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Heart|Natural|GIA

1.25ct J SI2 Heart Natural Diamond

VG • J/SI2 • GIA 2245081371

Certificate GIA 2245081371

Diamond specifications and retailer prices

From £1,042 GBP
As of November 6, 2026
Save £2,510 GBP (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,553 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.25ct natural heart diamond

This 1.25ct 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2245081371. Listed at 11 retailers as of November 5, 2026, with prices from £1,042 to £3,553, a £2,510 spread on the same certified stone. NZ Jewellers lists it at £3,553. 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

1.25
Carat
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2245081371
Dimensions6.43 × 7.50 × 4.37 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
6.43 mm7.50 mm1.25 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245081371
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.3%

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: £3,553 GBP|Low: £1,033 GBP|High: £3,617 GBP|Avg: £1,769 GBP|+9.3%
NZ Jewellers
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 10£1,042 GBP
Retailer 9£1,334 GBP
Retailer 11£1,344 GBP
Retailer 8£1,398 GBP
Retailer 2£1,443 GBP
Retailer 6£1,451 GBP
Retailer 7£1,452 GBP
Retailer 3£1,507 GBP
Retailer 4£1,619 GBP
Retailer 5£2,234 GBP
Retailer 12£2,520 GBP
NZ Jewellers£3,553 GBP

30 data points across 12 retailers

11 retailers£1,042 GBP to £3,553 GBP

A
Cheapest Retailer
-
£1,042 GBP
A
Retailer 2
-
£1,334 GBP
View
A
Retailer 3
-
£1,344 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,398 GBP
View
B+
Retailer 5
-
£1,443 GBP
View
A
Retailer 6
-
£1,451 GBP
View
A
Retailer 7
-
£1,452 GBP
View
A
Retailer 8
-
£1,507 GBP
View
B+
Retailer 9
-
£2,234 GBP
View
B
Retailer 10
-
£2,520 GBP
View
Most Expensive
C
NZ Jewellers
efc12598-9c1b-4e25-870d-773e54d428ba · Nov 5
£3,553 GBP
$4,755 USD
View
10 more retailers have this diamond
Prices start from £1,042 GBPSave up to £2,510 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
1.25ct Heart
£1,042 GBP