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Round|Natural|GIA

1.09ct F I1 Round Natural Diamond

EX • F/I1 • GIA 2558829087

Certificate GIA 2558829087

Diamond specifications and retailer prices

From £1,504 GBP
$2,018 USD
As of November 1, 2026
Save £1,944 GBP (56%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,448 GBP at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.09ct natural round diamond

This 1.09ct natural round sits in the classic one-carat band, graded F colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 2558829087. Listed at 8 retailers as of November 1, 2026, with prices from £1,504 to £3,448, a £1,944 spread on the same certified stone. NZ Jewellers lists it at £3,448. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
F
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2558829087
Dimensions6.55 × 6.57 × 4.08 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.55 mm6.57 mm1.09 ctF / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558829087
Side View
Table 59.0%Crown 36°GirdlePavilion 40.8°Culet: NoneDepth 62.1%

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 1
Current: £3,448 GBP|Low: £1,504 GBP|High: £3,682 GBP|Avg: £2,053 GBP|-5.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 8£1,504 GBP
Retailer 5£1,613 GBP
Retailer 3£1,649 GBP
Retailer 6£1,649 GBP
Retailer 4£1,725 GBP
Retailer 7£1,903 GBP
Retailer 2£2,050 GBP
Retailer 9£2,153 GBP
NZ Jewellers£3,448 GBP

33 data points across 9 retailers

8 retailers£1,504 GBP to £3,448 GBP

A
Cheapest Retailer
-
£1,504 GBP
$2,018 USD
B+
Retailer 2
-
£1,613 GBP
$2,165 USD
View
B+
Retailer 3
-
£1,649 GBP
$2,213 USD
View
B+
Retailer 4
-
£1,649 GBP
$2,213 USD
View
B+
Retailer 5
-
£1,725 GBP
$2,315 USD
View
B+
Retailer 6
-
£1,903 GBP
$2,554 USD
View
B
Retailer 7
-
£2,050 GBP
€2,620 EUR
View
Most Expensive
B
NZ Jewellers
399c2595-8fa6-42ae-bbbd-61fcee193ae6 · Nov 2
£3,448 GBP
$4,627 USD
View
7 more retailers have this diamond
Prices start from £1,504 GBPSave up to £1,944 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
1.09ct Round
£1,504 GBP