Round|Natural|IGI

1.03ct J VS1 Round Natural Diamond

EX • J/VS1 • IGI 685562885

Shape and cutting style on the report: Round brilliant

Certificate IGI 685562885

Diamond specifications and retailer prices

From £1,143 GBP
As of November 5, 2026
Save £1,401 GBP (55%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £3,551 GBP at NZ Jewellers · As of October 23, 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 J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 685562885. Listed at 26 retailers as of November 4, 2026, with a 123% 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
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 685562885
Dimensions6.39 × 6.37 × 4.05 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
6.39 mm6.37 mm1.03 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 685562885
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.5%

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: £1,589 GBP|Low: £1,143 GBP|High: £2,805 GBP|Avg: £1,615 GBP|-4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 8£1,143 GBP
Retailer 2£1,296 GBP
Retailer 13£1,315 GBP
Retailer 14£1,343 GBP
Retailer 5£1,423 GBP
Retailer 4£1,456 GBP
Retailer 6£1,462 GBP
Retailer 3£1,486 GBP
Retailer 12£1,486 GBP
Retailer 1£1,589 GBP
Retailer 7£1,684 GBP
Retailer 9£1,776 GBP
Retailer 11£1,936 GBP
Retailer 10£2,543 GBP

28 data points across 14 retailers

26 retailers£1,143 GBP to £2,543 GBP

A
Cheapest Retailer
-
£1,143 GBP
A
Retailer 2
-
£1,315 GBP
View
A
Retailer 3
-
£1,343 GBP
View
Final sale: no returns
Retailer 4
-
£1,384 GBP
View
Price last confirmed 12 days ago
Retailer 5
-
£1,423 GBP
View
Price last confirmed 30 days ago
Retailer 6
-
£1,448 GBP
View
Price last confirmed 12 days ago
Retailer 7
-
£1,456 GBP
View
Price last confirmed 8 days ago
Retailer 8
-
£1,456 GBP
View
Price last confirmed 15 days ago
A
Retailer 9
-
£1,456 GBP
View
A
Retailer 10
-
£1,486 GBP
View
Retailer 11
-
£1,486 GBP
View
Price last confirmed 11 days ago
A
Retailer 12
-
£1,523 GBP
View
Retailer 13
-
£1,528 GBP
View
Price last confirmed 29 days ago
Retailer 14
-
£1,528 GBP
View
Price last confirmed 25 days ago
A
Retailer 15
-
£1,589 GBP
View
Retailer 16
-
£1,599 GBP
View
Price last confirmed 50 days ago
B+
Retailer 17
-
£1,684 GBP
View
Retailer 18
-
£1,762 GBP
View
Price last confirmed 33 days ago
B+
Retailer 19
-
£1,776 GBP
View
Retailer 20
-
£1,845 GBP
View
Price last confirmed 45 days ago
B+
Retailer 21
-
£1,936 GBP
View
B
Retailer 22
-
£2,543 GBP
View
Retailer 23
-
£3,193 GBP
View
Price last confirmed 34 days ago
Retailer 24
-
£3,193 GBP
View
Price last confirmed 26 days ago
Retailer 25
-
£3,343 GBP
View
Price last confirmed 48 days ago
Most Expensive
NZ Jewellers
3c37d77d-2761-448a-a8d4-fc231bb05bb7 · Oct 23
£3,551 GBP
$4,779 USD
View
Price last confirmed 13 days ago
25 more retailers have this diamond
Prices start from £1,143 GBPSave up to £1,401 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
£1,143 GBP