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Heart|Natural|GIA

0.50ct K SI1 Heart Natural Diamond

K/SI1 • GIA 7551383273

Certificate GIA 7551383273

Diamond specifications and retailer prices

From $642 AUD
As of November 5, 2026
Save $1,816 AUD (74%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,458 AUD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included) and certified by GIA 7551383273. Listed at 5 retailers as of November 5, 2026, with prices from $642 to $2,458, a $1,816 spread on the same certified stone. NZ Jewellers lists it at $2,458. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
K
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 7551383273
Dimensions5.23 × 5.19 × 3.15 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cavity
Top View
5.23 mm5.19 mm0.50 ctK / SI1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 7551383273
Side View
Table 56.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 60.8%

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: Nov 5
Current: $2,458 AUD|Low: $642 AUD|High: $2,458 AUD|Avg: $1,231 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5$642 AUD
Retailer 4$691 AUD
Retailer 2$783 AUD
Retailer 3$1,480 AUD
NZ Jewellers$2,458 AUD

16 data points across 5 retailers

5 retailers$642 AUD to $2,458 AUD

B+
Cheapest Retailer
-
$642 AUD
B+
Retailer 2
-
$691 AUD
View
B+
Retailer 3
-
$783 AUD
View
C
Retailer 4
-
$1,480 AUD
View
Most Expensive
C
NZ Jewellers
100a0dd7-5b94-4a2c-bd74-bb130f8a867e · Nov 5
$2,458 AUD
$1,689 USD
View
4 more retailers have this diamond
Prices start from $642 AUDSave up to $1,816 AUD

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+
0.50ct Heart
$642 AUD