CaratHunter
Plans
Round|Natural|IGI

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 $1,087 USD
₹103,510 INR
As of October 30, 2026
Save $2,316 USD (68%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,403 USD 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 $1,087 to $3,403, a $2,316 spread on the same certified stone. NZ Jewellers lists it at $3,403. 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
Color
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 30
Current: $1,087 USD|Low: $1,080 USD|High: $2,586 USD|Avg: $1,663 USD|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 1$1,087 USD
Retailer 6$1,294 USD
Retailer 3$1,346 USD
Retailer 7$1,460 USD
Retailer 8$1,610 USD
Retailer 5$1,651 USD
Retailer 2$1,945 USD
Retailer 4$2,569 USD

42 data points across 8 retailers

12 retailers$1,087 USD to $3,403 USD

A
Cheapest Retailer
-
$1,087 USD
₹103,510 INR
Retailer 2
-
$1,256 USD
View
Price last confirmed 89 days ago
A
Retailer 3
-
$1,294 USD
View
A
Retailer 4
-
$1,346 USD
£1,060 GBP
View
B+
Retailer 5
-
$1,395 USD
View
B+
Retailer 6
-
$1,395 USD
View
B+
Retailer 7
-
$1,460 USD
View
B+
Retailer 8
-
$1,610 USD
View
B+
Retailer 9
-
$1,651 USD
£1,300 GBP
View
B+
Retailer 10
-
$1,945 USD
€1,852 EUR
View
B+
Retailer 11
-
$2,569 USD
£2,023 GBP
View
Most Expensive
B
NZ Jewellers
7e06fc6b-2ef1-4f47-842f-9718ecfea2fc · Oct 30
$3,403 USD
View
11 more retailers have this diamond
Prices start from $1,087 USDSave up to $2,316 USD

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
$1,087 USD