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Oval|Natural|IGI

1.51ct J I1 Oval Natural Diamond

EX • J/I1 • IGI 729536724

Shape and cutting style on the report: Oval brilliant

Certificate IGI 729536724

Diamond specifications and retailer prices

From £1,771 GBP
$2,376 USD
As of November 1, 2026
Save £2,363 GBP (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,134 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI 729536724. Listed at 8 retailers as of October 30, 2026, with prices from £1,771 to £4,134, a £2,363 spread on the same certified stone. NZ Jewellers lists it at £4,134. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
J
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.3°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 729536724
Dimensions9.28 × 6.22 × 4.02 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizePointed
Top View
9.28 mm6.22 mm1.51 ctJ / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 729536724
Side View
Table 61.0%Crown 38.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 64.6%

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: £4,134 GBP|Low: £1,390 GBP|High: £4,134 GBP|Avg: £2,214 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9£1,390 GBP
Retailer 8£1,771 GBP
Retailer 6£1,977 GBP
Retailer 7£1,977 GBP
Retailer 3£2,054 GBP
Retailer 4£2,082 GBP
Retailer 5£2,282 GBP
Retailer 2£2,317 GBP
NZ Jewellers£4,134 GBP

19 data points across 9 retailers

8 retailers£1,771 GBP to £4,134 GBP

B+
Cheapest Retailer
-
£1,771 GBP
$2,376 USD
B+
Retailer 2
-
£1,977 GBP
$2,653 USD
View
B+
Retailer 3
-
£1,977 GBP
$2,653 USD
View
B+
Retailer 4
-
£2,054 GBP
$2,756 USD
View
B+
Retailer 5
-
£2,082 GBP
$2,794 USD
View
B+
Retailer 6
-
£2,282 GBP
$3,062 USD
View
B+
Retailer 7
-
£2,317 GBP
€2,961 EUR
View
Most Expensive
B
NZ Jewellers
a492568f-9cd8-44f1-a05c-0eda2a2277fa · Oct 30
£4,134 GBP
$5,547 USD
View
7 more retailers have this diamond
Prices start from £1,771 GBPSave up to £2,363 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
£1,771 GBP