Princess|Natural|GIA

0.51ct H SI1 Princess Natural Diamond

GD • H/SI1 • GIA 2566272905

Certificate GIA 2566272905

Diamond specifications and retailer prices

From €305 EUR
As of November 4, 2026
Save €374 EUR (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,012 EUR 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 2566272905. Listed at 15 retailers as of November 4, 2026, with a 123% 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566272905
Dimensions4.27 × 4.26 × 3.16 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
4.27 mm4.26 mm0.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566272905
Side View
Table 71.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 74.1%

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 4
Current: €1,012 EUR|Low: €305 EUR|High: €1,679 EUR|Avg: €640 EUR
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 4€305 EUR
Retailer 2€323 EUR
Retailer 6€535 EUR
Retailer 8€542 EUR
Retailer 11€549 EUR
Retailer 12€554 EUR
Retailer 3€567 EUR
Retailer 5€616 EUR
Retailer 13€619 EUR
Retailer 7€655 EUR
Retailer 9€679 EUR
MOH London€1,012 EUR
Retailer 10€1,679 EUR

7 data points across 13 retailers

15 retailers€305 EUR to €679 EUR

A
Cheapest Retailer
-
€305 EUR
Final sale: no returns
A
Retailer 2
-
€323 EUR
View
B+
Retailer 3
-
€401 EUR
View
B+
Retailer 4
-
€445 EUR
View
B
Retailer 5
-
€535 EUR
View
B
Retailer 6
-
€542 EUR
View
B
Retailer 7
-
€549 EUR
View
B
Retailer 8
-
€554 EUR
View
B
Retailer 9
-
€567 EUR
View
B
Retailer 10
-
€616 EUR
View
B
Retailer 11
-
€619 EUR
View
B
Retailer 12
-
€655 EUR
View
B
Retailer 13
-
€679 EUR
View
Most Expensive
MOH London
65D48ADDD · Nov 2
€1,012 EUR
£894 GBP
View
Price under review
13 more retailers have this diamond
Prices start from €305 EURSave up to €374 EUR

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 Princess
€305 EUR