Oval|Natural|IGI

0.50ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 815673850

Shape and cutting style on the report: Oval brilliant

Certificate IGI 815673850

Diamond specifications and retailer prices

From £237 GBP
As of November 6, 2026
Save £989 GBP (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,226 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815673850. Listed at 14 retailers as of November 5, 2026, with prices from £237 to £1,226, a £989 spread on the same certified stone. NZ Jewellers lists it at £1,226. 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

0.50
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle39.9°
OriginNatural
Grading LabIGI
CertificateIGI 815673850
Dimensions5.96 × 4.45 × 2.84 mm
L/W Ratio1.34
Girdle conditionFaceted
Top View
5.96 mm4.45 mm0.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815673850
Side View
Table 63.0%Crown 39.3°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 63.8%

Caratlytics Score

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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: £1,226 GBP|Low: £237 GBP|High: £1,226 GBP|Avg: £458 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
Retailer 13
November 6, 2026
Retailer 2£237 GBP
Retailer 13£320 GBP
Retailer 11£344 GBP
Retailer 12£344 GBP
Retailer 3£369 GBP
Retailer 4£370 GBP
Retailer 6£390 GBP
Retailer 8£408 GBP
Retailer 5£446 GBP
Retailer 9£496 GBP
Retailer 7£524 GBP
Retailer 10£738 GBP
NZ Jewellers£1,226 GBP

26 data points across 13 retailers

14 retailers£237 GBP to £1,226 GBP

A
Cheapest Retailer
-
£237 GBP
B+
Retailer 2
-
£320 GBP
View
B+
Retailer 3
-
£344 GBP
View
Retailer 4
-
£344 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£369 GBP
View
B+
Retailer 6
-
£370 GBP
View
B+
Retailer 7
-
£390 GBP
View
B+
Retailer 8
-
£408 GBP
View
B+
Retailer 9
-
£418 GBP
View
B
Retailer 10
-
£446 GBP
View
B
Retailer 11
-
£496 GBP
View
B
Retailer 12
-
£524 GBP
View
B
Retailer 13
-
£738 GBP
View
Most Expensive
C
NZ Jewellers
6bba7a95-f147-4ae4-bf71-77febf028e53 · Nov 5
£1,226 GBP
$1,641 USD
View
13 more retailers have this diamond
Prices start from £237 GBPSave up to £989 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
£237 GBP