Oval|Natural|GIA

3.51ct F SI2 Oval Natural Diamond

EX • F/SI2

Diamond specifications and retailer prices

From £29,400 GBP
$39,453 USD
As of November 2, 2026
Save £11,390 GBP (28%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £40,790 GBP at Moon Ocean · As of November 2, 2026
View at Moon Ocean

About this 3.51ct natural oval diamond

This 3.51ct natural oval sits in the three to five 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. Listed at 12 retailers as of November 2, 2026, with prices from £29,400 to £40,790, a £11,390 spread on the same certified stone. Moon Ocean lists it at £40,790. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions12.41 × 8.24 × 5.23 mm
L/W Ratio1.51
Top View
12.41 mm8.24 mm3.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 62.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 63.4%

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: Nov 2
Current: £40,790 GBP|Low: £29,125 GBP|High: £41,206 GBP|Avg: £35,166 GBP|-0.1%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 2£29,400 GBP
Retailer 4£32,015 GBP
Retailer 11£33,167 GBP
Retailer 9£33,189 GBP
Retailer 7£34,548 GBP
Retailer 10£34,548 GBP
Retailer 8£35,904 GBP
Retailer 6£35,931 GBP
Retailer 3£37,312 GBP
Retailer 5£38,666 GBP
Moon Ocean£40,790 GBP

21 data points across 11 retailers

12 retailers£29,400 GBP to £40,790 GBP

A
Cheapest Retailer
-
£29,400 GBP
$39,453 USD
Retailer 2
-
£29,960 GBP
$40,204 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
£32,015 GBP
CA$59,669 CAD
View
B+
Retailer 4
-
£33,167 GBP
$44,508 USD
View
B+
Retailer 5
-
£33,189 GBP
$44,537 USD
View
B+
Retailer 6
-
£34,548 GBP
$46,362 USD
View
B+
Retailer 7
-
£34,548 GBP
$46,362 USD
View
B+
Retailer 8
-
£35,904 GBP
$48,181 USD
View
B+
Retailer 9
-
£35,931 GBP
$48,217 USD
View
B+
Retailer 10
-
£37,312 GBP
$50,071 USD
View
B
Retailer 11
-
£38,666 GBP
$51,887 USD
View
Most Expensive
B
Moon Ocean
NVN-289FCEEE5-111 · Nov 2
£40,790 GBP
View
11 more retailers have this diamond
Prices start from £29,400 GBPSave up to £11,390 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 Oval
£29,400 GBP