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Heart|Natural|GIA

1.31ct E SI1 Heart Natural Diamond

FR • E/SI1 • GIA 6531863019

Certificate GIA 6531863019

Diamond specifications and retailer prices

From $4,883 AUD
As of November 5, 2026
Save $4,836 AUD (50%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $9,719 AUD at NZ Jewellers · As of November 5, 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 E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6531863019. Listed at 10 retailers as of November 5, 2026, with prices from $4,883 to $9,719, a $4,836 spread on the same certified stone. NZ Jewellers lists it at $9,719. 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

1.31
Carat
E
Colour
SI1
Clarity
Fair
Cut (retailer stated)

Specifications

Cut (retailer stated)Fair
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6531863019
Dimensions7.44 × 6.75 × 4.28 mm
L/W Ratio1.10
Top View
7.44 mm6.75 mm1.31 ctE / SI1
OriginNatural
CutFair
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6531863019
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 57.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $9,719 AUD|Low: $4,545 AUD|High: $10,130 AUD|Avg: $6,401 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4$4,883 AUD
Retailer 9$5,180 AUD
Retailer 2$5,411 AUD
Retailer 10$5,475 AUD
Retailer 8$5,579 AUD
Retailer 7$5,792 AUD
Retailer 5$5,986 AUD
Retailer 3$6,449 AUD
Retailer 6$9,328 AUD
NZ Jewellers$9,719 AUD

36 data points across 10 retailers

10 retailers$4,883 AUD to $9,719 AUD

A
Cheapest Retailer
-
$4,883 AUD
B+
Retailer 2
-
$5,180 AUD
View
B+
Retailer 3
-
$5,411 AUD
View
B+
Retailer 4
-
$5,475 AUD
View
Final sale: no returns
B+
Retailer 5
-
$5,579 AUD
View
B+
Retailer 6
-
$5,792 AUD
View
B+
Retailer 7
-
$5,986 AUD
View
B+
Retailer 8
-
$6,449 AUD
View
B
Retailer 9
-
$9,328 AUD
View
Most Expensive
C
NZ Jewellers
d8ccd210-ebc3-4255-9147-06ac1dee1eea · Nov 5
$9,719 AUD
$6,678 USD
View
9 more retailers have this diamond
Prices start from $4,883 AUDSave up to $4,836 AUD

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
$4,883 AUD