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Radiant|Natural|GIA

0.51ct H VS1 Radiant Natural Diamond

VG • H/VS1 • GIA 6551315215

Certificate GIA 6551315215

Diamond specifications and retailer prices

From £381 GBP
As of November 5, 2026
Save £288 GBP (43%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £669 GBP at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551315215. Listed at 9 retailers as of November 5, 2026, with prices from £381 to £669, a £288 spread on the same certified stone. Frank Darling lists it at £669. 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
H
Colour
VS1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551315215
Dimensions5.17 × 4.08 × 2.79 mm
L/W Ratio1.27
Culet sizeNone
Top View
5.17 mm4.08 mm0.51 ctH / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551315215
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £669 GBP|Low: £368 GBP|High: £842 GBP|Avg: £523 GBP|+0.5%
Frank Darling
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 6, 2026
Retailer 9£381 GBP
Retailer 12£383 GBP
Retailer 2£400 GBP
Retailer 13£417 GBP
Retailer 7£493 GBP
Retailer 11£493 GBP
Retailer 10£497 GBP
Retailer 4£504 GBP
Retailer 8£508 GBP
Retailer 6£581 GBP
Retailer 5£597 GBP
Frank Darling£669 GBP
Retailer 3£842 GBP

15 data points across 13 retailers

9 retailers£381 GBP to £669 GBP

A
Cheapest Retailer
-
£381 GBP
A
Retailer 2
-
£383 GBP
View
A
Retailer 3
-
£400 GBP
View
B+
Retailer 4
-
£493 GBP
View
B+
Retailer 5
-
£493 GBP
View
B+
Retailer 6
-
£497 GBP
View
B+
Retailer 7
-
£508 GBP
View
B+
Retailer 8
-
£581 GBP
View
Most Expensive
B
Frank Darling
NY2645265HK · Nov 6
£669 GBP
$895 USD
View
8 more retailers have this diamond
Prices start from £381 GBPSave up to £288 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.

A
0.51ct Radiant
£381 GBP