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Heart|Natural|GIA

0.50ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6551900624

Certificate GIA 6551900624

Diamond specifications and retailer prices

From $651 SGD
As of November 6, 2026
Save $978 SGD (60%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,456 SGD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 0.5ct natural heart diamond

This 0.5ct natural heart sits in the half to three-quarter 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 6551900624. Listed at 17 retailers as of November 2, 2026, with a 150% 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

0.50
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551900624
Dimensions4.82 × 5.57 × 3.21 mm
L/W Ratio1.16
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
4.82 mm5.57 mm0.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551900624
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $861 SGD|Low: $629 SGD|High: $1,785 SGD|Avg: $1,024 SGD|-6.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$651 SGD
Retailer 9$698 SGD
Retailer 1$861 SGD
Retailer 3$882 SGD
Retailer 6$883 SGD
Retailer 7$955 SGD
Retailer 10$1,007 SGD
Retailer 4$1,088 SGD
Retailer 2$1,148 SGD
Retailer 5$1,629 SGD

39 data points across 10 retailers

17 retailers$651 SGD to $1,629 SGD

A
Cheapest Retailer
-
$651 SGD
Final sale: no returns
A
Retailer 2
-
$698 SGD
View
Retailer 3
-
$764 SGD
View
Price last confirmed 37 days ago
Retailer 4
-
$783 SGD
View
Price last confirmed 46 days ago
Retailer 5
-
$823 SGD
View
Price last confirmed 37 days ago
B+
Retailer 6
-
$861 SGD
View
Retailer 7
-
$882 SGD
View
Price last confirmed 39 days ago
B+
Retailer 8
-
$882 SGD
View
B+
Retailer 9
-
$883 SGD
View
Retailer 10
-
$904 SGD
View
Price last confirmed 44 days ago
B+
Retailer 11
-
$955 SGD
View
Retailer 12
-
$1,007 SGD
View
Price last confirmed 17 days ago
B+
Retailer 13
-
$1,088 SGD
View
Retailer 14
-
$1,148 SGD
View
Price last confirmed 34 days ago
B
Retailer 15
-
$1,629 SGD
View
Retailer 16
-
$2,334 SGD
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
49635ef5-a538-412d-96e7-efbe2922fb1f · Sep 21
$2,456 SGD
$1,916 USD
View
Price last confirmed 46 days ago
16 more retailers have this diamond
Prices start from $651 SGDSave up to $978 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.

A
0.50ct Heart
$651 SGD