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Round|Lab Grown|IGI

0.51ct E SI2 Round Lab Grown Diamond

VG • E/SI2 • IGI LG849637020

Certificate IGI LG849637020

Diamond specifications and retailer prices

From £72 GBP
As of November 5, 2026
Save £518 GBP (88%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £590 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG849637020 or 849637020. Listed at 7 retailers as of November 4, 2026, with prices from £72 to £590, a £518 spread on the same certified stone. MOH London lists it at £590. 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

0.51
Carat
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG849637020
Dimensions5.04 × 5.08 × 3.10 mm
L/W Ratio1.01
Top View
5.04 mm5.08 mm0.51 ctE / SI2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG849637020
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 61.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £590 GBP|Low: £72 GBP|High: £590 GBP|Avg: £214 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 2£72 GBP
Retailer 5£95 GBP
Retailer 3£172 GBP
Retailer 4£175 GBP
Retailer 6£230 GBP
MOH London£590 GBP

4 data points across 6 retailers

7 retailers£72 GBP to £590 GBP

A
Cheapest Retailer
-
£72 GBP
Final sale: no returns
B+
Retailer 2
-
£95 GBP
View
B+
Retailer 3
-
£172 GBP
View
B+
Retailer 4
-
£175 GBP
View
B
Retailer 5
-
£223 GBP
View
B
Retailer 6
-
£230 GBP
View
Most Expensive
C
MOH London
LG849637020 · Nov 4
£590 GBP
View
6 more retailers have this diamond
Prices start from £72 GBPSave up to £518 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
0.51ct Round
£72 GBP