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Heart|Natural|GIA

1.03ct F SI2 Heart Natural Diamond

ID • F/SI2 • GIA 2507448839

Certificate GIA 2507448839

Diamond specifications and retailer prices

From £1,387 GBP
As of November 2, 2026
Save £2,034 GBP (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £3,421 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.03ct natural heart diamond

This 1.03ct natural heart sits in the classic one-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 2507448839. Listed at 6 retailers as of October 30, 2026, with prices from £1,387 to £3,421, a £2,034 spread on the same certified stone. NZ Jewellers lists it at £3,421. 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

1.03
Carat
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.48°
Pavilion angle41.23°
OriginNatural
Grading LabGIA
CertificateGIA 2507448839
Dimensions7.02 × 6.21 × 4.15 mm
L/W Ratio1.13
Top View
7.02 mm6.21 mm1.03 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2507448839
Side View
Table 60.0%Crown 36.48°Girdle: Slightly ThickPavilion 41.23°Culet: NoneDepth 59.2%

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 2
Current: £3,421 GBP|Low: £1,387 GBP|High: £3,505 GBP|Avg: £1,934 GBP|-2.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 3£1,387 GBP
Retailer 6£1,402 GBP
Retailer 4£1,467 GBP
Retailer 5£1,501 GBP
Retailer 9£1,670 GBP
Retailer 7£1,715 GBP
Retailer 8£1,865 GBP
Retailer 2£2,458 GBP
NZ Jewellers£3,421 GBP

30 data points across 9 retailers

6 retailers£1,387 GBP to £3,421 GBP

A
Cheapest Retailer
-
£1,387 GBP
A
Retailer 2
-
£1,402 GBP
$1,882 USD
View
A
Retailer 3
-
£1,467 GBP
$1,969 USD
View
A
Retailer 4
-
£1,501 GBP
$2,014 USD
View
B
Retailer 5
-
£2,458 GBP
View
Most Expensive
B
NZ Jewellers
596506b5-1c78-4ad5-b592-3c6c6f0cce61 · Oct 30
£3,421 GBP
$4,591 USD
View
5 more retailers have this diamond
Prices start from £1,387 GBPSave up to £2,034 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
1.03ct Heart
£1,387 GBP