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Princess|Natural|GIA

0.51ct F SI1 Princess Natural Diamond

GD • F/SI1 • GIA 6432546240

Certificate GIA 6432546240

Diamond specifications and retailer prices

From £421 GBP
As of November 1, 2026
Save £445 GBP (51%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,027 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.51ct natural princess diamond

This 0.51ct natural princess sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6432546240. Listed at 17 retailers as of October 30, 2026, with a 106% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6432546240
Dimensions4.37 × 4.32 × 3.15 mm
L/W Ratio1.01
Top View
4.37 mm4.32 mm0.51 ctF / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6432546240
Side View
Table 70.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 72.8%

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: £1,027 GBP|Low: £395 GBP|High: £1,759 GBP|Avg: £675 GBP|-5.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 13£421 GBP
Retailer 7£505 GBP
Retailer 6£517 GBP
Retailer 9£561 GBP
Retailer 18£561 GBP
Retailer 4£570 GBP
Retailer 10£582 GBP
Retailer 17£642 GBP
Retailer 16£647 GBP
Retailer 3£660 GBP
Retailer 12£667 GBP
Retailer 2£688 GBP
Retailer 8£691 GBP
Retailer 5£764 GBP
Retailer 11£794 GBP
Retailer 14£865 GBP
MOH London£1,027 GBP
Retailer 15£1,759 GBP

25 data points across 18 retailers

17 retailers£421 GBP to £865 GBP

B+
Cheapest Retailer
-
£421 GBP
B
Retailer 2
-
£505 GBP
View
Retailer 3
-
£561 GBP
View
Price last confirmed 9 days ago
B
Retailer 4
-
£561 GBP
View
B
Retailer 5
-
£570 GBP
View
Retailer 6
-
£582 GBP
View
Price last confirmed 9 days ago
C
Retailer 7
-
£642 GBP
View
C
Retailer 8
-
£647 GBP
View
C
Retailer 9
-
£660 GBP
View
C
Retailer 10
-
£667 GBP
View
C
Retailer 11
-
£688 GBP
View
C
Retailer 12
-
£691 GBP
View
C
Retailer 13
-
£764 GBP
View
C
Retailer 14
-
£794 GBP
View
C
Retailer 15
-
£865 GBP
View
Most Expensive
MOH London
59595A05D · Nov 2
£1,027 GBP
View
Price under review
15 more retailers have this diamond
Prices start from £421 GBPSave up to £445 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 Princess
£421 GBP