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Round|Natural|GIA

1.00ct I IF Round Natural Diamond

EX • I/IF • GIA 6401630896

Certificate GIA 6401630896

Diamond specifications and retailer prices

From £1,697 GBP
As of November 4, 2026
Save £2,273 GBP (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,970 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 I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6401630896. Listed at 20 retailers as of November 4, 2026, with prices from £1,697 to £3,970, a £2,273 spread on the same certified stone. NZ Jewellers lists it at £3,970. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
I
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6401630896
Dimensions6.41 × 6.38 × 3.89 mm
L/W Ratio1.00
Top View
6.41 mm6.38 mm1.00 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6401630896
Side View
Table 61.0%CrownGirdle: ThickPavilionCulet: NoneDepth 60.9%

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: £2,342 GBP|Low: £1,697 GBP|High: £3,856 GBP|Avg: £2,421 GBP|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 12£1,697 GBP
Retailer 6£1,711 GBP
Retailer 7£2,063 GBP
Retailer 3£2,102 GBP
Retailer 9£2,130 GBP
Retailer 2£2,219 GBP
Retailer 1£2,342 GBP
Retailer 4£2,433 GBP
Retailer 10£2,498 GBP
Retailer 5£2,601 GBP
Retailer 11£2,800 GBP
Retailer 8£3,810 GBP

37 data points across 12 retailers

20 retailers£1,697 GBP to £3,970 GBP

A
Cheapest Retailer
-
£1,697 GBP
A
Retailer 2
-
£1,711 GBP
View
A
Retailer 3
-
£2,040 GBP
View
A
Retailer 4
-
£2,063 GBP
View
A
Retailer 5
-
£2,102 GBP
View
Final sale: no returns
A
Retailer 6
-
£2,130 GBP
View
A
Retailer 7
-
£2,219 GBP
View
A
Retailer 8
-
£2,279 GBP
View
A
Retailer 9
-
£2,279 GBP
View
A
Retailer 10
-
£2,342 GBP
View
Retailer 11
-
£2,362 GBP
View
Price last confirmed 9 days ago
A
Retailer 12
-
£2,366 GBP
View
Retailer 13
-
£2,433 GBP
View
Price last confirmed 29 days ago
A
Retailer 14
-
£2,498 GBP
View
A
Retailer 15
-
£2,562 GBP
View
A
Retailer 16
-
£2,601 GBP
View
A
Retailer 17
-
£2,629 GBP
View
A
Retailer 18
-
£2,800 GBP
View
B+
Retailer 19
-
£3,810 GBP
View
Most Expensive
B
NZ Jewellers
0844a118-9c39-4725-ad46-3cbc2e120629 · Nov 5
£3,970 GBP
$5,359 USD
View
19 more retailers have this diamond
Prices start from £1,697 GBPSave up to £2,273 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
1.00ct Round
£1,697 GBP