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Oval|Natural|IGI

1.51ct G SI2 Oval Natural Diamond

ID • G/SI2 • IGI 797

Certificate IGI 797

Diamond specifications and retailer prices

From £1,963 GBP
As of November 6, 2026
Save £1,445 GBP (42%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,764 GBP at Wholesale Diamonds Direct · As of October 9, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI. Listed at 7 retailers as of November 6, 2026, with a 74% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 797
Dimensions8.96 × 6.42 × 3.93 mm
L/W Ratio1.40
Top View
8.96 mm6.42 mm1.51 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 797
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.2%

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 6
Current: £1,963 GBP|Low: £1,537 GBP|High: £3,875 GBP|Avg: £2,404 GBP|-12.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Wholesale Diamonds Direct
November 6, 2026
Retailer 6£1,537 GBP
Retailer 1£1,963 GBP
Retailer 3£1,972 GBP
Retailer 2£1,996 GBP
Retailer 4£2,418 GBP
Retailer 5£2,678 GBP
Wholesale Diamonds Direct£3,408 GBP

32 data points across 7 retailers

7 retailers£1,963 GBP to £3,408 GBP

A
Cheapest Retailer
-
£1,963 GBP
A
Retailer 2
-
£1,972 GBP
View
A
Retailer 3
-
£1,996 GBP
View
A
Retailer 4
-
£2,418 GBP
View
A
Retailer 5
-
£3,408 GBP
View
Retailer 6
-
£3,602 GBP
View
Price last confirmed 18 days ago
Most Expensive
Wholesale Diamonds Direct
403843561 · Oct 9
£3,764 GBP
$5,038 USD
View
Price last confirmed 28 days ago
6 more retailers have this diamond
Prices start from £1,963 GBPSave up to £1,445 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
£1,963 GBP