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Heart|Natural|GIA

1.31ct G SI2 Heart Natural Diamond

FR • G/SI2 • GIA 6531940851

Certificate GIA 6531940851

Diamond specifications and retailer prices

From $3,578 CAD
SGD 3,461 SGD
As of October 31, 2026
Save $3,639 CAD (50%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $8,298 CAD at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.31ct natural heart diamond

This 1.31ct natural heart 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6531940851. Listed at 5 retailers as of October 29, 2026, with a 102% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.31
Carat
G
Color
SI2
Clarity
Fair
Cut (retailer stated)

Specifications

Cut (retailer stated)Fair
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6531940851
Dimensions7.34 × 6.34 × 4.06 mm
L/W Ratio1.16
Top View
7.34 mm6.34 mm1.31 ctG / SI2
OriginNatural
CutFair
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531940851
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.0%

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 31
Current: $3,578 CAD|Low: $3,578 CAD|High: $8,292 CAD|Avg: $4,904 CAD|-14.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 1$3,578 CAD
Retailer 5$3,622 CAD
Retailer 2$4,076 CAD
Retailer 9$4,235 CAD
Retailer 4$4,819 CAD
Retailer 8$4,837 CAD
Retailer 6$5,056 CAD
Retailer 7$5,078 CAD
Retailer 3$7,217 CAD

15 data points across 9 retailers

5 retailers$3,578 CAD to $7,217 CAD

A
Cheapest Retailer
-
$3,578 CAD
SGD 3,461 SGD
B+
Retailer 2
-
$4,076 CAD
$2,918 USD
View
Retailer 3
-
$4,315 CAD
$3,089 USD
View
Price last confirmed 39 days ago
B
Retailer 4
-
$7,217 CAD
£4,068 GBP
View
Most Expensive
NZ Jewellers
9d6dd1a0-4b55-4b47-9d7e-cd16334264a0 · Sep 20
$8,298 CAD
$5,940 USD
View
Price last confirmed 41 days ago
4 more retailers have this diamond
Prices start from $3,578 CADSave up to $3,639 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 Heart
$3,578 CAD