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Oval|Natural|IGI

0.51ct H IF Oval Natural Diamond

EX • H/IF • IGI 756599092

Shape and cutting style on the report: Oval brilliant

Certificate IGI 756599092

Diamond specifications and retailer prices

From £331 GBP
As of November 5, 2026
Save £1,958 GBP (86%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,355 GBP at Flawless Fine Jewelry · As of November 2, 2026
View at Flawless Fine Jewelry

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 756599092. Listed at 14 retailers as of November 2, 2026, with a 591% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
H
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle40.4°
OriginNatural
Grading LabIGI
CertificateIGI 756599092
Dimensions6.61 × 4.31 × 2.74 mm
L/W Ratio1.53
Girdle conditionFaceted
Culet sizePointed
Top View
6.61 mm4.31 mm0.51 ctH / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 756599092
Side View
Table 62.0%Crown 38.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.6%

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 5
Current: £2,355 GBP|Low: £331 GBP|High: £2,355 GBP|Avg: £811 GBP
Flawless Fine Jewelry
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
November 6, 2026
Retailer 7£331 GBP
Retailer 13£416 GBP
Retailer 6£431 GBP
Retailer 9£603 GBP
Retailer 2£677 GBP
Retailer 10£1,206 GBP
Retailer 5£1,302 GBP
Retailer 4£1,307 GBP
Retailer 3£1,352 GBP
Retailer 12£1,473 GBP
Retailer 11£1,508 GBP
Retailer 8£2,016 GBP
Retailer 14£2,289 GBP
Flawless Fine Jewelry£2,355 GBP

39 data points across 14 retailers

14 retailers£331 GBP to £2,289 GBP

A
Cheapest Retailer
-
£331 GBP
A
Retailer 2
-
£416 GBP
View
A
Retailer 3
-
£431 GBP
View
A
Retailer 4
-
£603 GBP
View
B+
Retailer 5
-
£677 GBP
View
B
Retailer 6
-
£1,206 GBP
View
Final sale: no returns
B
Retailer 7
-
£1,302 GBP
View
B
Retailer 8
-
£1,307 GBP
View
B
Retailer 9
-
£1,352 GBP
View
B
Retailer 10
-
£1,473 GBP
View
B
Retailer 11
-
£1,508 GBP
View
B
Retailer 12
-
£2,016 GBP
View
B
Retailer 13
-
£2,289 GBP
View
Most Expensive
Flawless Fine Jewelry
947E3CCF1 · Nov 2
£2,355 GBP
View
Price under review
13 more retailers have this diamond
Prices start from £331 GBPSave up to £1,958 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
0.51ct Oval
£331 GBP