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Heart|Natural|GIA

0.51ct I IF Heart Natural Diamond

EX • I/IF • GIA 7546085420

Certificate GIA 7546085420

Diamond specifications and retailer prices

From $797 NZD
As of November 4, 2026
Save $1,451 NZD (65%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,248 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded I colour (near-colourless) 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 7546085420. Listed at 14 retailers as of November 2, 2026, with prices from $797 to $2,248, a $1,451 spread on the same certified stone. MOH London lists it at $2,248. 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
I
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle37.8°
OriginNatural
Grading LabGIA
CertificateGIA 7546085420
Dimensions4.65 × 5.50 × 3.27 mm
L/W Ratio1.18
Girdle conditionFaceted
Top View
4.65 mm5.50 mm0.51 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7546085420
Side View
Table 59.0%CrownGirdle: STK-VTKPavilion 37.8°Culet: NoneDepth 59.5%

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 4
Current: $2,248 NZD|Low: $649 NZD|High: $2,307 NZD|Avg: $1,207 NZD|-2.5%
MOH London
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 6, 2026
Retailer 11$797 NZD
Retailer 12$897 NZD
Retailer 5$907 NZD
Retailer 4$998 NZD
Retailer 8$1,007 NZD
Retailer 10$1,023 NZD
Retailer 2$1,089 NZD
Retailer 6$1,224 NZD
Retailer 3$1,325 NZD
Retailer 13$1,345 NZD
Retailer 9$1,427 NZD
Retailer 7$1,501 NZD
MOH London$2,248 NZD

30 data points across 13 retailers

14 retailers$797 NZD to $2,248 NZD

A
Cheapest Retailer
-
$797 NZD
A
Retailer 2
-
$897 NZD
View
Final sale: no returns
A
Retailer 3
-
$907 NZD
View
Retailer 4
-
$998 NZD
View
Price last confirmed 14 days ago
A
Retailer 5
-
$1,007 NZD
View
A
Retailer 6
-
$1,023 NZD
View
A
Retailer 7
-
$1,089 NZD
View
A
Retailer 8
-
$1,224 NZD
View
A
Retailer 9
-
$1,325 NZD
View
B+
Retailer 10
-
$1,345 NZD
View
B+
Retailer 11
-
$1,427 NZD
View
Retailer 12
-
$1,462 NZD
View
Price last confirmed 33 days ago
B+
Retailer 13
-
$1,501 NZD
View
Most Expensive
B
MOH London
43628ED66 · Nov 2
$2,248 NZD
£995 GBP
View
13 more retailers have this diamond
Prices start from $797 NZDSave up to $1,451 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
$797 NZD