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Round|Lab Grown|IGI

0.51ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG727574450

Shape and cutting style on the report: Round brilliant

Certificate IGI LG727574450

Diamond specifications and retailer prices

From £87 GBP
$117 USD
As of October 29, 2026
Save £825 GBP (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £913 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG727574450 or 727574450. Listed at 20 retailers as of October 29, 2026, with prices from £87 to £913, a £825 spread on the same certified stone. MOH London lists it at £913. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG727574450
Dimensions5.19 × 5.22 × 3.10 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
5.19 mm5.22 mm0.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG727574450
Side View
Table 57.0%Crown 32.8°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 59.4%

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: Oct 29
Current: £913 GBP|Low: £85 GBP|High: £972 GBP|Avg: £288 GBP|-6.0%
MOH London
Retailer 2
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October 31, 2026
Retailer 11£87 GBP
Retailer 5£97 GBP
Retailer 20£102 GBP
Retailer 4£116 GBP
Retailer 18£116 GBP
Retailer 10£148 GBP
Retailer 19£179 GBP
Retailer 15£196 GBP
Retailer 14£197 GBP
Retailer 2£222 GBP
Retailer 13£246 GBP
Retailer 17£277 GBP
Retailer 12£284 GBP
Retailer 16£293 GBP
Retailer 9£304 GBP
Retailer 3£335 GBP
Retailer 6£349 GBP
Retailer 7£392 GBP
Retailer 8£694 GBP
MOH London£913 GBP

37 data points across 20 retailers

20 retailers£87 GBP to £913 GBP

A
Cheapest Retailer
-
£87 GBP
$117 USD
A
Retailer 2
-
£97 GBP
$130 USD
View
Final sale: no returns
A
Retailer 3
-
£102 GBP
$136 USD
View
A
Retailer 4
-
£116 GBP
$155 USD
View
A
Retailer 5
-
£116 GBP
$155 USD
View
A
Retailer 6
-
£148 GBP
$198 USD
View
A
Retailer 7
-
£179 GBP
$240 USD
View
A
Retailer 8
-
£196 GBP
ZAR 4,252 ZAR
View
A
Retailer 9
-
£197 GBP
€252 EUR
View
A
Retailer 10
-
£222 GBP
View
B+
Retailer 11
-
£246 GBP
$329 USD
View
B+
Retailer 12
-
£277 GBP
A$571 AUD
View
B+
Retailer 13
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£284 GBP
$380 USD
View
B+
Retailer 14
-
£293 GBP
A$605 AUD
View
B+
Retailer 15
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£304 GBP
SGD 550 SGD
View
B+
Retailer 16
-
£335 GBP
$449 USD
View
B+
Retailer 17
-
£349 GBP
$468 USD
View
B
Retailer 18
-
£392 GBP
$526 USD
View
B
Retailer 19
-
£694 GBP
$930 USD
View
Most Expensive
B
MOH London
LG727574450 · Oct 29
£913 GBP
View
19 more retailers have this diamond
Prices start from £87 GBPSave up to £825 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
£87 GBP