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Princess|Natural|GIA

0.50ct E SI1 Princess Natural Diamond

EX • E/SI1 • GIA 6555388157

Certificate GIA 6555388157

Diamond specifications and retailer prices

From £357 GBP
As of November 4, 2026
Save £113 GBP (24%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £470 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 0.5ct natural princess diamond

This 0.5ct natural princess sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555388157. Listed at 5 retailers as of November 4, 2026, with prices from £357 to £470, a £113 spread on the same certified stone. Blue Nile lists it at £470. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555388157
Dimensions4.37 × 4.29 × 3.11 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
4.37 mm4.29 mm0.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555388157
Side View
Table 71.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 72.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £470 GBP|Low: £325 GBP|High: £512 GBP|Avg: £414 GBP|-8.1%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 5£357 GBP
Retailer 3£366 GBP
Retailer 4£399 GBP
Retailer 2£459 GBP
Blue Nile£470 GBP

40 data points across 5 retailers

5 retailers£357 GBP to £470 GBP

A
Cheapest Retailer
-
£357 GBP
A
Retailer 2
-
£366 GBP
View
Final sale: no returns
A
Retailer 3
-
£399 GBP
View
B+
Retailer 4
-
£459 GBP
View
Most Expensive
B+
Blue Nile
29258403 · Nov 5
£470 GBP
$633 USD
View
4 more retailers have this diamond
Prices start from £357 GBPSave up to £113 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.

A
0.50ct Princess
£357 GBP