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Round|Natural|GIA

1.03ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6552577496

Certificate GIA 6552577496

Diamond specifications and retailer prices

From £1,453 GBP
As of November 5, 2026
Save £2,584 GBP (64%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,037 GBP at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552577496. Listed at 22 retailers as of November 5, 2026, with a 178% 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6552577496
Dimensions6.41 × 6.45 × 4.03 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.41 mm6.45 mm1.03 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552577496
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.7%

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 5
Current: £4,037 GBP|Low: £1,453 GBP|High: £4,037 GBP|Avg: £2,269 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 8£1,453 GBP
Retailer 13£1,580 GBP
Retailer 10£1,750 GBP
Retailer 5£1,785 GBP
Retailer 2£1,822 GBP
Retailer 3£1,939 GBP
Retailer 11£1,939 GBP
Retailer 12£2,006 GBP
Retailer 6£2,031 GBP
Retailer 4£2,297 GBP
Retailer 7£2,392 GBP
Retailer 9£3,374 GBP
NZ Jewellers£4,037 GBP

35 data points across 13 retailers

22 retailers£1,453 GBP to £4,037 GBP

A
Cheapest Retailer
-
£1,453 GBP
A
Retailer 2
-
£1,580 GBP
View
Retailer 3
-
£1,750 GBP
View
Price last confirmed 15 days ago
Retailer 4
-
£1,750 GBP
View
Price last confirmed 36 days ago
Retailer 5
-
£1,750 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£1,785 GBP
View
A
Retailer 7
-
£1,822 GBP
View
Retailer 8
-
£1,830 GBP
View
Price last confirmed 38 days ago
B+
Retailer 9
-
£1,939 GBP
View
B+
Retailer 10
-
£1,939 GBP
View
B+
Retailer 11
-
£2,006 GBP
View
Retailer 12
-
£2,019 GBP
View
Price last confirmed 38 days ago
Retailer 13
-
£2,019 GBP
View
Price last confirmed 28 days ago
Retailer 14
-
£2,019 GBP
View
Price last confirmed 16 days ago
B+
Retailer 15
-
£2,019 GBP
View
B+
Retailer 16
-
£2,031 GBP
View
B+
Retailer 17
-
£2,392 GBP
View
B
Retailer 18
-
£3,374 GBP
View
B
Retailer 19
-
£4,037 GBP
View
Retailer 20
-
£4,037 GBP
View
Price last confirmed 39 days ago
Retailer 21
-
£4,037 GBP
View
Price last confirmed 28 days ago
Most Expensive
NZ Jewellers
09dadbfd-6c65-4e89-9670-16a0ec6b327b · Oct 20
£4,037 GBP
$5,434 USD
View
Price last confirmed 16 days ago
21 more retailers have this diamond
Prices start from £1,453 GBPSave up to £2,584 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 Round
£1,453 GBP