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Radiant|Natural|GIA

0.51ct F I1 Radiant Natural Diamond

F/I1 • GIA 2191781000

Shape and cutting style on the report: Cut cornered square modified brilliant

Certificate GIA 2191781000

Diamond specifications and retailer prices

From £790 GBP
$1,060 USD
As of November 2, 2026
Save £195 GBP (20%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £985 GBP at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded F colour (colourless) and I1 clarity (included) and certified by GIA 2191781000. Listed at 5 retailers as of October 27, 2026, with prices from £790 to £985, a £195 spread on the same certified stone. Wholesale Diamonds Direct lists it at £985. 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

0.51
Carat
F
Colour
I1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2191781000
Dimensions4.57 × 4.49 × 3.10 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
4.57 mm4.49 mm0.51 ctF / I1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2191781000
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.0%

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: £905 GBP|Low: £790 GBP|High: £985 GBP|Avg: £857 GBP|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Wholesale Diamonds Direct
November 2, 2026
Retailer 3£790 GBP
Retailer 4£790 GBP
Retailer 2£820 GBP
Retailer 1£905 GBP
Wholesale Diamonds Direct£985 GBP

16 data points across 5 retailers

5 retailers£790 GBP to £985 GBP

B
Cheapest Retailer
-
£790 GBP
$1,060 USD
B
Retailer 2
-
£790 GBP
$1,060 USD
View
C
Retailer 3
-
£820 GBP
$1,100 USD
View
C
Retailer 4
-
£905 GBP
€1,157 EUR
View
Most Expensive
C
Wholesale Diamonds Direct
107650411 · Oct 27
£985 GBP
$1,322 USD
View
4 more retailers have this diamond
Prices start from £790 GBPSave up to £195 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
0.51ct Radiant
£790 GBP