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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 €398 EUR
$445 USD
As of November 1, 2026
Save €787 EUR (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €1,186 EUR 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 €398 to €1,186, a €787 spread on the same certified stone. MOH London lists it at €1,186. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,186 EUR|Low: €295 EUR|High: €1,249 EUR|Avg: €596 EUR|-4.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 9€295 EUR
Retailer 8€398 EUR
Retailer 4€439 EUR
Retailer 3€469 EUR
Retailer 2€508 EUR
Retailer 7€522 EUR
Retailer 6€597 EUR
Retailer 5€752 EUR
MOH London€1,186 EUR

42 data points across 9 retailers

9 retailers€398 EUR to €1,186 EUR

Retailer 1
-
€295 EUR
$330 USD
Price last confirmed 7 days ago
B+
Retailer 2
-
€398 EUR
$445 USD
View
B+
Retailer 3
-
€439 EUR
$490 USD
View
B+
Retailer 4
-
€469 EUR
View
B+
Retailer 5
-
€508 EUR
£447 GBP
View
B+
Retailer 6
-
€522 EUR
$583 USD
View
B+
Retailer 7
-
€597 EUR
$667 USD
View
B
Retailer 8
-
€752 EUR
$840 USD
View
Most Expensive
B
MOH London
1428186208 · Nov 1
€1,186 EUR
£1,043 GBP
View
8 more retailers have this diamond
Prices start from €398 EURSave up to €787 EUR

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
€398 EUR