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Heart|Natural|GIA

0.37ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6445393329

Certificate GIA 6445393329

Diamond specifications and retailer prices

From HK$4,331 HKD
$552 USD
As of October 31, 2026
Save HK$3,576 HKD (45%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$11,499 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 0.37ct natural heart diamond

This 0.37ct natural heart sits in the sub-half-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 6445393329. Listed at 17 retailers as of October 30, 2026, with a 83% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.37
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle38.3°
Pavilion angle38.9°
OriginNatural
Grading LabGIA
CertificateGIA 6445393329
Dimensions4.20 × 5.00 × 2.96 mm
L/W Ratio1.19
Top View
4.20 mm5.00 mm0.37 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6445393329
Side View
Table 62.0%Crown 38.3°Girdle: THN-THKPavilion 38.9°Culet: NoneDepth 59.2%

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: Oct 31
Current: HK$11,499 HKD|Low: HK$5,100 HKD|High: HK$15,990 HKD|Avg: HK$7,322 HKD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 12HK$5,100 HKD
Retailer 4HK$5,178 HKD
Retailer 10HK$5,218 HKD
Retailer 9HK$5,492 HKD
Retailer 11HK$5,492 HKD
Retailer 2HK$5,565 HKD
Retailer 3HK$5,885 HKD
Retailer 5HK$5,947 HKD
Retailer 7HK$6,988 HKD
Retailer 8HK$7,667 HKD
Retailer 6HK$7,907 HKD
MOH LondonHK$11,499 HKD
Retailer 13HK$15,990 HKD

39 data points across 13 retailers

17 retailersHK$4,331 HKD to HK$7,907 HKD

B+
Cheapest Retailer
-
HK$4,331 HKD
$552 USD
B+
Retailer 2
-
HK$5,100 HKD
$650 USD
View
B+
Retailer 3
-
HK$5,178 HKD
$660 USD
View
B+
Retailer 4
-
HK$5,218 HKD
$665 USD
View
B+
Retailer 5
-
HK$5,492 HKD
$700 USD
View
B+
Retailer 6
-
HK$5,492 HKD
$700 USD
View
B+
Retailer 7
-
HK$5,565 HKD
£559 GBP
View
B
Retailer 8
-
HK$5,649 HKD
$720 USD
View
B
Retailer 9
-
HK$5,649 HKD
$720 USD
View
B
Retailer 10
-
HK$5,885 HKD
$750 USD
View
B
Retailer 11
-
HK$5,885 HKD
$750 USD
View
B
Retailer 12
-
HK$6,134 HKD
$782 USD
View
B
Retailer 13
-
HK$6,988 HKD
£701 GBP
View
Retailer 14
-
HK$7,667 HKD
A$1,503 AUD
View
Price last confirmed 29 days ago
B
Retailer 15
-
HK$7,907 HKD
ZAR 16,280 ZAR
View
Most Expensive
MOH London
E65116B3F · Nov 1
HK$11,499 HKD
£1,154 GBP
View
Price under review
15 more retailers have this diamond
Prices start from HK$4,331 HKDSave up to HK$3,576 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+
0.37ct Heart
HK$4,331 HKD