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Heart|Natural|GIA

1.03ct G SI2 Heart Natural Diamond

ID • G/SI2 • GIA 6555384774

Certificate GIA 6555384774

Diamond specifications and retailer prices

From £1,155 GBP
As of November 6, 2026
Save £1,613 GBP (58%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,281 GBP at NZ Jewellers · As of October 21, 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 6555384774. Listed at 13 retailers as of November 4, 2026, with a 140% 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
G
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555384774
Dimensions6.89 × 6.01 × 4.07 mm
L/W Ratio1.15
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Needle
Top View
6.89 mm6.01 mm1.03 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555384774
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.1%

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: £3,281 GBP|Low: £1,094 GBP|High: £3,281 GBP|Avg: £1,894 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6£1,155 GBP
Retailer 3£1,313 GBP
Retailer 11£1,422 GBP
Retailer 2£1,558 GBP
Retailer 10£1,641 GBP
Retailer 7£1,674 GBP
Retailer 8£1,674 GBP
Retailer 9£1,726 GBP
Retailer 4£2,152 GBP
Retailer 5£2,768 GBP
NZ Jewellers£3,281 GBP

38 data points across 11 retailers

13 retailers£1,155 GBP to £2,768 GBP

A
Cheapest Retailer
-
£1,155 GBP
A
Retailer 2
-
£1,246 GBP
View
Retailer 3
-
£1,422 GBP
View
Price last confirmed 18 days ago
Retailer 4
-
£1,487 GBP
View
Price last confirmed 22 days ago
B+
Retailer 5
-
£1,494 GBP
View
B+
Retailer 6
-
£1,558 GBP
View
Retailer 7
-
£1,641 GBP
View
Price last confirmed 17 days ago
B+
Retailer 8
-
£1,674 GBP
View
B+
Retailer 9
-
£1,674 GBP
View
B+
Retailer 10
-
£1,726 GBP
View
B+
Retailer 11
-
£2,152 GBP
View
B
Retailer 12
-
£2,768 GBP
View
Most Expensive
NZ Jewellers
d1aa92de-95f3-4a83-b48e-c623e9fa1139 · Oct 21
£3,281 GBP
$4,392 USD
View
Price last confirmed 17 days ago
12 more retailers have this diamond
Prices start from £1,155 GBPSave up to £1,613 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
£1,155 GBP