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Heart|Natural|GIA

1.51ct J SI2 Heart Natural Diamond

VG • J/SI2 • GIA 6555416730

Certificate GIA 6555416730

Diamond specifications and retailer prices

From $5,362 NZD
$3,017 USD
As of November 1, 2026
Save $6,405 NZD (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $13,200 NZD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6555416730. Listed at 13 retailers as of November 1, 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. 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

1.51
Carat
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555416730
Dimensions7.00 × 7.96 × 4.59 mm
L/W Ratio1.14
Girdle conditionFaceted
Top View
7.00 mm7.96 mm1.51 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555416730
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.7%

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 1
Current: $11,767 NZD|Low: $5,298 NZD|High: $12,807 NZD|Avg: $7,656 NZD|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 11$5,362 NZD
Retailer 5$5,414 NZD
Retailer 10$5,700 NZD
Retailer 2$5,803 NZD
Retailer 8$5,883 NZD
Retailer 4$6,789 NZD
Retailer 6$6,956 NZD
Retailer 9$7,198 NZD
Retailer 7$9,633 NZD
Retailer 3$11,171 NZD
Retailer 1$11,767 NZD

31 data points across 11 retailers

13 retailers$5,362 NZD to $11,767 NZD

A
Cheapest Retailer
-
$5,362 NZD
$3,017 USD
A
Retailer 2
-
$5,414 NZD
HK$23,800 HKD
View
A
Retailer 3
-
$5,700 NZD
$3,207 USD
View
B+
Retailer 4
-
$5,803 NZD
$3,265 USD
View
A
Retailer 5
-
$5,883 NZD
$3,310 USD
View
Final sale: no returns
B+
Retailer 6
-
$6,789 NZD
$3,820 USD
View
B+
Retailer 7
-
$6,956 NZD
£3,082 GBP
View
B+
Retailer 8
-
$7,198 NZD
£3,189 GBP
View
B
Retailer 9
-
$7,541 NZD
A$6,528 AUD
View
B
Retailer 10
-
$9,633 NZD
$5,420 USD
View
Retailer 11
-
$11,171 NZD
$6,285 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
$11,767 NZD
£5,213 GBP
View
Most Expensive
NZ Jewellers
6f2462ab-5ecf-4591-b833-fc925a441d77 · Sep 25
$13,200 NZD
$7,427 USD
View
Price last confirmed 38 days ago
12 more retailers have this diamond
Prices start from $5,362 NZDSave up to $6,405 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
1.51ct Heart
$5,362 NZD