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Oval|Natural|IGI

1.51ct I IF Oval Natural Diamond

VG • I/IF • IGI 851622831

Certificate IGI 851622831

Diamond specifications and retailer prices

From £3,220 GBP
SGD 5,830 SGD
As of October 31, 2026
Save £3,359 GBP (51%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £6,579 GBP at MOH London · As of November 1, 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 IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 851622831. Listed at 11 retailers as of October 31, 2026, with prices from £3,220 to £6,579, a £3,359 spread on the same certified stone. MOH London lists it at £6,579. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
I
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 851622831
Dimensions8.99 × 6.24 × 3.99 mm
L/W Ratio1.44
Top View
8.99 mm6.24 mm1.51 ctI / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 851622831
Side View
Table 62.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 63.9%

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 31
Current: £6,579 GBP|Low: £3,754 GBP|High: £6,579 GBP|Avg: £4,475 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 3£3,754 GBP
Retailer 7£3,920 GBP
Retailer 4£3,971 GBP
Retailer 10£4,040 GBP
Retailer 5£4,165 GBP
Retailer 2£4,212 GBP
Retailer 6£4,465 GBP
Retailer 9£4,753 GBP
Retailer 8£5,487 GBP
MOH London£6,579 GBP

6 data points across 10 retailers

11 retailers£3,220 GBP to £6,579 GBP

A
Cheapest Retailer
-
£3,220 GBP
SGD 5,830 SGD
A
Retailer 2
-
£3,754 GBP
$5,030 USD
View
A
Retailer 3
-
£3,920 GBP
$5,252 USD
View
A
Retailer 4
-
£3,971 GBP
View
A
Retailer 5
-
£4,040 GBP
$5,413 USD
View
A
Retailer 6
-
£4,165 GBP
$5,580 USD
View
A
Retailer 7
-
£4,212 GBP
View
A
Retailer 8
-
£4,465 GBP
$5,983 USD
View
A
Retailer 9
-
£4,753 GBP
€6,065 EUR
View
B+
Retailer 10
-
£5,487 GBP
ZAR 118,764 ZAR
View
Most Expensive
B+
MOH London
A4C05C9EC · Nov 1
£6,579 GBP
View
10 more retailers have this diamond
Prices start from £3,220 GBPSave up to £3,359 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
1.51ct Oval
£3,220 GBP