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Heart|Natural|GIA

1.31ct J SI2 Heart Natural Diamond

ID • J/SI2 • GIA 2557072119

Certificate GIA 2557072119

Diamond specifications and retailer prices

From $3,871 NZD
As of November 6, 2026
Save $4,863 NZD (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $10,845 NZD at NZ Jewellers · As of October 21, 2026
View at NZ Jewellers

About this 1.31ct natural heart diamond

This 1.31ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557072119. Listed at 13 retailers as of November 4, 2026, with a 126% 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

1.31
Carat
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557072119
Dimensions7.52 × 6.48 × 4.45 mm
L/W Ratio1.16
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
7.52 mm6.48 mm1.31 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557072119
Side View
Table 57.0%CrownGirdle: ThickPavilionCulet: NoneDepth 59.2%

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: $5,219 NZD|Low: $3,833 NZD|High: $8,805 NZD|Avg: $5,375 NZD|+1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7$3,871 NZD
Retailer 9$4,098 NZD
Retailer 12$4,699 NZD
Retailer 8$4,881 NZD
Retailer 11$4,997 NZD
Retailer 1$5,219 NZD
Retailer 10$5,423 NZD
Retailer 3$5,430 NZD
Retailer 4$5,430 NZD
Retailer 2$5,610 NZD
Retailer 5$6,095 NZD
Retailer 6$8,734 NZD

42 data points across 12 retailers

13 retailers$3,871 NZD to $8,734 NZD

A
Cheapest Retailer
-
$3,871 NZD
A
Retailer 2
-
$4,098 NZD
View
Retailer 3
-
$4,699 NZD
View
Price last confirmed 15 days ago
Retailer 4
-
$4,881 NZD
View
Price last confirmed 15 days ago
B+
Retailer 5
-
$4,997 NZD
View
B+
Retailer 6
-
$5,219 NZD
View
Retailer 7
-
$5,423 NZD
View
Price last confirmed 14 days ago
B+
Retailer 8
-
$5,430 NZD
View
B+
Retailer 9
-
$5,430 NZD
View
B+
Retailer 10
-
$5,610 NZD
View
B
Retailer 11
-
$6,095 NZD
View
B
Retailer 12
-
$8,734 NZD
View
Most Expensive
NZ Jewellers
6715673b-6111-4a68-84bc-2d2bea03b42e · Oct 21
$10,845 NZD
$6,012 USD
View
Price last confirmed 16 days ago
12 more retailers have this diamond
Prices start from $3,871 NZDSave up to $4,863 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
1.31ct Heart
$3,871 NZD