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Round|Lab Grown|IGI

0.50ct D SI1 Round Lab Grown Diamond

VG • D/SI1 • IGI LG407915282

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407915282

Diamond specifications and retailer prices

From £275 GBP
As of November 5, 2026
Save £367 GBP (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,417 GBP at MOH London · As of November 3, 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 D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG407915282 or 407915282. Listed at 12 retailers as of November 3, 2026, with a 134% 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
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.2°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407915282
Dimensions5.19 × 5.22 × 3.01 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
5.19 mm5.22 mm0.50 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG407915282
Side View
Table 60.0%Crown 32.2°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 57.9%

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 5
Current: £1,417 GBP|Low: £275 GBP|High: £1,434 GBP|Avg: £608 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4£275 GBP
Retailer 7£293 GBP
Retailer 10£327 GBP
Retailer 3£328 GBP
Retailer 8£363 GBP
Retailer 12£363 GBP
Retailer 9£576 GBP
Retailer 2£587 GBP
Retailer 5£642 GBP
Retailer 6£1,017 GBP
Retailer 11£1,166 GBP
MOH London£1,417 GBP

45 data points across 12 retailers

12 retailers£275 GBP to £642 GBP

B+
Cheapest Retailer
-
£275 GBP
B
Retailer 2
-
£293 GBP
View
B
Retailer 3
-
£327 GBP
View
Final sale: no returns
B
Retailer 4
-
£328 GBP
View
Retailer 5
-
£363 GBP
View
Price last confirmed 12 days ago
B
Retailer 6
-
£363 GBP
View
B
Retailer 7
-
£576 GBP
View
B
Retailer 8
-
£587 GBP
View
B
Retailer 9
-
£642 GBP
View
Retailer 10
-
£1,017 GBP
View
Price under review
Retailer 11
-
£1,166 GBP
View
Price under review
Most Expensive
MOH London
LG407915282 · Nov 3
£1,417 GBP
View
Price under review
11 more retailers have this diamond
Prices start from £275 GBPSave up to £367 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
£275 GBP