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Oval|Natural|GIA

3.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 1529883125

Certificate GIA 1529883125

Diamond specifications and retailer prices

From £28,567 GBP
$38,277 USD
As of October 30, 2026
Save £23,024 GBP (45%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £51,591 GBP at MOH London · As of October 29, 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 1529883125. Listed at 15 retailers as of October 29, 2026, with prices from £28,567 to £51,591, a £23,024 spread on the same certified stone. MOH London lists it at £51,591. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1529883125
Dimensions11.95 × 8.51 × 5.37 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle
Top View
11.95 mm8.51 mm3.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1529883125
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.1%

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: £51,591 GBP|Low: £28,567 GBP|High: £51,935 GBP|Avg: £35,195 GBP|-0.7%
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
October 30, 2026
Retailer 5£28,567 GBP
Retailer 4£30,074 GBP
Retailer 2£30,132 GBP
Retailer 8£32,831 GBP
Retailer 6£32,858 GBP
Retailer 7£33,354 GBP
Retailer 9£34,227 GBP
Retailer 13£34,227 GBP
Retailer 11£35,596 GBP
Retailer 14£36,965 GBP
Retailer 10£38,025 GBP
Retailer 3£38,322 GBP
Retailer 12£38,957 GBP
MOH London£51,591 GBP

43 data points across 14 retailers

15 retailers£28,567 GBP to £51,591 GBP

B+
Cheapest Retailer
-
£28,567 GBP
$38,277 USD
B+
Retailer 2
-
£30,074 GBP
$40,296 USD
View
B+
Retailer 3
-
£30,132 GBP
₹3,845,100 INR
View
B+
Retailer 4
-
£31,105 GBP
$41,677 USD
View
B
Retailer 5
-
£32,831 GBP
$43,990 USD
View
Retailer 6
-
£32,831 GBP
$43,990 USD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
£33,354 GBP
View
Retailer 8
-
£34,227 GBP
$45,860 USD
View
Price last confirmed 23 days ago
B+
Retailer 9
-
£34,227 GBP
$45,860 USD
View
B
Retailer 10
-
£35,596 GBP
$47,695 USD
View
Retailer 11
-
£36,965 GBP
$49,529 USD
View
Price last confirmed 23 days ago
B
Retailer 12
-
£38,025 GBP
View
B
Retailer 13
-
£38,322 GBP
$51,347 USD
View
B
Retailer 14
-
£38,957 GBP
€49,713 EUR
View
Most Expensive
B
MOH London
AE2A7110A · Oct 29
£51,591 GBP
View
14 more retailers have this diamond
Prices start from £28,567 GBPSave up to £23,024 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
£28,567 GBP