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Princess|Natural|GIA

0.51ct F SI2 Princess Natural Diamond

EX • F/SI2 • GIA 6491911833

Certificate GIA 6491911833

Diamond specifications and retailer prices

From £306 GBP
As of November 6, 2026
Save £658 GBP (68%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £964 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6491911833. Listed at 18 retailers as of November 4, 2026, with prices from £306 to £964, a £658 spread on the same certified stone. MOH London lists it at £964. 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

0.51
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6491911833
Dimensions4.49 × 4.08 × 3.19 mm
L/W Ratio1.10
Top View
4.49 mm4.08 mm0.51 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6491911833
Side View
Table 74.0%CrownGirdle: VTK-VTKPavilionCulet: NoneDepth 78.1%

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 6
Current: £964 GBP|Low: £262 GBP|High: £1,310 GBP|Avg: £516 GBP|-0.4%
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 2£306 GBP
Retailer 4£386 GBP
Retailer 14£418 GBP
Retailer 12£418 GBP
Retailer 10£436 GBP
Retailer 5£450 GBP
Retailer 13£450 GBP
Retailer 7£466 GBP
Retailer 6£483 GBP
Retailer 15£483 GBP
Retailer 9£496 GBP
Retailer 8£506 GBP
Retailer 3£524 GBP
Retailer 11£560 GBP
MOH London£964 GBP
Retailer 16£1,310 GBP

44 data points across 16 retailers

18 retailers£306 GBP to £964 GBP

A
Cheapest Retailer
-
£306 GBP
A
Retailer 2
-
£353 GBP
View
B+
Retailer 3
-
£386 GBP
View
Final sale: no returns
B+
Retailer 4
-
£418 GBP
View
B+
Retailer 5
-
£418 GBP
View
B+
Retailer 6
-
£436 GBP
View
Retailer 7
-
£450 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£450 GBP
View
B
Retailer 9
-
£483 GBP
View
B
Retailer 10
-
£483 GBP
View
B+
Retailer 11
-
£496 GBP
View
B
Retailer 12
-
£506 GBP
View
B
Retailer 13
-
£516 GBP
View
B
Retailer 14
-
£524 GBP
View
B
Retailer 15
-
£560 GBP
View
Most Expensive
B
MOH London
D9BCF3116 · Nov 4
£964 GBP
View
15 more retailers have this diamond
Prices start from £306 GBPSave up to £658 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
0.51ct Princess
£306 GBP