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Radiant|Natural|GIA

1.23ct F I1 Radiant Natural Diamond

VG • F/I1 • GIA 6511045219

Certificate GIA 6511045219

Diamond specifications and retailer prices

From £2,103 GBP
$2,822 USD
As of November 1, 2026
Save £1,989 GBP (49%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £4,092 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.23ct natural radiant diamond

This 1.23ct natural radiant sits in the classic one-carat band, graded F colour (colourless) and I1 clarity (included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6511045219. Listed at 6 retailers as of November 1, 2026, with prices from £2,103 to £4,092, a £1,989 spread on the same certified stone. NZ Jewellers lists it at £4,092. 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

1.23
Carat
F
Colour
I1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6511045219
Dimensions7.36 × 5.12 × 3.75 mm
L/W Ratio1.44
Top View
7.36 mm5.12 mm1.23 ctF / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6511045219
Side View
Table 72.0%CrownGirdlePavilionCulet: NoneDepth 73.2%

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: Nov 1
Current: £4,092 GBP|Low: £2,103 GBP|High: £4,430 GBP|Avg: £2,807 GBP|-7.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5£2,103 GBP
Retailer 7£2,330 GBP
Retailer 3£2,349 GBP
Retailer 4£2,349 GBP
Retailer 6£2,710 GBP
Retailer 2£2,750 GBP
NZ Jewellers£4,092 GBP

17 data points across 7 retailers

6 retailers£2,103 GBP to £4,092 GBP

B+
Cheapest Retailer
-
£2,103 GBP
$2,822 USD
B
Retailer 2
-
£2,349 GBP
$3,152 USD
View
B
Retailer 3
-
£2,349 GBP
$3,152 USD
View
B
Retailer 4
-
£2,710 GBP
$3,637 USD
View
B
Retailer 5
-
£2,750 GBP
€3,514 EUR
View
Most Expensive
C
NZ Jewellers
538cd95a-e181-45ca-a731-2843d17567a4 · Nov 3
£4,092 GBP
$5,491 USD
View
5 more retailers have this diamond
Prices start from £2,103 GBPSave up to £1,989 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+
1.23ct Radiant
£2,103 GBP