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Round|Natural|IGI

1.03ct F VS1 Round Natural Diamond

EX • F/VS1 • IGI 816642433

Shape and cutting style on the report: Round brilliant

Certificate IGI 816642433

Diamond specifications and retailer prices

From £2,302 GBP
As of November 2, 2026
Save £2,778 GBP (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £5,080 GBP at NZ Jewellers · As of September 21, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 816642433. Listed at 18 retailers as of November 2, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 816642433
Dimensions6.45 × 6.49 × 4.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.45 mm6.49 mm1.03 ctF / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 816642433
Side View
Table 58.0%Crown 35°Girdle: MediumPavilion 41.4°CuletDepth 62.2%

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 2
Current: £2,731 GBP|Low: £2,297 GBP|High: £4,928 GBP|Avg: £3,085 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 7£2,302 GBP
Retailer 10£2,566 GBP
Retailer 9£2,690 GBP
Retailer 1£2,731 GBP
Retailer 2£2,787 GBP
Retailer 4£2,981 GBP
Retailer 6£3,354 GBP
Retailer 8£3,366 GBP
Retailer 5£3,558 GBP
Retailer 3£4,850 GBP

31 data points across 10 retailers

18 retailers£2,302 GBP to £5,080 GBP

A
Cheapest Retailer
-
£2,302 GBP
A
Retailer 2
-
£2,495 GBP
View
A
Retailer 3
-
£2,566 GBP
View
A
Retailer 4
-
£2,690 GBP
View
Final sale: no returns
A
Retailer 5
-
£2,731 GBP
View
A
Retailer 6
-
£2,787 GBP
View
Retailer 7
-
£2,916 GBP
View
Price last confirmed 51 days ago
A
Retailer 8
-
£2,916 GBP
View
A
Retailer 9
-
£2,916 GBP
View
Retailer 10
-
£2,916 GBP
View
Price last confirmed 9 days ago
A
Retailer 11
-
£2,981 GBP
View
B+
Retailer 12
-
£3,354 GBP
View
Retailer 13
-
£3,364 GBP
View
Price last confirmed 46 days ago
B+
Retailer 14
-
£3,364 GBP
View
B+
Retailer 15
-
£3,558 GBP
View
B
Retailer 16
-
£4,850 GBP
View
B
Retailer 17
-
£5,080 GBP
View
Most Expensive
NZ Jewellers
71e2a8a3-f5ed-46f4-b1d1-ac643312a9cd · Sep 21
£5,080 GBP
$6,799 USD
View
Price last confirmed 46 days ago
17 more retailers have this diamond
Prices start from £2,302 GBPSave up to £2,778 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
£2,302 GBP