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Heart|Natural|GIA

1.02ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 3425255703

Certificate GIA 3425255703

Diamond specifications and retailer prices

From £1,264 GBP
As of November 6, 2026
Save £2,253 GBP (64%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,517 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.02ct natural heart diamond

This 1.02ct 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 3425255703. Listed at 11 retailers as of November 5, 2026, with prices from £1,264 to £3,517, a £2,253 spread on the same certified stone. NZ Jewellers lists it at £3,517. 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

1.02
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3425255703
Dimensions6.54 × 6.92 × 3.78 mm
L/W Ratio1.06
Top View
6.54 mm6.92 mm1.02 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3425255703
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 54.6%

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: £3,517 GBP|Low: £1,264 GBP|High: £3,517 GBP|Avg: £1,830 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9£1,264 GBP
Retailer 10£1,372 GBP
Retailer 6£1,442 GBP
Retailer 7£1,442 GBP
Retailer 5£1,508 GBP
Retailer 3£1,565 GBP
Retailer 8£1,664 GBP
Retailer 2£1,957 GBP
Retailer 4£2,519 GBP
NZ Jewellers£3,517 GBP

44 data points across 10 retailers

11 retailers£1,264 GBP to £3,517 GBP

A
Cheapest Retailer
-
£1,264 GBP
A
Retailer 2
-
£1,302 GBP
View
Retailer 3
-
£1,442 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£1,442 GBP
View
B+
Retailer 5
-
£1,508 GBP
View
B+
Retailer 6
-
£1,544 GBP
View
B+
Retailer 7
-
£1,565 GBP
View
B+
Retailer 8
-
£1,664 GBP
View
B+
Retailer 9
-
£1,957 GBP
View
B
Retailer 10
-
£2,519 GBP
View
Most Expensive
B
NZ Jewellers
b91cba45-d17f-4a18-b375-324d3c8f95fa · Nov 5
£3,517 GBP
$4,707 USD
View
10 more retailers have this diamond
Prices start from £1,264 GBPSave up to £2,253 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
1.02ct Heart
£1,264 GBP