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Heart|Natural|GIA

1.31ct J SI2 Heart Natural Diamond

ID • J/SI2 • GIA 2557072119

Certificate GIA 2557072119

Diamond specifications and retailer prices

From £1,603 GBP
As of November 6, 2026
Save £2,014 GBP (56%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,492 GBP at NZ Jewellers · As of October 21, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557072119. Listed at 13 retailers as of November 4, 2026, with a 126% 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
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557072119
Dimensions7.52 × 6.48 × 4.45 mm
L/W Ratio1.16
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
7.52 mm6.48 mm1.31 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557072119
Side View
Table 57.0%CrownGirdle: ThickPavilionCulet: NoneDepth 59.2%

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 6
Current: £2,161 GBP|Low: £1,588 GBP|High: £3,647 GBP|Avg: £2,226 GBP|+1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7£1,603 GBP
Retailer 9£1,697 GBP
Retailer 12£1,946 GBP
Retailer 8£2,022 GBP
Retailer 11£2,069 GBP
Retailer 1£2,161 GBP
Retailer 10£2,246 GBP
Retailer 3£2,249 GBP
Retailer 4£2,249 GBP
Retailer 2£2,324 GBP
Retailer 5£2,524 GBP
Retailer 6£3,618 GBP

42 data points across 12 retailers

13 retailers£1,603 GBP to £3,618 GBP

A
Cheapest Retailer
-
£1,603 GBP
A
Retailer 2
-
£1,697 GBP
View
Retailer 3
-
£1,946 GBP
View
Price last confirmed 15 days ago
Retailer 4
-
£2,022 GBP
View
Price last confirmed 15 days ago
B+
Retailer 5
-
£2,069 GBP
View
B+
Retailer 6
-
£2,161 GBP
View
Retailer 7
-
£2,246 GBP
View
Price last confirmed 14 days ago
B+
Retailer 8
-
£2,249 GBP
View
B+
Retailer 9
-
£2,249 GBP
View
B+
Retailer 10
-
£2,324 GBP
View
B
Retailer 11
-
£2,524 GBP
View
B
Retailer 12
-
£3,618 GBP
View
Most Expensive
NZ Jewellers
6715673b-6111-4a68-84bc-2d2bea03b42e · Oct 21
£4,492 GBP
$6,012 USD
View
Price last confirmed 16 days ago
12 more retailers have this diamond
Prices start from £1,603 GBPSave up to £2,014 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
£1,603 GBP