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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 $706 SGD
$552 USD
As of October 31, 2026
Save $583 SGD (45%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,874 SGD 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: $1,874 SGD|Low: $831 SGD|High: $2,605 SGD|Avg: $1,194 SGD|-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$831 SGD
Retailer 4$844 SGD
Retailer 10$850 SGD
Retailer 9$895 SGD
Retailer 11$895 SGD
Retailer 2$907 SGD
Retailer 3$959 SGD
Retailer 5$969 SGD
Retailer 7$1,139 SGD
Retailer 8$1,249 SGD
Retailer 6$1,288 SGD
MOH London$1,874 SGD
Retailer 13$2,605 SGD

38 data points across 13 retailers

17 retailers$706 SGD to $1,288 SGD

B+
Cheapest Retailer
-
$706 SGD
$552 USD
B+
Retailer 2
-
$831 SGD
$650 USD
View
B+
Retailer 3
-
$844 SGD
$660 USD
View
B+
Retailer 4
-
$850 SGD
$665 USD
View
B+
Retailer 5
-
$895 SGD
$700 USD
View
B+
Retailer 6
-
$895 SGD
$700 USD
View
B+
Retailer 7
-
$907 SGD
£559 GBP
View
B
Retailer 8
-
$920 SGD
$720 USD
View
B
Retailer 9
-
$920 SGD
$720 USD
View
B
Retailer 10
-
$959 SGD
$750 USD
View
B
Retailer 11
-
$959 SGD
$750 USD
View
B
Retailer 12
-
$1,000 SGD
$782 USD
View
B
Retailer 13
-
$1,139 SGD
£701 GBP
View
Retailer 14
-
$1,249 SGD
A$1,503 AUD
View
Price last confirmed 29 days ago
B
Retailer 15
-
$1,288 SGD
ZAR 16,280 ZAR
View
Most Expensive
MOH London
E65116B3F · Nov 1
$1,874 SGD
£1,154 GBP
View
Price under review
15 more retailers have this diamond
Prices start from $706 SGDSave up to $583 SGD

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
$706 SGD