Heart|Natural|GIA

0.51ct K IF Heart Natural Diamond

EX • K/IF • GIA 6545351327

Certificate GIA 6545351327

Diamond specifications and retailer prices

From $965 NZD
As of November 5, 2026
12 retailers carry this diamond
Most expensive: $3,043 NZD at NZ Jewellers · As of September 25, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545351327. Listed at 12 retailers as of November 5, 2026. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
K
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle39.1°
OriginNatural
Grading LabGIA
CertificateGIA 6545351327
Dimensions4.73 × 5.47 × 3.43 mm
L/W Ratio1.16
Top View
4.73 mm5.47 mm0.51 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6545351327
Side View
Table 57.0%CrownGirdle: THN-THKPavilion 39.1°Culet: NoneDepth 62.7%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $965 NZD|Low: $599 NZD|High: $1,838 NZD|Avg: $983 NZD|+0.4%
Retailer 1
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 5, 2026
Retailer 3$599 NZD
Retailer 4$667 NZD
Retailer 2$702 NZD
Retailer 13$743 NZD
Retailer 7$788 NZD
Retailer 6$830 NZD
Retailer 5$873 NZD
Retailer 1$965 NZD
Retailer 9$1,052 NZD
Retailer 10$1,126 NZD
Retailer 11$1,136 NZD
Retailer 8$1,160 NZD
Retailer 12$1,766 NZD

30 data points across 13 retailers

12 retailers

Retailer 1
-
$599 NZD
Price last confirmed 11 days ago
Retailer 2
-
$667 NZD
View
Price last confirmed 15 days ago
Retailer 3
-
$743 NZD
View
Price last confirmed 15 days ago
Retailer 4
-
$788 NZD
View
Price last confirmed 13 days ago
Retailer 5
-
$830 NZD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$965 NZD
View
Retailer 7
-
$1,052 NZD
View
Price last confirmed 15 days ago
Retailer 8
-
$1,126 NZD
View
Price last confirmed 10 days ago
Retailer 9
-
$1,136 NZD
View
Price last confirmed 15 days ago
Retailer 10
-
$1,160 NZD
View
Price last confirmed 17 days ago
Retailer 11
-
$1,766 NZD
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
a721244d-a320-4248-95f0-142f0814ba4f · Sep 25
$3,043 NZD
$1,687 USD
View
Price last confirmed 42 days ago
11 more retailers have this diamond
Prices start from $965 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
0.51ct Heart
$965 NZD