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Round|Natural|IGI

1.03ct K IF Round Natural Diamond

EX • K/IF • IGI 851622813

Certificate IGI 851622813

Diamond specifications and retailer prices

From £1,211 GBP
As of November 5, 2026
Save £2,103 GBP (63%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,314 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 K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 851622813. Listed at 13 retailers as of November 5, 2026, with prices from £1,211 to £3,314, a £2,103 spread on the same certified stone. NZ Jewellers lists it at £3,314. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 851622813
Dimensions6.35 × 6.41 × 3.99 mm
L/W Ratio1.01
Top View
6.35 mm6.41 mm1.03 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 851622813
Side View
Table 60.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.4%

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 5
Current: £3,314 GBP|Low: £1,411 GBP|High: £3,314 GBP|Avg: £1,810 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
November 6, 2026
Retailer 2£1,412 GBP
Retailer 4£1,481 GBP
Retailer 6£1,565 GBP
Retailer 11£1,586 GBP
Retailer 5£1,601 GBP
Retailer 3£1,664 GBP
Retailer 7£1,755 GBP
Retailer 8£1,829 GBP
Retailer 10£1,941 GBP
Retailer 9£2,008 GBP
Retailer 12£2,330 GBP
NZ Jewellers£3,314 GBP

8 data points across 12 retailers

13 retailers£1,211 GBP to £3,314 GBP

A
Cheapest Retailer
-
£1,211 GBP
A
Retailer 2
-
£1,412 GBP
View
A
Retailer 3
-
£1,481 GBP
View
A
Retailer 4
-
£1,565 GBP
View
A
Retailer 5
-
£1,586 GBP
View
A
Retailer 6
-
£1,601 GBP
View
A
Retailer 7
-
£1,664 GBP
View
A
Retailer 8
-
£1,755 GBP
View
A
Retailer 9
-
£1,829 GBP
View
A
Retailer 10
-
£1,941 GBP
View
A
Retailer 11
-
£2,008 GBP
View
B+
Retailer 12
-
£2,330 GBP
View
Most Expensive
B
NZ Jewellers
f74ad5b8-36ed-42cc-963d-06f1af05cfae · Nov 5
£3,314 GBP
$4,461 USD
View
12 more retailers have this diamond
Prices start from £1,211 GBPSave up to £2,103 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
£1,211 GBP