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Round|Natural|GIA

2.09ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 3555120527

Certificate GIA 3555120527

Diamond specifications and retailer prices

From £12,563 GBP
CA$23,379 CAD
As of October 30, 2026
Save £8,139 GBP (39%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £20,702 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 2.09ct natural round diamond

This 2.09ct natural round sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3555120527. Listed at 13 retailers as of October 30, 2026, with prices from £12,563 to £20,702, a £8,139 spread on the same certified stone. MOH London lists it at £20,702. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.09
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 3555120527
Dimensions8.10 × 8.17 × 5.10 mm
L/W Ratio1.01
Top View
8.10 mm8.17 mm2.09 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555120527
Side View
Table 58.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.7%

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: Oct 30
Current: £20,702 GBP|Low: £12,563 GBP|High: £22,802 GBP|Avg: £16,236 GBP|-8.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 7£12,563 GBP
Retailer 13£12,641 GBP
Retailer 2£13,713 GBP
Retailer 8£13,968 GBP
Retailer 10£13,968 GBP
Retailer 3£14,315 GBP
Retailer 4£14,770 GBP
Retailer 9£14,770 GBP
Retailer 12£15,262 GBP
Retailer 11£15,579 GBP
Retailer 6£16,012 GBP
Retailer 5£16,073 GBP
MOH London£20,702 GBP

39 data points across 13 retailers

13 retailers£12,563 GBP to £20,702 GBP

B+
Cheapest Retailer
-
£12,563 GBP
CA$23,379 CAD
B+
Retailer 2
-
£12,641 GBP
$16,938 USD
View
B+
Retailer 3
-
£13,713 GBP
View
B+
Retailer 4
-
£13,968 GBP
$18,715 USD
View
B+
Retailer 5
-
£13,968 GBP
$18,715 USD
View
B
Retailer 6
-
£14,315 GBP
$19,180 USD
View
B+
Retailer 7
-
£14,770 GBP
$19,790 USD
View
B+
Retailer 8
-
£14,770 GBP
$19,790 USD
View
B+
Retailer 9
-
£15,262 GBP
$20,450 USD
View
B+
Retailer 10
-
£15,579 GBP
$20,874 USD
View
B+
Retailer 11
-
£16,012 GBP
€20,433 EUR
View
B
Retailer 12
-
£16,073 GBP
$21,536 USD
View
Most Expensive
B
MOH London
1C8383581 · Nov 1
£20,702 GBP
View
12 more retailers have this diamond
Prices start from £12,563 GBPSave up to £8,139 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+
2.09ct Round
£12,563 GBP