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Heart|Natural|GIA

1.31ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 7541510309

Certificate GIA 7541510309

Diamond specifications and retailer prices

From $2,700 USD
As of November 6, 2026
Save $3,473 USD (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,769 USD 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 5, 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,769 USD|Low: $2,700 USD|High: $6,788 USD|Avg: $4,223 USD|+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$2,700 USD
Retailer 2$2,814 USD
Retailer 13$3,410 USD
Retailer 7$3,437 USD
Retailer 6$3,543 USD
Retailer 14$3,543 USD
Retailer 9$3,666 USD
Retailer 3$3,679 USD
Retailer 8$3,754 USD
Retailer 4$4,088 USD
Retailer 10$4,324 USD
Retailer 11$5,909 USD
Retailer 5$6,173 USD
Queensmith$6,769 USD

26 data points across 14 retailers

21 retailers$2,700 USD to $6,173 USD

A
Cheapest Retailer
-
$2,700 USD
A
Retailer 2
-
$2,814 USD
View
A
Retailer 3
-
$3,223 USD
View
A
Retailer 4
-
$3,270 USD
View
Final sale: no returns
A
Retailer 5
-
$3,390 USD
View
A
Retailer 6
-
$3,410 USD
View
A
Retailer 7
-
$3,437 USD
View
Retailer 8
-
$3,543 USD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$3,543 USD
View
A
Retailer 10
-
$3,666 USD
View
A
Retailer 11
-
$3,679 USD
View
A
Retailer 12
-
$3,688 USD
View
A
Retailer 13
-
$3,710 USD
View
A
Retailer 14
-
$3,754 USD
View
Retailer 15
-
$3,795 USD
View
Price last confirmed 29 days ago
A
Retailer 16
-
$3,799 USD
View
A
Retailer 17
-
$4,088 USD
View
B+
Retailer 18
-
$4,324 USD
View
B+
Retailer 19
-
$5,909 USD
View
B
Retailer 20
-
$6,173 USD
View
Most Expensive
Queensmith
7541510309 · Oct 28
$6,769 USD
£5,330 GBP
View
Price last confirmed 9 days ago
20 more retailers have this diamond
Prices start from $2,700 USDSave up to $3,473 USD

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
$2,700 USD