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Round|Natural|GIA

1.31ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 2557411953

Certificate GIA 2557411953

Diamond specifications and retailer prices

From $4,402 CAD
$3,151 USD
As of October 31, 2026
Save $3,617 CAD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,310 CAD at NZ Jewellers · As of October 3, 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 GIA 2557411953. Listed at 11 retailers as of October 29, 2026, with a 82% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2557411953
Dimensions6.96 × 7.01 × 4.35 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle, Feather
Top View
6.96 mm7.01 mm1.31 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557411953
Side View
Table 60.0%Crown 33°Girdle: Slightly ThickPavilion 41.8°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: Oct 31
Current: $4,954 CAD|Low: $4,036 CAD|High: $8,107 CAD|Avg: $5,554 CAD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 4$4,402 CAD
Retailer 2$4,413 CAD
Retailer 1$4,954 CAD
Retailer 6$4,973 CAD
Retailer 3$5,597 CAD
Retailer 7$5,700 CAD
Retailer 5$8,019 CAD

32 data points across 7 retailers

11 retailers$4,402 CAD to $8,019 CAD

A
Cheapest Retailer
-
$4,402 CAD
$3,151 USD
Final sale: no returns
A
Retailer 2
-
$4,413 CAD
£2,487 GBP
View
Retailer 3
-
$4,769 CAD
$3,414 USD
View
Price last confirmed 23 days ago
Retailer 4
-
$4,769 CAD
$3,414 USD
View
Price last confirmed 23 days ago
A
Retailer 5
-
$4,954 CAD
£2,793 GBP
View
Retailer 6
-
$4,973 CAD
$3,560 USD
View
Price last confirmed 23 days ago
Retailer 7
-
$4,974 CAD
$3,561 USD
View
Price last confirmed 32 days ago
Retailer 8
-
$5,504 CAD
$3,940 USD
View
Price last confirmed 29 days ago
A
Retailer 9
-
$5,597 CAD
€3,816 EUR
View
B
Retailer 10
-
$8,019 CAD
£4,520 GBP
View
Most Expensive
NZ Jewellers
c43b5840-6924-4435-9b8e-666816816f05 · Oct 3
$8,310 CAD
$5,949 USD
View
Price last confirmed 28 days ago
10 more retailers have this diamond
Prices start from $4,402 CADSave up to $3,617 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
$4,402 CAD