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Princess|Natural|GIA

0.51ct H SI1 Princess Natural Diamond

GD • H/SI1 • GIA 3565243370

Certificate GIA 3565243370

Diamond specifications and retailer prices

From £366 GBP
As of November 4, 2026
Save £93 GBP (20%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £458 GBP at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

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 3565243370. Listed at 3 retailers as of November 4, 2026, with prices from £366 to £458, a £93 spread on the same certified stone. 77 Diamonds lists it at £458. 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 3565243370
Dimensions4.45 × 4.33 × 3.15 mm
L/W Ratio1.03
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
4.45 mm4.33 mm0.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3565243370
Side View
Table 70.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 72.7%

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: £458 GBP|Low: £308 GBP|High: £463 GBP|Avg: £395 GBP|+3.2%
77 Diamonds
Retailer 2
Retailer 3
November 5, 2026
Retailer 3£366 GBP
Retailer 2£375 GBP
77 Diamonds£458 GBP

40 data points across 3 retailers

3 retailers£366 GBP to £458 GBP

B+
Cheapest Retailer
-
£366 GBP
Final sale: no returns
Retailer 2
-
£375 GBP
View
Price last confirmed 19 days ago
Most Expensive
B
77 Diamonds
PRICPXX7UZJHK · Nov 5
£458 GBP
View
2 more retailers have this diamond
Prices start from £366 GBPSave up to £93 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
£366 GBP