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Round|Natural|IGI

1.31ct G SI2 Round Natural Diamond

EX • G/SI2 • IGI 802616808

Shape and cutting style on the report: Round brilliant

Certificate IGI 802616808

Diamond specifications and retailer prices

From $4,204 AUD
$2,953 USD
As of October 30, 2026
Save $5,058 AUD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,262 AUD 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 802616808. Listed at 13 retailers as of October 30, 2026, with prices from $4,204 to $9,262, a $5,058 spread on the same certified stone. NZ Jewellers lists it at $9,262. 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
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 802616808
Dimensions6.92 × 6.98 × 4.35 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.92 mm6.98 mm1.31 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 802616808
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.6%

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: Oct 30
Current: $9,262 AUD|Low: $3,692 AUD|High: $9,262 AUD|Avg: $5,330 AUD|+9.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 6$3,736 AUD
Retailer 5$4,204 AUD
Retailer 3$4,316 AUD
Retailer 4$4,487 AUD
Retailer 14$4,816 AUD
Retailer 11$4,863 AUD
Retailer 9$4,878 AUD
Retailer 7$4,951 AUD
Retailer 12$5,001 AUD
Retailer 10$5,078 AUD
Retailer 13$5,558 AUD
Retailer 2$6,223 AUD
Retailer 8$8,977 AUD
NZ Jewellers$9,262 AUD

39 data points across 14 retailers

13 retailers$4,204 AUD to $9,262 AUD

A
Cheapest Retailer
-
$4,204 AUD
$2,953 USD
A
Retailer 2
-
$4,316 AUD
$3,032 USD
View
A
Retailer 3
-
$4,487 AUD
$3,152 USD
View
Final sale: no returns
A
Retailer 4
-
$4,816 AUD
$3,383 USD
View
A
Retailer 5
-
$4,863 AUD
$3,416 USD
View
A
Retailer 6
-
$4,878 AUD
$3,427 USD
View
A
Retailer 7
-
$4,951 AUD
£2,739 GBP
View
A
Retailer 8
-
$5,001 AUD
$3,513 USD
View
A
Retailer 9
-
$5,078 AUD
$3,567 USD
View
A
Retailer 10
-
$5,558 AUD
$3,904 USD
View
B+
Retailer 11
-
$6,223 AUD
€4,163 EUR
View
B
Retailer 12
-
$8,977 AUD
£4,965 GBP
View
Most Expensive
B
NZ Jewellers
51072c9b-ddcc-4ecb-a9ce-42999253959d · Oct 30
$9,262 AUD
$6,506 USD
View
12 more retailers have this diamond
Prices start from $4,204 AUDSave up to $5,058 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 Round
$4,204 AUD