Round|Natural|IGI

1.31ct I IF Round Natural Diamond

EX • I/IF • IGI 713558121

Shape and cutting style on the report: Round brilliant

Certificate IGI 713558121

Diamond specifications and retailer prices

From $3,063 USD
As of October 30, 2026
Save $2,737 USD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,176 USD at NZ Jewellers · As of October 17, 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 I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 713558121. Listed at 15 retailers as of October 29, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
I
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 713558121
Dimensions6.96 × 6.90 × 4.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.96 mm6.90 mm1.31 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 713558121
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.9%

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: $4,241 USD|Low: $3,063 USD|High: $5,999 USD|Avg: $3,872 USD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 8$3,063 USD
Retailer 6$3,091 USD
Retailer 2$3,245 USD
Retailer 9$3,450 USD
Retailer 3$3,649 USD
Retailer 7$4,007 USD
Retailer 4$4,038 USD
Retailer 1$4,241 USD
Retailer 5$5,800 USD

37 data points across 9 retailers

15 retailers$3,063 USD to $5,800 USD

A
Cheapest Retailer
-
$3,063 USD
A
Retailer 2
-
$3,091 USD
View
A
Retailer 3
-
$3,245 USD
View
Retailer 4
-
$3,315 USD
View
Price last confirmed 96 days ago
Retailer 5
-
$3,450 USD
View
Price last confirmed 38 days ago
Retailer 6
-
$3,545 USD
View
Price last confirmed 13 days ago
Retailer 7
-
$3,545 USD
View
Price last confirmed 15 days ago
A
Retailer 8
-
$3,649 USD
£2,874 GBP
View
Retailer 9
-
$3,981 USD
View
Price last confirmed 39 days ago
A
Retailer 10
-
$4,007 USD
£3,155 GBP
View
A
Retailer 11
-
$4,038 USD
€3,846 EUR
View
A
Retailer 12
-
$4,241 USD
ZAR 68,509 ZAR
View
A
Retailer 13
-
$5,800 USD
£4,567 GBP
View
Retailer 14
-
$6,011 USD
View
Price last confirmed 40 days ago
Most Expensive
NZ Jewellers
e3413bef-ea9a-4f72-bd74-d1b582fa9b75 · Oct 17
$6,176 USD
View
Price last confirmed 14 days ago
14 more retailers have this diamond
Prices start from $3,063 USDSave up to $2,737 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
$3,063 USD