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Heart|Natural|GIA

0.51ct E SI1 Heart Natural Diamond

ID • E/SI1 • GIA 5536992227

Certificate GIA 5536992227

Diamond specifications and retailer prices

From $792 NZD
As of November 6, 2026
Save $456 NZD (37%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,906 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 E 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 5536992227. Listed at 14 retailers as of November 6, 2026, with a 58% 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

0.51
Carat
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle42.9°
OriginNatural
Grading LabGIA
CertificateGIA 5536992227
Dimensions4.62 × 5.49 × 3.50 mm
L/W Ratio1.19
Top View
4.62 mm5.49 mm0.51 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5536992227
Side View
Table 59.0%CrownGirdle: MED-THKPavilion 42.9°Culet: NoneDepth 63.8%

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 6
Current: $1,010 NZD|Low: $583 NZD|High: $2,004 NZD|Avg: $1,100 NZD|+2.4%
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
Retailer 14
Retailer 15
November 6, 2026
Retailer 15$792 NZD
Retailer 13$794 NZD
Retailer 2$830 NZD
Retailer 10$853 NZD
Retailer 12$909 NZD
Retailer 14$916 NZD
Retailer 8$945 NZD
Retailer 1$1,010 NZD
Retailer 7$1,028 NZD
Retailer 9$1,081 NZD
Retailer 5$1,227 NZD
Retailer 11$1,248 NZD
Retailer 4$1,329 NZD
Retailer 6$1,333 NZD
Retailer 3$2,004 NZD

39 data points across 15 retailers

14 retailers$792 NZD to $1,248 NZD

A
Cheapest Retailer
-
$792 NZD
Final sale: no returns
A
Retailer 2
-
$794 NZD
View
A
Retailer 3
-
$830 NZD
View
A
Retailer 4
-
$853 NZD
View
A
Retailer 5
-
$909 NZD
View
Retailer 6
-
$916 NZD
View
Price last confirmed 19 days ago
A
Retailer 7
-
$945 NZD
View
A
Retailer 8
-
$1,010 NZD
View
A
Retailer 9
-
$1,081 NZD
View
B+
Retailer 10
-
$1,248 NZD
View
Retailer 11
-
$1,329 NZD
View
Price last confirmed 30 days ago
Retailer 12
-
$1,333 NZD
View
Price last confirmed 34 days ago
Retailer 13
-
$2,004 NZD
View
Price last confirmed 29 days ago
Most Expensive
NZ Jewellers
0e3a3b94-9eb8-4298-8d6f-681678d05d41 · Sep 25
$2,906 NZD
$1,611 USD
View
Price last confirmed 42 days ago
13 more retailers have this diamond
Prices start from $792 NZDSave up to $456 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
$792 NZD