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Round|Natural|GIA

1.03ct I VS1 Round Natural Diamond

EX • I/VS1 • GIA 2566190931

Certificate GIA 2566190931

Diamond specifications and retailer prices

From £1,832 GBP
As of November 4, 2026
Save £2,749 GBP (60%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,581 GBP at NZ Jewellers · As of November 2, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 2566190931. Listed at 22 retailers as of November 2, 2026, with prices from £1,832 to £4,581, a £2,749 spread on the same certified stone. NZ Jewellers lists it at £4,581. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2566190931
Dimensions6.45 × 6.41 × 4.00 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Pinpoint
Top View
6.45 mm6.41 mm1.03 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2566190931
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

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 4
Current: £2,535 GBP|Low: £1,575 GBP|High: £4,279 GBP|Avg: £2,320 GBP|+14.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 16
Retailer 17
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Retailer 19
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Retailer 21
November 4, 2026
Retailer 11£1,793 GBP
Retailer 17£1,832 GBP
Retailer 13£1,862 GBP
Retailer 8£1,927 GBP
Retailer 21£1,957 GBP
Retailer 14£2,007 GBP
Retailer 2£2,175 GBP
Retailer 20£2,175 GBP
Retailer 3£2,192 GBP
Retailer 10£2,213 GBP
Retailer 9£2,274 GBP
Retailer 4£2,289 GBP
Retailer 7£2,289 GBP
Retailer 12£2,328 GBP
Retailer 6£2,363 GBP
Retailer 15£2,427 GBP
Retailer 19£2,504 GBP
Retailer 1£2,535 GBP
Retailer 18£2,822 GBP
Retailer 5£3,189 GBP
Retailer 16£3,664 GBP

25 data points across 21 retailers

22 retailers£1,832 GBP to £4,581 GBP

A
Cheapest Retailer
-
£1,832 GBP
Final sale: no returns
Retailer 2
-
£1,862 GBP
View
Price last confirmed 37 days ago
A
Retailer 3
-
£1,927 GBP
View
A
Retailer 4
-
£1,957 GBP
View
Retailer 5
-
£2,148 GBP
View
Price last confirmed 36 days ago
A
Retailer 6
-
£2,175 GBP
View
A
Retailer 7
-
£2,175 GBP
View
A
Retailer 8
-
£2,192 GBP
View
Retailer 9
-
£2,213 GBP
View
Price last confirmed 40 days ago
Retailer 10
-
£2,274 GBP
View
Price last confirmed 36 days ago
A
Retailer 11
-
£2,289 GBP
View
A
Retailer 12
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£2,289 GBP
View
A
Retailer 13
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£2,328 GBP
View
A
Retailer 14
-
£2,363 GBP
View
A
Retailer 15
-
£2,427 GBP
View
B+
Retailer 16
-
£2,504 GBP
View
B+
Retailer 17
-
£2,535 GBP
View
B+
Retailer 18
-
£2,822 GBP
View
B
Retailer 19
-
£3,189 GBP
View
B
Retailer 20
-
£3,664 GBP
View
Retailer 21
-
£3,893 GBP
View
Price last confirmed 37 days ago
Most Expensive
B
NZ Jewellers
0f1b352d-dfe0-41f2-9507-81f68a22750f · Nov 2
£4,581 GBP
$6,184 USD
View
21 more retailers have this diamond
Prices start from £1,832 GBPSave up to £2,749 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
£1,832 GBP