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1.31ct J SI2 Round Natural Diamond

EX • J/SI2 • IGI 773634536

Shape and cutting style on the report: Round brilliant

Certificate IGI 773634536

Diamond specifications and retailer prices

From $1,925 NZD
₹103,151 INR
As of October 31, 2026
Save $4,123 NZD (68%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,048 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.31ct natural round diamond

This 1.31ct natural round 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 and certified by IGI 773634536. Listed at 12 retailers as of October 30, 2026, with prices from $1,925 to $6,048, a $4,123 spread on the same certified stone. NZ Jewellers lists it at $6,048. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.7°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 773634536
Dimensions6.96 × 7.00 × 4.35 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.96 mm7.00 mm1.31 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateIGI 773634536
Side View
Table 59.0%Crown 35.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.4%

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: Oct 31
Current: $1,925 NZD|Low: $1,920 NZD|High: $4,596 NZD|Avg: $2,957 NZD|-2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 1$1,925 NZD
Retailer 6$2,300 NZD
Retailer 3$2,393 NZD
Retailer 7$2,595 NZD
Retailer 8$2,861 NZD
Retailer 5$2,934 NZD
Retailer 2$3,456 NZD
Retailer 4$4,566 NZD

41 data points across 8 retailers

12 retailers$1,925 NZD to $6,048 NZD

A
Cheapest Retailer
-
$1,925 NZD
₹103,151 INR
Retailer 2
-
$2,233 NZD
$1,256 USD
View
Price last confirmed 91 days ago
A
Retailer 3
-
$2,300 NZD
$1,294 USD
View
A
Retailer 4
-
$2,393 NZD
£1,060 GBP
View
B+
Retailer 5
-
$2,479 NZD
$1,395 USD
View
B+
Retailer 6
-
$2,479 NZD
$1,395 USD
View
B+
Retailer 7
-
$2,595 NZD
$1,460 USD
View
B+
Retailer 8
-
$2,861 NZD
$1,610 USD
View
B+
Retailer 9
-
$2,934 NZD
£1,300 GBP
View
B+
Retailer 10
-
$3,456 NZD
€1,852 EUR
View
B+
Retailer 11
-
$4,566 NZD
£2,023 GBP
View
Most Expensive
B
NZ Jewellers
7e06fc6b-2ef1-4f47-842f-9718ecfea2fc · Oct 30
$6,048 NZD
$3,403 USD
View
11 more retailers have this diamond
Prices start from $1,925 NZDSave up to $4,123 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 Round
$1,925 NZD