Radiant|Natural|GIA

0.51ct F I1 Radiant Natural Diamond

F/I1 • GIA 5446318793

Certificate GIA 5446318793

Diamond specifications and retailer prices

From £291 GBP
$390 USD
As of November 1, 2026
Save £823 GBP (74%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,113 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 5446318793. Listed at 6 retailers as of October 30, 2026, with prices from £291 to £1,113, a £823 spread on the same certified stone. NZ Jewellers lists it at £1,113. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5446318793
Dimensions4.74 × 4.34 × 3.05 mm
L/W Ratio1.09
Top View
4.74 mm4.34 mm0.51 ctF / I1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5446318793
Side View
Table 71.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.3%

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: £1,113 GBP|Low: £291 GBP|High: £1,113 GBP|Avg: £470 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 4£291 GBP
Retailer 6£313 GBP
Retailer 7£317 GBP
Retailer 3£324 GBP
Retailer 5£391 GBP
Retailer 8£437 GBP
Retailer 2£528 GBP
NZ Jewellers£1,113 GBP

19 data points across 8 retailers

6 retailers£291 GBP to £1,113 GBP

B+
Cheapest Retailer
-
£291 GBP
$390 USD
B+
Retailer 2
-
£313 GBP
$420 USD
View
B+
Retailer 3
-
£324 GBP
$435 USD
View
B+
Retailer 4
-
£391 GBP
$525 USD
View
B
Retailer 5
-
£528 GBP
€675 EUR
View
Most Expensive
C
NZ Jewellers
3d866903-2b58-4de4-a8e6-f78341f6ca05 · Oct 30
£1,113 GBP
$1,494 USD
View
5 more retailers have this diamond
Prices start from £291 GBPSave up to £823 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
£291 GBP