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Oval|Natural|GIA

3.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 1539949966

Certificate GIA 1539949966

Diamond specifications and retailer prices

From £35,074 GBP
CA$65,271 CAD
As of October 30, 2026
Save £22,836 GBP (39%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £57,910 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 3.51ct natural oval diamond

This 3.51ct natural oval sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1539949966. Listed at 9 retailers as of October 30, 2026, with prices from £35,074 to £57,910, a £22,836 spread on the same certified stone. MOH London lists it at £57,910. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1539949966
Dimensions11.83 × 8.46 × 5.33 mm
L/W Ratio1.40
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
11.83 mm8.46 mm3.51 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1539949966
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.0%

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: Oct 30
Current: £57,910 GBP|Low: £24,652 GBP|High: £58,220 GBP|Avg: £36,971 GBP|+5.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 16
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Retailer 20
November 1, 2026
Retailer 12£24,652 GBP
Retailer 6£31,502 GBP
Retailer 18£31,763 GBP
Retailer 3£32,540 GBP
Retailer 10£32,811 GBP
Retailer 8£33,192 GBP
Retailer 7£33,311 GBP
Retailer 9£34,721 GBP
Retailer 17£35,074 GBP
Retailer 4£35,180 GBP
Retailer 11£37,376 GBP
Retailer 2£37,766 GBP
Retailer 19£38,112 GBP
Retailer 15£38,625 GBP
Retailer 14£39,334 GBP
Retailer 20£39,578 GBP
Retailer 16£42,359 GBP
Retailer 13£43,859 GBP
Retailer 5£45,035 GBP
MOH London£57,910 GBP

13 data points across 20 retailers

9 retailers£35,074 GBP to £57,910 GBP

B+
Cheapest Retailer
-
£35,074 GBP
CA$65,271 CAD
B+
Retailer 2
-
£37,766 GBP
View
Retailer 3
-
£38,112 GBP
$51,066 USD
View
Price last confirmed 40 days ago
B
Retailer 4
-
£38,625 GBP
$51,753 USD
View
B
Retailer 5
-
£39,334 GBP
$52,703 USD
View
Retailer 6
-
£39,578 GBP
$53,030 USD
View
Price last confirmed 40 days ago
B
Retailer 7
-
£42,359 GBP
$56,757 USD
View
B
Retailer 8
-
£43,859 GBP
€55,968 EUR
View
Most Expensive
B
MOH London
4CA951700 · Nov 1
£57,910 GBP
View
8 more retailers have this diamond
Prices start from £35,074 GBPSave up to £22,836 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+
3.51ct Oval
£35,074 GBP