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Round|Lab Grown|IGI

0.50ct E SI1 Round Lab Grown Diamond

FR • E/SI1 • IGI LG414059639

Shape and cutting style on the report: Round brilliant

Certificate IGI LG414059639

Diamond specifications and retailer prices

From £267 GBP
As of November 5, 2026
Save £715 GBP (73%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,311 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.5ct lab-grown round diamond

This 0.5ct lab-grown round sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG414059639 or 414059639. Listed at 11 retailers as of November 4, 2026, with a 268% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI1
Clarity
Fair
Cut

Specifications

CutFair
PolishGood
SymmetryGood
FluorescenceNone
Crown angle36.9°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG414059639
Dimensions4.95 × 4.99 × 3.04 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II
Top View
4.95 mm4.99 mm0.50 ctE / SI1
OriginLab Grown
CutFair
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI LG414059639
Side View
Table 65.0%Crown 36.9°Girdle: Very ThickPavilion 39.2°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £1,311 GBP|Low: £179 GBP|High: £1,325 GBP|Avg: £532 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 3, 2026
Retailer 4£179 GBP
Retailer 9£267 GBP
Retailer 8£270 GBP
Retailer 12£302 GBP
Retailer 3£314 GBP
Retailer 10£335 GBP
Retailer 14£335 GBP
Retailer 5£431 GBP
Retailer 11£536 GBP
Retailer 2£600 GBP
Retailer 6£600 GBP
Retailer 7£983 GBP
Retailer 13£1,077 GBP
MOH London£1,311 GBP

20 data points across 14 retailers

11 retailers£267 GBP to £983 GBP

B
Cheapest Retailer
-
£267 GBP
B
Retailer 2
-
£270 GBP
View
B
Retailer 3
-
£302 GBP
View
Final sale: no returns
C
Retailer 4
-
£314 GBP
View
C
Retailer 5
-
£335 GBP
View
Retailer 6
-
£335 GBP
View
Price last confirmed 12 days ago
C
Retailer 7
-
£536 GBP
View
C
Retailer 8
-
£600 GBP
View
C
Retailer 9
-
£983 GBP
View
Retailer 10
-
£1,077 GBP
View
Price under review
Most Expensive
MOH London
LG414059639 · Oct 26
£1,311 GBP
View
Price under review
10 more retailers have this diamond
Prices start from £267 GBPSave up to £715 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
£267 GBP