CaratHunter
Plans
Round|Natural|IGI

1.03ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 530289660

Shape and cutting style on the report: Round brilliant

Certificate IGI 530289660

Diamond specifications and retailer prices

From £863 GBP
As of November 4, 2026
Save £1,418 GBP (62%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,281 GBP at NZ Jewellers · As of November 5, 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 IGI 530289660. Listed at 11 retailers as of November 4, 2026, with prices from £863 to £2,281, a £1,418 spread on the same certified stone. NZ Jewellers lists it at £2,281. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle36.1°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 530289660
Dimensions6.33 × 6.38 × 4.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
6.33 mm6.38 mm1.03 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 530289660
Side View
Table 59.5%Crown 36.1°Girdle: UNDPavilion 41.2°Culet: NoneDepth 63.4%

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: £2,281 GBP|Low: £719 GBP|High: £2,496 GBP|Avg: £1,169 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
Retailer 14
November 5, 2026
Retailer 11£863 GBP
Retailer 6£895 GBP
Retailer 3£935 GBP
Retailer 14£935 GBP
Retailer 12£971 GBP
Retailer 4£988 GBP
Retailer 13£993 GBP
Retailer 10£1,035 GBP
Retailer 9£1,079 GBP
Retailer 5£1,112 GBP
Retailer 2£1,231 GBP
Retailer 7£1,325 GBP
Retailer 8£1,707 GBP
NZ Jewellers£2,281 GBP

29 data points across 14 retailers

11 retailers£863 GBP to £2,281 GBP

A
Cheapest Retailer
-
£863 GBP
Final sale: no returns
A
Retailer 2
-
£935 GBP
View
Retailer 3
-
£935 GBP
View
Price last confirmed 8 days ago
A
Retailer 4
-
£971 GBP
View
B+
Retailer 5
-
£993 GBP
View
A
Retailer 6
-
£1,035 GBP
View
A
Retailer 7
-
£1,079 GBP
View
A
Retailer 8
-
£1,231 GBP
View
B+
Retailer 9
-
£1,325 GBP
View
B+
Retailer 10
-
£1,707 GBP
View
Most Expensive
B
NZ Jewellers
775f44b5-3c46-4a1b-9b70-505a2bea8f94 · Nov 5
£2,281 GBP
$3,070 USD
View
10 more retailers have this diamond
Prices start from £863 GBPSave up to £1,418 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
£863 GBP