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Princess|Natural|GIA

0.51ct H SI1 Princess Natural Diamond

GD • H/SI1 • GIA 5476181215

Certificate GIA 5476181215

Diamond specifications and retailer prices

From £575 GBP
As of November 5, 2026
Save £235 GBP (29%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,027 GBP at MOH London · As of November 4, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5476181215. Listed at 16 retailers as of November 5, 2026, with a 41% 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5476181215
Dimensions4.43 × 4.38 × 3.15 mm
L/W Ratio1.01
Top View
4.43 mm4.38 mm0.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5476181215
Side View
Table 71.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 72.0%

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 5
Current: £1,027 GBP|Low: £572 GBP|High: £1,802 GBP|Avg: £824 GBP|-0.1%
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
November 6, 2026
Retailer 10£572 GBP
Retailer 8£575 GBP
Retailer 13£583 GBP
Retailer 3£597 GBP
Retailer 4£663 GBP
Retailer 6£683 GBP
Retailer 12£697 GBP
Retailer 9£719 GBP
Retailer 2£809 GBP
Retailer 11£864 GBP
Retailer 7£887 GBP
MOH London£1,027 GBP
Retailer 5£1,802 GBP

45 data points across 13 retailers

16 retailers£575 GBP to £809 GBP

Retailer 1
-
£572 GBP
Price last confirmed 19 days ago
Retailer 2
-
£575 GBP
View
Price last confirmed 8 days ago
B
Retailer 3
-
£575 GBP
View
B
Retailer 4
-
£575 GBP
View
B
Retailer 5
-
£583 GBP
View
B
Retailer 6
-
£597 GBP
View
B
Retailer 7
-
£663 GBP
View
B
Retailer 8
-
£663 GBP
View
B
Retailer 9
-
£673 GBP
View
B
Retailer 10
-
£683 GBP
View
B
Retailer 11
-
£719 GBP
View
B
Retailer 12
-
£809 GBP
View
Retailer 13
-
£864 GBP
View
Price under review
Retailer 14
-
£887 GBP
View
Price under review
Most Expensive
MOH London
DAD65A71D · Nov 4
£1,027 GBP
View
Price under review
14 more retailers have this diamond
Prices start from £575 GBPSave up to £235 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
£575 GBP