CaratHunter
Plans
Heart|Natural|GIA

1.31ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 7541510309

Certificate GIA 7541510309

Diamond specifications and retailer prices

From $3,798 CAD
As of November 4, 2026
Save $4,885 CAD (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,521 CAD at Queensmith · As of October 28, 2026
View at Queensmith

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7541510309. Listed at 21 retailers as of November 4, 2026, with a 129% 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7541510309
Dimensions7.71 × 6.91 × 4.42 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.71 mm6.91 mm1.31 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7541510309
Side View
Table 61.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 57.3%

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: Nov 4
Current: $9,521 CAD|Low: $3,798 CAD|High: $9,548 CAD|Avg: $5,937 CAD|+2.7%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 12$3,798 CAD
Retailer 10$3,974 CAD
Retailer 13$4,797 CAD
Retailer 2$4,834 CAD
Retailer 6$4,984 CAD
Retailer 14$4,984 CAD
Retailer 8$5,157 CAD
Retailer 3$5,175 CAD
Retailer 7$5,280 CAD
Retailer 4$5,750 CAD
Retailer 9$6,082 CAD
Retailer 11$8,312 CAD
Retailer 5$8,683 CAD
Queensmith$9,521 CAD

26 data points across 14 retailers

21 retailers$3,798 CAD to $8,683 CAD

A
Cheapest Retailer
-
$3,798 CAD
A
Retailer 2
-
$3,974 CAD
View
A
Retailer 3
-
$4,533 CAD
View
A
Retailer 4
-
$4,600 CAD
View
Final sale: no returns
A
Retailer 5
-
$4,768 CAD
View
A
Retailer 6
-
$4,797 CAD
View
A
Retailer 7
-
$4,834 CAD
View
Retailer 8
-
$4,984 CAD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$4,984 CAD
View
A
Retailer 10
-
$5,157 CAD
View
A
Retailer 11
-
$5,175 CAD
View
A
Retailer 12
-
$5,188 CAD
View
A
Retailer 13
-
$5,218 CAD
View
A
Retailer 14
-
$5,280 CAD
View
Retailer 15
-
$5,338 CAD
View
Price last confirmed 29 days ago
A
Retailer 16
-
$5,344 CAD
View
A
Retailer 17
-
$5,750 CAD
View
B+
Retailer 18
-
$6,082 CAD
View
B+
Retailer 19
-
$8,312 CAD
View
B
Retailer 20
-
$8,683 CAD
View
Most Expensive
Queensmith
7541510309 · Oct 28
$9,521 CAD
£5,330 GBP
View
Price last confirmed 9 days ago
20 more retailers have this diamond
Prices start from $3,798 CADSave up to $4,885 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
$3,798 CAD