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Round|Natural|GIA

1.09ct F I1 Round Natural Diamond

GD • F/I1 • GIA 2165905387

Certificate GIA 2165905387

Diamond specifications and retailer prices

From £2,725 GBP
$3,657 USD
As of November 2, 2026
Save £1,088 GBP (29%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £3,814 GBP at Yorxs · As of November 1, 2026
View at Yorxs

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 standard cut grade and certified by GIA 2165905387. Listed at 6 retailers as of November 1, 2026, with prices from £2,725 to £3,814, a £1,088 spread on the same certified stone. Yorxs lists it at £3,814. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.09
Carat
F
Colour
I1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2165905387
Dimensions6.60 × 6.52 × 4.07 mm
L/W Ratio1.01
Star length55%
Lower girdle85%
Culet sizeNone
Top View
6.60 mm6.52 mm1.09 ctF / I1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2165905387
Side View
Table 62.0%Crown 37.5°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £2,725 GBP|Low: £2,689 GBP|High: £3,841 GBP|Avg: £3,521 GBP|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Yorxs
November 1, 2026
Retailer 1£2,725 GBP
Retailer 2£3,538 GBP
Retailer 3£3,651 GBP
Retailer 4£3,651 GBP
Retailer 5£3,778 GBP
Yorxs£3,814 GBP

23 data points across 6 retailers

6 retailers£2,725 GBP to £3,814 GBP

B
Cheapest Retailer
-
£2,725 GBP
$3,657 USD
C
Retailer 2
-
£3,538 GBP
$4,748 USD
View
C
Retailer 3
-
£3,651 GBP
$4,900 USD
View
C
Retailer 4
-
£3,651 GBP
$4,900 USD
View
C
Retailer 5
-
£3,778 GBP
$5,070 USD
View
Most Expensive
C
Yorxs
230051757 · Nov 1
£3,814 GBP
€4,874 EUR
View
5 more retailers have this diamond
Prices start from £2,725 GBPSave up to £1,088 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
1.09ct Round
£2,725 GBP