CaratHunter
Plans
Round|Natural|GIA

0.50ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 1548412118

Certificate GIA 1548412118

Diamond specifications and retailer prices

From £170 GBP
As of November 5, 2026
Save £731 GBP (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £901 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 M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1548412118. Listed at 10 retailers as of November 4, 2026, with prices from £170 to £901, a £731 spread on the same certified stone. NZ Jewellers lists it at £901. 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
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1548412118
Dimensions5.01 × 5.06 × 3.19 mm
L/W Ratio1.01
Top View
5.01 mm5.06 mm0.50 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1548412118
Side View
Table 55.0%Crown 36.5°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 63.4%

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 5
Current: £901 GBP|Low: £170 GBP|High: £936 GBP|Avg: £352 GBP|-3.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 3£170 GBP
Retailer 9£199 GBP
Retailer 4£212 GBP
Retailer 8£235 GBP
Retailer 10£256 GBP
Retailer 6£262 GBP
Retailer 5£317 GBP
Retailer 7£331 GBP
Retailer 2£438 GBP
NZ Jewellers£901 GBP

44 data points across 10 retailers

10 retailers£170 GBP to £901 GBP

A
Cheapest Retailer
-
£170 GBP
B+
Retailer 2
-
£199 GBP
View
A
Retailer 3
-
£212 GBP
View
A
Retailer 4
-
£235 GBP
View
Retailer 5
-
£256 GBP
View
Price last confirmed 8 days ago
A
Retailer 6
-
£262 GBP
View
B+
Retailer 7
-
£317 GBP
View
B+
Retailer 8
-
£331 GBP
View
B
Retailer 9
-
£438 GBP
View
Most Expensive
C
NZ Jewellers
5dd9afd8-ad84-4deb-9949-85e81b670654 · Nov 4
£901 GBP
$1,213 USD
View
9 more retailers have this diamond
Prices start from £170 GBPSave up to £731 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 Round
£170 GBP