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Heart|Natural|GIA

1.31ct E SI1 Heart Natural Diamond

FR • E/SI1 • GIA 6531863019

Certificate GIA 6531863019

Diamond specifications and retailer prices

From £2,507 GBP
As of November 5, 2026
Save £2,483 GBP (50%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,989 GBP at NZ Jewellers · As of November 5, 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 E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6531863019. Listed at 10 retailers as of November 5, 2026, with prices from £2,507 to £4,989, a £2,483 spread on the same certified stone. NZ Jewellers lists it at £4,989. 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
E
Colour
SI1
Clarity
Fair
Cut (retailer stated)

Specifications

Cut (retailer stated)Fair
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6531863019
Dimensions7.44 × 6.75 × 4.28 mm
L/W Ratio1.10
Top View
7.44 mm6.75 mm1.31 ctE / SI1
OriginNatural
CutFair
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6531863019
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 57.6%

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 5
Current: £4,989 GBP|Low: £2,333 GBP|High: £5,200 GBP|Avg: £3,286 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4£2,507 GBP
Retailer 9£2,659 GBP
Retailer 2£2,778 GBP
Retailer 10£2,811 GBP
Retailer 8£2,864 GBP
Retailer 7£2,973 GBP
Retailer 5£3,073 GBP
Retailer 3£3,310 GBP
Retailer 6£4,788 GBP
NZ Jewellers£4,989 GBP

36 data points across 10 retailers

10 retailers£2,507 GBP to £4,989 GBP

A
Cheapest Retailer
-
£2,507 GBP
B+
Retailer 2
-
£2,659 GBP
View
B+
Retailer 3
-
£2,778 GBP
View
B+
Retailer 4
-
£2,811 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,864 GBP
View
B+
Retailer 6
-
£2,973 GBP
View
B+
Retailer 7
-
£3,073 GBP
View
B+
Retailer 8
-
£3,310 GBP
View
B
Retailer 9
-
£4,788 GBP
View
Most Expensive
C
NZ Jewellers
d8ccd210-ebc3-4255-9147-06ac1dee1eea · Nov 5
£4,989 GBP
$6,678 USD
View
9 more retailers have this diamond
Prices start from £2,507 GBPSave up to £2,483 GBP

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
£2,507 GBP