CaratHunter
Plans
Round|Natural|IGI

1.31ct G SI2 Round Natural Diamond

EX • G/SI2 • IGI 127491116

Shape and cutting style on the report: Round brilliant

Certificate IGI 127491116

Diamond specifications and retailer prices

From $5,597 CAD
$4,007 USD
As of October 30, 2026
Save $4,680 CAD (46%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $10,277 CAD at MOH London · As of October 29, 2026
View at MOH London

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 127491116. Listed at 6 retailers as of October 29, 2026, with prices from $5,597 to $10,277, a $4,680 spread on the same certified stone. MOH London lists it at $10,277. 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
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 127491116
Dimensions7.04 × 6.99 × 4.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.04 mm6.99 mm1.31 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 127491116
Side View
Table 54.5%Crown 35°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 62.2%

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: $10,277 CAD|Low: $5,512 CAD|High: $10,345 CAD|Avg: $7,013 CAD|+2.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 7$5,596 CAD
Retailer 6$5,597 CAD
Retailer 3$5,713 CAD
Retailer 5$5,792 CAD
Retailer 4$6,417 CAD
Retailer 2$7,265 CAD
Retailer 8$7,454 CAD
Retailer 9$9,035 CAD
MOH London$10,277 CAD

27 data points across 9 retailers

6 retailers$5,597 CAD to $10,277 CAD

A
Cheapest Retailer
-
$5,597 CAD
$4,007 USD
Retailer 2
-
$5,713 CAD
$4,090 USD
View
Price last confirmed 10 days ago
B+
Retailer 3
-
$5,792 CAD
$4,146 USD
View
B+
Retailer 4
-
$6,417 CAD
$4,594 USD
View
B+
Retailer 5
-
$7,265 CAD
€4,953 EUR
View
Most Expensive
B
MOH London
78C51E100 · Oct 29
$10,277 CAD
£5,793 GBP
View
5 more retailers have this diamond
Prices start from $5,597 CADSave up to $4,680 CAD

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
$5,597 CAD