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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 $5,123 SGD
$4,007 USD
As of November 1, 2026
Save $4,232 SGD (45%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $9,355 SGD at MOH London · As of November 1, 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 November 1, 2026, with prices from $5,123 to $9,355, a $4,232 spread on the same certified stone. MOH London lists it at $9,355. 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
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

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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: Nov 1
Current: $9,355 SGD|Low: $5,045 SGD|High: $9,467 SGD|Avg: $6,418 SGD|+2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7$5,121 SGD
Retailer 6$5,123 SGD
Retailer 3$5,229 SGD
Retailer 5$5,300 SGD
Retailer 4$5,873 SGD
Retailer 2$6,618 SGD
Retailer 8$6,822 SGD
Retailer 9$8,268 SGD
MOH London$9,355 SGD

28 data points across 9 retailers

6 retailers$5,123 SGD to $9,355 SGD

A
Cheapest Retailer
-
$5,123 SGD
$4,007 USD
A
Retailer 2
-
$5,229 SGD
$4,090 USD
View
B+
Retailer 3
-
$5,300 SGD
$4,146 USD
View
B+
Retailer 4
-
$5,873 SGD
$4,594 USD
View
B+
Retailer 5
-
$6,618 SGD
€4,930 EUR
View
Most Expensive
B
MOH London
78C51E100 · Nov 1
$9,355 SGD
£5,762 GBP
View
5 more retailers have this diamond
Prices start from $5,123 SGDSave up to $4,232 SGD

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
$5,123 SGD