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Round|Lab Grown|IGI

0.51ct E FL Round Lab Grown Diamond

EX • E/FL • IGI LG836617387

Shape and cutting style on the report: Round brilliant

Certificate IGI LG836617387

Diamond specifications and retailer prices

From £105 GBP
$140 USD
As of October 30, 2026
Save £873 GBP (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £978 GBP at MOH London · As of October 29, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836617387 or 836617387. Listed at 12 retailers as of October 29, 2026, with prices from £105 to £978, a £873 spread on the same certified stone. MOH London lists it at £978. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836617387
Dimensions5.06 × 5.11 × 3.14 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.06 mm5.11 mm0.51 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836617387
Side View
Table 59.0%Crown 35.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.7%

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: Oct 30
Current: £978 GBP|Low: £105 GBP|High: £985 GBP|Avg: £339 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 10£105 GBP
Retailer 2£193 GBP
Retailer 6£211 GBP
Retailer 9£223 GBP
Retailer 5£230 GBP
Retailer 7£300 GBP
Retailer 12£356 GBP
Retailer 8£396 GBP
Retailer 3£410 GBP
Retailer 11£417 GBP
Retailer 4£421 GBP
MOH London£978 GBP

24 data points across 12 retailers

12 retailers£105 GBP to £978 GBP

A
Cheapest Retailer
-
£105 GBP
$140 USD
Final sale: no returns
A
Retailer 2
-
£193 GBP
View
A
Retailer 3
-
£211 GBP
ZAR 4,531 ZAR
View
A
Retailer 4
-
£223 GBP
$297 USD
View
A
Retailer 5
-
£230 GBP
€292 EUR
View
Retailer 6
-
£300 GBP
$400 USD
View
Price last confirmed 12 days ago
B+
Retailer 7
-
£356 GBP
SGD 641 SGD
View
B
Retailer 8
-
£396 GBP
$527 USD
View
B
Retailer 9
-
£404 GBP
$538 USD
View
B
Retailer 10
-
£417 GBP
$556 USD
View
B
Retailer 11
-
£421 GBP
$560 USD
View
Most Expensive
B
MOH London
LG836617387 · Oct 29
£978 GBP
View
11 more retailers have this diamond
Prices start from £105 GBPSave up to £873 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
£105 GBP