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Princess|Natural|GIA

0.51ct H SI1 Princess Natural Diamond

GD • H/SI1 • GIA 1563662165

Certificate GIA 1563662165

Diamond specifications and retailer prices

From £383 GBP
As of November 4, 2026
Save £257 GBP (40%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £960 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 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 1563662165. Listed at 14 retailers as of November 4, 2026, with a 67% 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
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1563662165
Dimensions4.40 × 4.19 × 3.23 mm
L/W Ratio1.05
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
4.40 mm4.19 mm0.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceStrong
CertificateGIA 1563662165
Side View
Table 60.0%CrownGirdle: Very ThickPavilionCulet: NDepth 62.0%

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 4
Current: £960 GBP|Low: £383 GBP|High: £1,303 GBP|Avg: £583 GBP|-0.6%
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
November 6, 2026
Retailer 11£383 GBP
Retailer 9£415 GBP
Retailer 13£447 GBP
Retailer 6£447 GBP
Retailer 12£478 GBP
Retailer 14£478 GBP
Retailer 2£506 GBP
Retailer 3£519 GBP
Retailer 4£522 GBP
Retailer 5£561 GBP
Retailer 7£612 GBP
Retailer 10£640 GBP
MOH London£960 GBP
Retailer 8£1,301 GBP

9 data points across 14 retailers

14 retailers£383 GBP to £640 GBP

B+
Cheapest Retailer
-
£383 GBP
Final sale: no returns
B
Retailer 2
-
£415 GBP
View
B
Retailer 3
-
£447 GBP
View
Retailer 4
-
£447 GBP
View
Price last confirmed 8 days ago
B
Retailer 5
-
£478 GBP
View
B
Retailer 6
-
£478 GBP
View
B
Retailer 7
-
£506 GBP
View
B
Retailer 8
-
£519 GBP
View
B
Retailer 9
-
£522 GBP
View
C
Retailer 10
-
£561 GBP
View
C
Retailer 11
-
£612 GBP
View
C
Retailer 12
-
£640 GBP
View
Most Expensive
MOH London
CA0F46325 · Nov 2
£960 GBP
View
Price under review
12 more retailers have this diamond
Prices start from £383 GBPSave up to £257 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
£383 GBP