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Heart|Natural|GIA

1.31ct F SI2 Heart Natural Diamond

ID • F/SI2 • GIA 5232713301

Certificate GIA 5232713301

Diamond specifications and retailer prices

From £1,709 GBP
As of November 2, 2026
Save £1,907 GBP (53%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £3,616 GBP at NZ Jewellers · As of November 3, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5232713301. Listed at 6 retailers as of November 2, 2026, with prices from £1,709 to £3,616, a £1,907 spread on the same certified stone. NZ Jewellers lists it at £3,616. 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
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.96°
Pavilion angle40.83°
OriginNatural
Grading LabGIA
CertificateGIA 5232713301
Dimensions6.27 × 7.48 × 4.65 mm
L/W Ratio1.19
Top View
6.27 mm7.48 mm1.31 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5232713301
Side View
Table 59.0%Crown 38.96°Girdle: STK-VTKPavilion 40.83°Culet: NoneDepth 62.2%

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 2
Current: £3,616 GBP|Low: £1,709 GBP|High: £3,652 GBP|Avg: £2,265 GBP|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 2£1,709 GBP
Retailer 4£1,730 GBP
Retailer 5£1,810 GBP
Retailer 6£1,835 GBP
Retailer 10£2,000 GBP
Retailer 7£2,055 GBP
Retailer 9£2,242 GBP
Retailer 8£2,322 GBP
Retailer 3£3,030 GBP
NZ Jewellers£3,616 GBP

28 data points across 10 retailers

6 retailers£1,709 GBP to £3,616 GBP

A
Cheapest Retailer
-
£1,709 GBP
A
Retailer 2
-
£1,730 GBP
View
A
Retailer 3
-
£1,810 GBP
View
Retailer 4
-
£1,835 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
£3,030 GBP
View
Most Expensive
B+
NZ Jewellers
80755c09-6f37-4cbd-969b-8898c791569d · Nov 3
£3,616 GBP
$4,840 USD
View
5 more retailers have this diamond
Prices start from £1,709 GBPSave up to £1,907 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
£1,709 GBP