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Heart|Natural|GIA

0.51ct K VS2 Heart Natural Diamond

VG • K/VS2 • GIA 5171725607

Certificate GIA 5171725607

Diamond specifications and retailer prices

From $1,419 AUD
As of November 4, 2026
Save $1,349 AUD (49%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,694 AUD at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded K colour (faint-tinted) and VS2 clarity (very-slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5171725607. Listed at 17 retailers as of November 4, 2026, with a 95% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.51
Carat
K
Colour
VS2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 5171725607
Dimensions5.21 × 4.65 × 2.74 mm
L/W Ratio1.12
Top View
5.21 mm4.65 mm0.51 ctK / VS2
OriginNatural
CutVery Good
PolishGood
SymmetryVery Good
FluorescenceStrong
CertificateGIA 5171725607
Side View
Table 65.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 52.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $3,694 AUD|Low: $1,419 AUD|High: $3,694 AUD|Avg: $2,027 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6$1,419 AUD
Retailer 8$1,479 AUD
Retailer 10$1,514 AUD
Retailer 9$1,572 AUD
Retailer 3$1,610 AUD
Retailer 11$1,746 AUD
Retailer 2$1,748 AUD
Retailer 4$1,758 AUD
Retailer 5$2,336 AUD
Retailer 7$2,768 AUD
NZ Jewellers$3,694 AUD

44 data points across 11 retailers

17 retailers$1,419 AUD to $2,768 AUD

B
Cheapest Retailer
-
$1,419 AUD
B
Retailer 2
-
$1,479 AUD
View
B
Retailer 3
-
$1,485 AUD
View
B
Retailer 4
-
$1,514 AUD
View
Retailer 5
-
$1,514 AUD
View
Price last confirmed 45 days ago
Retailer 6
-
$1,514 AUD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$1,572 AUD
View
B
Retailer 8
-
$1,610 AUD
View
Retailer 9
-
$1,746 AUD
View
Price last confirmed 45 days ago
C
Retailer 10
-
$1,746 AUD
View
C
Retailer 11
-
$1,746 AUD
View
B
Retailer 12
-
$1,748 AUD
View
C
Retailer 13
-
$1,758 AUD
View
C
Retailer 14
-
$2,336 AUD
View
C
Retailer 15
-
$2,768 AUD
View
Retailer 16
-
$3,694 AUD
View
Price under review
Most Expensive
NZ Jewellers
4be4cca3-2d9e-4a2e-a5f9-53a1fc0d5ac4 · Sep 20
$3,694 AUD
$2,538 USD
View
Price under review
16 more retailers have this diamond
Prices start from $1,419 AUDSave up to $1,349 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
0.51ct Heart
$1,419 AUD