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Radiant|Natural|GIA

0.51ct F SI1 Radiant Natural Diamond

VG • F/SI1 • GIA 14025913

Certificate GIA 14025913

Diamond specifications and retailer prices

From £517 GBP
$694 USD
As of October 31, 2026
Save £127 GBP (20%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £644 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 14025913. Listed at 2 retailers as of October 31, 2026, with prices from £517 to £644, a £127 spread on the same certified stone. 77 Diamonds lists it at £644. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 14025913
Dimensions4.46 × 4.34 × 3.13 mm
L/W Ratio1.03
Girdle conditionFaceted
Top View
4.46 mm4.34 mm0.51 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 14025913
Side View
Table 73.0%CrownGirdle: VTN-STKPavilionCuletDepth 72.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: £644 GBP|Low: £517 GBP|High: £646 GBP|Avg: £582 GBP|+2.2%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 2£517 GBP
Retailer 3£588 GBP
77 Diamonds£644 GBP

37 data points across 3 retailers

2 retailers£517 GBP to £644 GBP

B+
Cheapest Retailer
-
£517 GBP
$694 USD
Most Expensive
B
77 Diamonds
RADZBRMJBFBZ · Nov 2
£644 GBP
View
1 more retailer has this diamond
Prices start from £517 GBPSave up to £127 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
£517 GBP