Heart|Natural|GIA

0.50ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6551900624

Certificate GIA 6551900624

Diamond specifications and retailer prices

From $916 NZD
As of November 6, 2026
Save $1,376 NZD (60%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,456 NZD 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: $1,212 NZD|Low: $886 NZD|High: $2,513 NZD|Avg: $1,441 NZD|-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$916 NZD
Retailer 9$983 NZD
Retailer 1$1,212 NZD
Retailer 3$1,241 NZD
Retailer 6$1,243 NZD
Retailer 7$1,344 NZD
Retailer 10$1,418 NZD
Retailer 4$1,532 NZD
Retailer 2$1,616 NZD
Retailer 5$2,293 NZD

39 data points across 10 retailers

17 retailers$916 NZD to $2,293 NZD

A
Cheapest Retailer
-
$916 NZD
Final sale: no returns
A
Retailer 2
-
$983 NZD
View
Retailer 3
-
$1,075 NZD
View
Price last confirmed 37 days ago
Retailer 4
-
$1,102 NZD
View
Price last confirmed 46 days ago
Retailer 5
-
$1,158 NZD
View
Price last confirmed 37 days ago
B+
Retailer 6
-
$1,212 NZD
View
Retailer 7
-
$1,241 NZD
View
Price last confirmed 39 days ago
B+
Retailer 8
-
$1,241 NZD
View
B+
Retailer 9
-
$1,243 NZD
View
Retailer 10
-
$1,272 NZD
View
Price last confirmed 44 days ago
B+
Retailer 11
-
$1,344 NZD
View
Retailer 12
-
$1,418 NZD
View
Price last confirmed 17 days ago
B+
Retailer 13
-
$1,532 NZD
View
Retailer 14
-
$1,616 NZD
View
Price last confirmed 34 days ago
B
Retailer 15
-
$2,293 NZD
View
Retailer 16
-
$3,285 NZD
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
49635ef5-a538-412d-96e7-efbe2922fb1f · Sep 21
$3,456 NZD
$1,916 USD
View
Price last confirmed 46 days ago
16 more retailers have this diamond
Prices start from $916 NZDSave up to $1,376 NZD

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
$916 NZD