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Round|Natural|GIA

1.09ct F I1 Round Natural Diamond

EX • F/I1 • GIA 2436646124

Certificate GIA 2436646124

Diamond specifications and retailer prices

From £1,103 GBP
$1,480 USD
As of November 1, 2026
Save £499 GBP (31%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,602 GBP at Jared · As of November 2, 2026
View at Jared

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 2436646124. Listed at 4 retailers as of November 1, 2026, with prices from £1,103 to £1,602, a £499 spread on the same certified stone. Jared lists it at £1,602. 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
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2436646124
Dimensions6.57 × 6.53 × 4.07 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.57 mm6.53 mm1.09 ctF / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2436646124
Side View
Table 59.0%Crown 36°Girdle: ThickPavilion 40.8°Culet: NoneDepth 62.0%

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: £1,602 GBP|Low: £951 GBP|High: £5,428 GBP|Avg: £1,710 GBP|-17.9%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 7, 2026
Retailer 2£1,103 GBP
Retailer 4£1,550 GBP
Retailer 5£1,550 GBP
Jared£1,602 GBP
Retailer 3£5,410 GBP

22 data points across 5 retailers

4 retailers£1,103 GBP to £1,602 GBP

A
Cheapest Retailer
-
£1,103 GBP
$1,480 USD
B+
Retailer 2
-
£1,550 GBP
$2,080 USD
View
B+
Retailer 3
-
£1,550 GBP
$2,080 USD
View
Most Expensive
B+
Jared
148482771 · Nov 2
£1,602 GBP
$2,150 USD
View
3 more retailers have this diamond
Prices start from £1,103 GBPSave up to £499 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
£1,103 GBP