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Round|Natural|IGI

0.50ct N SI2 Round Natural Diamond

EX • N/SI2 • IGI 154533140

Shape and cutting style on the report: Round brilliant

Certificate IGI 154533140

Diamond specifications and retailer prices

From £187 GBP
As of November 4, 2026
Save £660 GBP (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £847 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.5ct natural round diamond

This 0.5ct natural round sits in the half to three-quarter carat band, graded N colour (tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 154533140. Listed at 8 retailers as of November 4, 2026, with prices from £187 to £847, a £660 spread on the same certified stone. NZ Jewellers lists it at £847. 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
N
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle34.5°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 154533140
Dimensions5.16 × 5.17 × 3.06 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
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Top View
5.16 mm5.17 mm0.50 ctN / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 154533140
Side View
Table 60.5%Crown 34.5°Girdle: MediumPavilion 40.5°Culet: NoneDepth 59.3%

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 4
Current: £316 GBP|Low: £245 GBP|High: £319 GBP|Avg: £281 GBP|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 4£245 GBP
Retailer 3£281 GBP
Retailer 2£283 GBP
Retailer 1£316 GBP

13 data points across 4 retailers

8 retailers£187 GBP to £847 GBP

B+
Cheapest Retailer
-
£187 GBP
Retailer 2
-
£201 GBP
View
Price last confirmed 8 days ago
B+
Retailer 3
-
£209 GBP
View
B+
Retailer 4
-
£245 GBP
View
B+
Retailer 5
-
£252 GBP
View
B
Retailer 6
-
£283 GBP
View
B
Retailer 7
-
£316 GBP
View
Most Expensive
C
NZ Jewellers
db749cd1-baf2-4c11-8a26-eaa99fde4fb4 · Nov 4
£847 GBP
$1,140 USD
View
7 more retailers have this diamond
Prices start from £187 GBPSave up to £660 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+
0.50ct Round
£187 GBP