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Marquise|Natural|GIA

3.51ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 5566452292

Certificate GIA 5566452292

Diamond specifications and retailer prices

From £30,675 GBP
HK$321,100 HKD
As of October 30, 2026
Save £24,727 GBP (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £55,402 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 3.51ct natural marquise diamond

This 3.51ct natural marquise sits in the three to five carat band, graded E 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 5566452292. Listed at 11 retailers as of October 26, 2026, with prices from £30,675 to £55,402, a £24,727 spread on the same certified stone. MOH London lists it at £55,402. 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

3.51
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5566452292
Dimensions15.01 × 7.89 × 4.80 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Indented Natural, Natural
Top View
15.01 mm7.89 mm3.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5566452292
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.9%

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: Oct 30
Current: £55,402 GBP|Low: £30,675 GBP|High: £65,536 GBP|Avg: £39,770 GBP|-6.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 6£30,675 GBP
Retailer 4£32,951 GBP
Retailer 5£33,764 GBP
Retailer 10£35,907 GBP
Retailer 2£36,078 GBP
Retailer 8£37,128 GBP
Retailer 7£38,672 GBP
Retailer 9£39,656 GBP
Retailer 3£42,985 GBP
MOH London£55,402 GBP

30 data points across 10 retailers

11 retailers£30,675 GBP to £55,402 GBP

A
Cheapest Retailer
-
£30,675 GBP
HK$321,100 HKD
A
Retailer 2
-
£32,951 GBP
₹4,204,810 INR
View
A
Retailer 3
-
£33,764 GBP
$45,240 USD
View
Retailer 4
-
£35,907 GBP
SGD 65,016 SGD
View
Price last confirmed 21 days ago
A
Retailer 5
-
£36,078 GBP
View
A
Retailer 6
-
£36,158 GBP
A$74,536 AUD
View
A
Retailer 7
-
£37,128 GBP
$49,748 USD
View
Final sale: no returns
A
Retailer 8
-
£38,672 GBP
$51,816 USD
View
A
Retailer 9
-
£39,656 GBP
$53,135 USD
View
B+
Retailer 10
-
£42,985 GBP
€54,853 EUR
View
Most Expensive
B+
MOH London
C0F60412A · Oct 26
£55,402 GBP
View
10 more retailers have this diamond
Prices start from £30,675 GBPSave up to £24,727 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
3.51ct Marquise
£30,675 GBP