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Heart|Natural|GIA

1.03ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 2544655835

Certificate GIA 2544655835

Diamond specifications and retailer prices

From £1,224 GBP
As of November 6, 2026
Save £1,695 GBP (58%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,661 GBP at NZ Jewellers · As of September 25, 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 D 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 2544655835. Listed at 11 retailers as of November 4, 2026, with a 139% 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

1.03
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.9°
OriginNatural
Grading LabGIA
CertificateGIA 2544655835
Dimensions6.03 × 7.07 × 4.13 mm
L/W Ratio1.17
Top View
6.03 mm7.07 mm1.03 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2544655835
Side View
Table 59.0%CrownGirdle: THN-STKPavilion 40.9°Culet: NoneDepth 58.4%

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: £2,509 GBP|Low: £1,224 GBP|High: £3,101 GBP|Avg: £1,803 GBP|-9.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4£1,224 GBP
Retailer 6£1,240 GBP
Retailer 9£1,397 GBP
Retailer 8£1,422 GBP
Retailer 3£1,509 GBP
Retailer 10£1,527 GBP
Retailer 5£1,715 GBP
Retailer 2£1,892 GBP
Retailer 1£2,509 GBP
Retailer 7£2,919 GBP

37 data points across 10 retailers

11 retailers£1,224 GBP to £2,919 GBP

A
Cheapest Retailer
-
£1,224 GBP
A
Retailer 2
-
£1,240 GBP
View
A
Retailer 3
-
£1,397 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,422 GBP
View
A
Retailer 5
-
£1,509 GBP
View
A
Retailer 6
-
£1,527 GBP
View
A
Retailer 7
-
£1,715 GBP
View
B+
Retailer 8
-
£1,892 GBP
View
B+
Retailer 9
-
£2,509 GBP
View
B
Retailer 10
-
£2,919 GBP
View
Most Expensive
NZ Jewellers
b40edfe2-e6ba-4a05-b2ce-8a7f2b394306 · Sep 25
£3,661 GBP
$4,900 USD
View
Price last confirmed 42 days ago
10 more retailers have this diamond
Prices start from £1,224 GBPSave up to £1,695 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
£1,224 GBP