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Round|Natural|IGI

1.57ct J I1 Round Natural Diamond

EX • J/I1 • IGI 807683189

Shape and cutting style on the report: Round brilliant

Certificate IGI 807683189

Diamond specifications and retailer prices

From $3,058 AUD
$2,148 USD
As of November 1, 2026
Save $4,020 AUD (57%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,078 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.57ct natural round diamond

This 1.57ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI 807683189. Listed at 7 retailers as of October 30, 2026, with prices from $3,058 to $7,078, a $4,020 spread on the same certified stone. NZ Jewellers lists it at $7,078. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
J
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.3°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 807683189
Dimensions7.37 × 7.43 × 4.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.37 mm7.43 mm1.57 ctJ / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 807683189
Side View
Table 56.0%Crown 35.3°Girdle: MediumPavilion 41.6°CuletDepth 63.4%

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 1
Current: $7,078 AUD|Low: $3,058 AUD|High: $7,078 AUD|Avg: $4,397 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 6$3,058 AUD
Retailer 3$3,385 AUD
Retailer 4$3,385 AUD
Retailer 5$4,080 AUD
Retailer 2$4,211 AUD
Retailer 7$5,468 AUD
NZ Jewellers$7,078 AUD

14 data points across 7 retailers

7 retailers$3,058 AUD to $7,078 AUD

B+
Cheapest Retailer
-
$3,058 AUD
$2,148 USD
B+
Retailer 2
-
$3,385 AUD
$2,378 USD
View
B+
Retailer 3
-
$3,385 AUD
$2,378 USD
View
B+
Retailer 4
-
$3,542 AUD
$2,488 USD
View
B+
Retailer 5
-
$3,906 AUD
$2,744 USD
View
B+
Retailer 6
-
$4,211 AUD
€2,817 EUR
View
Most Expensive
B
NZ Jewellers
d68a372b-61e4-4005-a96d-366a8e3500e7 · Oct 30
$7,078 AUD
$4,972 USD
View
6 more retailers have this diamond
Prices start from $3,058 AUDSave up to $4,020 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.

B+
1.57ct Round
$3,058 AUD