NZD
£1,584 GBP
View
7 more retailers have this diamond
Prices start from $799 NZDSave up to $2,830 NZD

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
1.50ct Heart
$799 NZD