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Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 7541897480

Certificate GIA 7541897480

Diamond specifications and retailer prices

From £4,486 GBP
$6,020 USD
As of November 1, 2026
Save £3,427 GBP (43%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £7,913 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded I 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 7541897480. Listed at 20 retailers as of November 1, 2026, with prices from £4,486 to £7,913, a £3,427 spread on the same certified stone. MOH London lists it at £7,913. 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

1.51
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.48°
Pavilion angle39.93°
OriginNatural
Grading LabGIA
CertificateGIA 7541897480
Dimensions8.94 × 6.30 × 4.01 mm
L/W Ratio1.42
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Crystal, Feather, Indented Natural
Top View
8.94 mm6.30 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7541897480
Side View
Table 57.0%Crown 39.48°Girdle: MediumPavilion 39.93°Culet: NoneDepth 63.7%

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: Nov 1
Current: £7,913 GBP|Low: £4,093 GBP|High: £7,955 GBP|Avg: £5,176 GBP|+15.2%
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
Retailer 17
November 2, 2026
Retailer 8£4,093 GBP
Retailer 15£4,486 GBP
Retailer 4£4,765 GBP
Retailer 5£4,788 GBP
Retailer 16£5,050 GBP
Retailer 13£5,059 GBP
Retailer 9£5,190 GBP
Retailer 7£5,210 GBP
Retailer 12£5,354 GBP
Retailer 10£5,388 GBP
Retailer 3£5,474 GBP
Retailer 6£5,781 GBP
Retailer 17£5,811 GBP
Retailer 2£5,935 GBP
Retailer 11£6,203 GBP
Retailer 14£6,976 GBP
MOH London£7,913 GBP

25 data points across 17 retailers

20 retailers£4,486 GBP to £7,913 GBP

B+
Cheapest Retailer
-
£4,486 GBP
$6,020 USD
Retailer 2
-
£4,656 GBP
$6,248 USD
View
Price last confirmed 41 days ago
Retailer 3
-
£4,656 GBP
$6,248 USD
View
Price last confirmed 26 days ago
Retailer 4
-
£4,656 GBP
$6,248 USD
View
Price last confirmed 34 days ago
B+
Retailer 5
-
£4,765 GBP
$6,395 USD
View
B+
Retailer 6
-
£4,788 GBP
$6,425 USD
View
B+
Retailer 7
-
£5,050 GBP
CA$9,412 CAD
View
B+
Retailer 8
-
£5,059 GBP
$6,789 USD
View
B+
Retailer 9
-
£5,210 GBP
$6,991 USD
View
B
Retailer 10
-
£5,354 GBP
View
B
Retailer 11
-
£5,388 GBP
View
Retailer 12
-
£5,474 GBP
A$11,302 AUD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
£5,781 GBP
$7,758 USD
View
Price last confirmed 7 days ago
B
Retailer 14
-
£5,811 GBP
$7,798 USD
View
B
Retailer 15
-
£5,935 GBP
$7,965 USD
View
B
Retailer 16
-
£6,203 GBP
€7,928 EUR
View
B
Retailer 17
-
£6,976 GBP
ZAR 151,241 ZAR
View
Retailer 18
-
£7,787 GBP
$10,450 USD
View
Price last confirmed 43 days ago
Retailer 19
-
£7,787 GBP
$10,450 USD
View
Price last confirmed 27 days ago
Most Expensive
B
MOH London
D841CE379 · Nov 2
£7,913 GBP
View
19 more retailers have this diamond
Prices start from £4,486 GBPSave up to £3,427 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+
1.51ct Oval
£4,486 GBP