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Oval|Natural|IGI

0.50ct I SI1 Oval Natural Diamond

EX • I/SI1 • IGI 790615858

Shape and cutting style on the report: Oval brilliant

Certificate IGI 790615858

Diamond specifications and retailer prices

From £281 GBP
As of November 6, 2026
Save £903 GBP (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,183 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.5ct natural oval diamond

This 0.5ct natural oval sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 790615858. Listed at 15 retailers as of November 5, 2026, with prices from £281 to £1,183, a £903 spread on the same certified stone. NZ Jewellers lists it at £1,183. 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

0.50
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 790615858
Dimensions6.43 × 4.44 × 2.77 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Top View
6.43 mm4.44 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 790615858
Side View
Table 60.0%Crown 37.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.4%

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: £1,183 GBP|Low: £281 GBP|High: £1,183 GBP|Avg: £531 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2£281 GBP
Retailer 4£377 GBP
Retailer 3£406 GBP
Retailer 11£406 GBP
Retailer 10£433 GBP
Retailer 12£436 GBP
Retailer 5£460 GBP
Retailer 6£486 GBP
Retailer 9£520 GBP
Retailer 7£585 GBP
Retailer 8£870 GBP
NZ Jewellers£1,183 GBP

27 data points across 12 retailers

15 retailers£281 GBP to £1,183 GBP

A
Cheapest Retailer
-
£281 GBP
A
Retailer 2
-
£348 GBP
View
Final sale: no returns
A
Retailer 3
-
£377 GBP
View
Retailer 4
-
£406 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£406 GBP
View
A
Retailer 6
-
£433 GBP
View
B+
Retailer 7
-
£436 GBP
View
B+
Retailer 8
-
£460 GBP
View
B+
Retailer 9
-
£475 GBP
View
B+
Retailer 10
-
£486 GBP
View
B+
Retailer 11
-
£500 GBP
View
B+
Retailer 12
-
£520 GBP
View
B
Retailer 13
-
£585 GBP
View
B
Retailer 14
-
£870 GBP
View
Most Expensive
B
NZ Jewellers
94f349c8-f65a-4932-8869-dcbe078fc335 · Nov 5
£1,183 GBP
$1,584 USD
View
14 more retailers have this diamond
Prices start from £281 GBPSave up to £903 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
0.50ct Oval
£281 GBP