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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 HK$21,161 HKD
As of November 6, 2026
Save HK$27,219 HKD (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$53,052 HKD 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
Colour
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 6
Current: HK$53,052 HKD|Low: HK$21,161 HKD|High: HK$53,201 HKD|Avg: HK$33,096 HKD|+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 12HK$21,161 HKD
Retailer 2HK$22,054 HKD
Retailer 13HK$26,726 HKD
Retailer 7HK$26,937 HKD
Retailer 6HK$27,768 HKD
Retailer 14HK$27,768 HKD
Retailer 9HK$28,732 HKD
Retailer 3HK$28,834 HKD
Retailer 8HK$29,422 HKD
Retailer 4HK$32,039 HKD
Retailer 10HK$33,889 HKD
Retailer 11HK$46,311 HKD
Retailer 5HK$48,380 HKD
QueensmithHK$53,052 HKD

26 data points across 14 retailers

21 retailersHK$21,161 HKD to HK$48,380 HKD

A
Cheapest Retailer
-
HK$21,161 HKD
A
Retailer 2
-
HK$22,054 HKD
View
A
Retailer 3
-
HK$25,260 HKD
View
A
Retailer 4
-
HK$25,628 HKD
View
Final sale: no returns
A
Retailer 5
-
HK$26,569 HKD
View
A
Retailer 6
-
HK$26,726 HKD
View
A
Retailer 7
-
HK$26,937 HKD
View
Retailer 8
-
HK$27,768 HKD
View
Price last confirmed 8 days ago
A
Retailer 9
-
HK$27,768 HKD
View
A
Retailer 10
-
HK$28,732 HKD
View
A
Retailer 11
-
HK$28,834 HKD
View
A
Retailer 12
-
HK$28,904 HKD
View
A
Retailer 13
-
HK$29,077 HKD
View
A
Retailer 14
-
HK$29,422 HKD
View
Retailer 15
-
HK$29,743 HKD
View
Price last confirmed 29 days ago
A
Retailer 16
-
HK$29,774 HKD
View
A
Retailer 17
-
HK$32,039 HKD
View
B+
Retailer 18
-
HK$33,889 HKD
View
B+
Retailer 19
-
HK$46,311 HKD
View
B
Retailer 20
-
HK$48,380 HKD
View
Most Expensive
Queensmith
7541510309 · Oct 28
HK$53,052 HKD
£5,330 GBP
View
Price last confirmed 9 days ago
20 more retailers have this diamond
Prices start from HK$21,161 HKDSave up to HK$27,219 HKD

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
HK$21,161 HKD