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Round|Natural|GIA

1.00ct K I1 Round Natural Diamond

EX • K/I1 • GIA 7408585960

Certificate GIA 7408585960

Diamond specifications and retailer prices

From £999 GBP
As of November 4, 2026
Save £2,280 GBP (70%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,279 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and I1 clarity (included), with a top-tier cut grade and certified by GIA 7408585960. Listed at 10 retailers as of November 4, 2026, with prices from £999 to £3,279, a £2,280 spread on the same certified stone. NZ Jewellers lists it at £3,279. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
K
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7408585960
Dimensions6.40 × 6.35 × 4.00 mm
L/W Ratio1.01
Top View
6.40 mm6.35 mm1.00 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7408585960
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £3,279 GBP|Low: £970 GBP|High: £3,279 GBP|Avg: £1,630 GBP|+1.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 4£999 GBP
Retailer 5£1,076 GBP
Retailer 11£1,225 GBP
Retailer 8£1,307 GBP
Retailer 6£1,344 GBP
Retailer 9£1,344 GBP
Retailer 7£1,406 GBP
Retailer 10£1,551 GBP
Retailer 2£1,823 GBP
Retailer 3£2,137 GBP
NZ Jewellers£3,279 GBP

21 data points across 11 retailers

10 retailers£999 GBP to £3,279 GBP

B+
Cheapest Retailer
-
£999 GBP
B+
Retailer 2
-
£1,076 GBP
View
B
Retailer 3
-
£1,225 GBP
View
B
Retailer 4
-
£1,307 GBP
View
B
Retailer 5
-
£1,344 GBP
View
Retailer 6
-
£1,344 GBP
View
Price last confirmed 8 days ago
B
Retailer 7
-
£1,406 GBP
View
B
Retailer 8
-
£1,551 GBP
View
B
Retailer 9
-
£1,823 GBP
View
Most Expensive
C
NZ Jewellers
8e3cbb2b-0106-4ca0-9f5c-09159c98046d · Nov 5
£3,279 GBP
$4,413 USD
View
9 more retailers have this diamond
Prices start from £999 GBPSave up to £2,280 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.

B+
1.00ct Round
£999 GBP