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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 HK$3,488 HKD
As of November 6, 2026
Save HK$6,894 HKD (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$10,381 HKD 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 HK$3,488 to HK$10,381, a HK$6,894 spread on the same certified stone. MOH London lists it at HK$10,381. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$10,381 HKD|Low: HK$2,586 HKD|High: HK$10,939 HKD|Avg: HK$5,209 HKD|-4.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9HK$2,586 HKD
Retailer 8HK$3,488 HKD
Retailer 5HK$3,840 HKD
Retailer 2HK$4,075 HKD
Retailer 3HK$4,420 HKD
Retailer 7HK$4,569 HKD
Retailer 6HK$5,228 HKD
Retailer 4HK$6,646 HKD
MOH LondonHK$10,381 HKD

44 data points across 9 retailers

9 retailersHK$3,488 HKD to HK$10,381 HKD

Retailer 1
-
HK$2,586 HKD
Price last confirmed 12 days ago
B+
Retailer 2
-
HK$3,488 HKD
View
B+
Retailer 3
-
HK$3,840 HKD
View
B+
Retailer 4
-
HK$4,075 HKD
View
B+
Retailer 5
-
HK$4,420 HKD
View
B+
Retailer 6
-
HK$4,569 HKD
View
B+
Retailer 7
-
HK$5,228 HKD
View
B
Retailer 8
-
HK$6,646 HKD
View
Most Expensive
B
MOH London
1428186208 · Nov 1
HK$10,381 HKD
£1,043 GBP
View
8 more retailers have this diamond
Prices start from HK$3,488 HKDSave up to HK$6,894 HKD

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
HK$3,488 HKD