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Heart|Natural|GIA

0.51ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 5536726746

Certificate GIA 5536726746

Diamond specifications and retailer prices

From $1,472 NZD
$828 USD
As of November 2, 2026
Save $1,754 NZD (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,522 NZD at NZ Jewellers · As of October 30, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5536726746. Listed at 11 retailers as of November 2, 2026, with a 119% 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Pavilion angle38.8°
OriginNatural
Grading LabGIA
CertificateGIA 5536726746
Dimensions4.76 × 5.51 × 3.29 mm
L/W Ratio1.16
Top View
4.76 mm5.51 mm0.51 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5536726746
Side View
Table 57.0%CrownGirdle: STK-ETKPavilion 38.8°Culet: NoneDepth 59.7%

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 2
Current: $5,522 NZD|Low: $1,294 NZD|High: $5,522 NZD|Avg: $2,281 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 5$1,472 NZD
Retailer 8$1,596 NZD
Retailer 9$1,596 NZD
Retailer 6$1,656 NZD
Retailer 7$1,656 NZD
Retailer 10$1,841 NZD
Retailer 2$2,084 NZD
Retailer 4$2,207 NZD
Retailer 3$3,225 NZD
NZ Jewellers$5,522 NZD

39 data points across 10 retailers

11 retailers$1,472 NZD to $3,225 NZD

B+
Cheapest Retailer
-
$1,472 NZD
$828 USD
Final sale: no returns
B+
Retailer 2
-
$1,533 NZD
$863 USD
View
B+
Retailer 3
-
$1,596 NZD
$898 USD
View
B+
Retailer 4
-
$1,630 NZD
$917 USD
View
B+
Retailer 5
-
$1,656 NZD
$932 USD
View
B+
Retailer 6
-
$1,656 NZD
$932 USD
View
B
Retailer 7
-
$1,841 NZD
$1,036 USD
View
B
Retailer 8
-
$2,084 NZD
£923 GBP
View
B
Retailer 9
-
$2,207 NZD
£978 GBP
View
B
Retailer 10
-
$3,225 NZD
£1,429 GBP
View
Most Expensive
NZ Jewellers
ae66c21a-9a3b-4208-9d3a-d74a0da28ed7 · Oct 30
$5,522 NZD
$3,107 USD
View
Price under review
10 more retailers have this diamond
Prices start from $1,472 NZDSave up to $1,754 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.

B+
0.51ct Heart
$1,472 NZD