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Heart|Natural|GIA

1.03ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 2426335270

Certificate GIA 2426335270

Diamond specifications and retailer prices

From £1,301 GBP
As of November 6, 2026
Save £2,511 GBP (66%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,812 GBP at NZ Jewellers · As of November 5, 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 G 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 2426335270. Listed at 16 retailers as of November 5, 2026, with prices from £1,301 to £3,812, a £2,511 spread on the same certified stone. NZ Jewellers lists it at £3,812. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2426335270
Dimensions6.35 × 6.74 × 4.07 mm
L/W Ratio1.06
Top View
6.35 mm6.74 mm1.03 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2426335270
Side View
Table 60.0%CrownGirdle: MED-XTKPavilionCulet: NoneDepth 60.4%

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: £1,923 GBP|Low: £1,256 GBP|High: £3,232 GBP|Avg: £1,908 GBP|+0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 2£1,301 GBP
Retailer 6£1,329 GBP
Retailer 8£1,623 GBP
Retailer 7£1,682 GBP
Retailer 4£1,845 GBP
Retailer 9£1,907 GBP
Retailer 1£1,923 GBP
Retailer 3£2,264 GBP
Retailer 5£3,185 GBP

41 data points across 9 retailers

16 retailers£1,301 GBP to £3,812 GBP

A
Cheapest Retailer
-
£1,301 GBP
A
Retailer 2
-
£1,329 GBP
View
B+
Retailer 3
-
£1,599 GBP
View
B+
Retailer 4
-
£1,623 GBP
View
B+
Retailer 5
-
£1,682 GBP
View
Final sale: no returns
B+
Retailer 6
-
£1,823 GBP
View
Retailer 7
-
£1,823 GBP
View
Price last confirmed 9 days ago
B+
Retailer 8
-
£1,845 GBP
View
B+
Retailer 9
-
£1,907 GBP
View
B+
Retailer 10
-
£1,923 GBP
View
B
Retailer 11
-
£1,928 GBP
View
B+
Retailer 12
-
£2,104 GBP
View
B+
Retailer 13
-
£2,264 GBP
View
B
Retailer 14
-
£3,185 GBP
View
B
Retailer 15
-
£3,396 GBP
View
Most Expensive
B
NZ Jewellers
b5a8b972-f7ba-49fe-8b5a-8cefcc8d2d7b · Nov 5
£3,812 GBP
$5,102 USD
View
15 more retailers have this diamond
Prices start from £1,301 GBPSave up to £2,511 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
£1,301 GBP