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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 $443 USD
As of October 30, 2026
Save $1,574 USD (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,017 USD 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 6421049136. Listed at 8 retailers as of October 30, 2026, with prices from $443 to $2,017, a $1,574 spread on the same certified stone. MOH London lists it at $2,017. 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
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,017 USD|Low: $425 USD|High: $2,041 USD|Avg: $1,070 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 3$443 USD
Retailer 7$496 USD
Retailer 5$549 USD
Retailer 8$549 USD
Retailer 2$820 USD
Retailer 4$1,700 USD
Retailer 6$1,765 USD
MOH London$2,017 USD

42 data points across 8 retailers

8 retailers$443 USD to $2,017 USD

A
Cheapest Retailer
-
$443 USD
B+
Retailer 2
-
$496 USD
View
B+
Retailer 3
-
$549 USD
View
Retailer 4
-
$549 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
$820 USD
£646 GBP
View
B
Retailer 6
-
$1,700 USD
View
B
Retailer 7
-
$1,765 USD
View
Most Expensive
B
MOH London
6421049136 · Nov 1
$2,017 USD
£1,588 GBP
View
7 more retailers have this diamond
Prices start from $443 USDSave up to $1,574 USD

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
$443 USD