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Round|Natural|IGI

0.50ct N SI2 Round Natural Diamond

GD • N/SI2 • IGI 257720141

Shape and cutting style on the report: Round brilliant

Certificate IGI 257720141

Diamond specifications and retailer prices

From £169 GBP
As of November 4, 2026
Save £597 GBP (78%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £767 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 standard cut grade and certified by IGI 257720141. Listed at 7 retailers as of November 4, 2026, with prices from £169 to £767, a £597 spread on the same certified stone. NZ Jewellers lists it at £767. 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
N
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle38°
Pavilion angle41.7°
OriginNatural
Grading LabIGI
CertificateIGI 257720141
Dimensions4.89 × 4.94 × 3.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
4.89 mm4.94 mm0.50 ctN / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateIGI 257720141
Side View
Table 55.5%Crown 38°Girdle: STK-THKPavilion 41.7°Culet: NoneDepth 66.7%

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: £289 GBP|Low: £218 GBP|High: £292 GBP|Avg: £254 GBP|+0.8%
Retailer 1
Retailer 2
Retailer 3
November 5, 2026
Retailer 3£218 GBP
Retailer 2£254 GBP
Retailer 1£289 GBP

15 data points across 3 retailers

7 retailers£169 GBP to £767 GBP

B+
Cheapest Retailer
-
£169 GBP
Retailer 2
-
£182 GBP
View
Price last confirmed 8 days ago
B+
Retailer 3
-
£189 GBP
View
B+
Retailer 4
-
£218 GBP
View
B+
Retailer 5
-
£228 GBP
View
B
Retailer 6
-
£289 GBP
View
Most Expensive
C
NZ Jewellers
969ad41e-3ac5-4e03-ad5d-ab8f923da144 · Nov 4
£767 GBP
$1,032 USD
View
6 more retailers have this diamond
Prices start from £169 GBPSave up to £597 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
£169 GBP