Heart|Natural|GIA

0.37ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6445393329

Certificate GIA 6445393329

Diamond specifications and retailer prices

From $771 CAD
$552 USD
As of October 31, 2026
Save $637 CAD (45%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,047 CAD 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
Color
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: $2,047 CAD|Low: $908 CAD|High: $2,847 CAD|Avg: $1,305 CAD|-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 1, 2026
Retailer 12$908 CAD
Retailer 4$922 CAD
Retailer 10$929 CAD
Retailer 9$978 CAD
Retailer 11$978 CAD
Retailer 2$991 CAD
Retailer 3$1,048 CAD
Retailer 5$1,059 CAD
Retailer 7$1,244 CAD
Retailer 8$1,365 CAD
Retailer 6$1,408 CAD
MOH London$2,047 CAD
Retailer 13$2,847 CAD

39 data points across 13 retailers

17 retailers$771 CAD to $1,408 CAD

B+
Cheapest Retailer
-
$771 CAD
$552 USD
B+
Retailer 2
-
$908 CAD
$650 USD
View
B+
Retailer 3
-
$922 CAD
$660 USD
View
B+
Retailer 4
-
$929 CAD
$665 USD
View
B+
Retailer 5
-
$978 CAD
$700 USD
View
B+
Retailer 6
-
$978 CAD
$700 USD
View
B+
Retailer 7
-
$991 CAD
£559 GBP
View
B
Retailer 8
-
$1,006 CAD
$720 USD
View
B
Retailer 9
-
$1,006 CAD
$720 USD
View
B
Retailer 10
-
$1,048 CAD
$750 USD
View
B
Retailer 11
-
$1,048 CAD
$750 USD
View
B
Retailer 12
-
$1,092 CAD
$782 USD
View
B
Retailer 13
-
$1,244 CAD
£701 GBP
View
Retailer 14
-
$1,365 CAD
A$1,503 AUD
View
Price last confirmed 28 days ago
B
Retailer 15
-
$1,408 CAD
ZAR 16,280 ZAR
View
Most Expensive
MOH London
E65116B3F · Nov 1
$2,047 CAD
£1,154 GBP
View
Price under review
15 more retailers have this diamond
Prices start from $771 CADSave up to $637 CAD

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
$771 CAD