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Round|Lab Grown|IGI

0.64ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG500163989

Shape and cutting style on the report: Round brilliant

Certificate IGI LG500163989

Diamond specifications and retailer prices

From £342 GBP
$458 USD
As of October 29, 2026
Save £797 GBP (70%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,558 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.64ct lab-grown round diamond

This 0.64ct lab-grown round sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG500163989 or 500163989. Listed at 12 retailers as of October 26, 2026, with a 233% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.64
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500163989
Dimensions5.48 × 5.44 × 3.43 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
5.48 mm5.44 mm0.64 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500163989
Side View
Table 58.0%Crown 36.3°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.7%

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: Oct 29
Current: £1,558 GBP|Low: £231 GBP|High: £1,574 GBP|Avg: £648 GBP|+0.1%
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
October 30, 2026
Retailer 5£231 GBP
Retailer 8£342 GBP
Retailer 9£351 GBP
Retailer 12£382 GBP
Retailer 4£383 GBP
Retailer 3£424 GBP
Retailer 10£424 GBP
Retailer 11£663 GBP
Retailer 2£699 GBP
Retailer 6£717 GBP
Retailer 7£1,139 GBP
Retailer 13£1,361 GBP
MOH London£1,558 GBP

43 data points across 13 retailers

12 retailers£342 GBP to £1,139 GBP

B+
Cheapest Retailer
-
£342 GBP
$458 USD
B+
Retailer 2
-
£351 GBP
$470 USD
View
B+
Retailer 3
-
£382 GBP
$512 USD
View
Final sale: no returns
B+
Retailer 4
-
£383 GBP
$513 USD
View
B
Retailer 5
-
£424 GBP
$568 USD
View
Retailer 6
-
£424 GBP
$568 USD
View
Price last confirmed 14 days ago
B
Retailer 7
-
£663 GBP
$888 USD
View
B
Retailer 8
-
£699 GBP
View
B
Retailer 9
-
£717 GBP
€915 EUR
View
B
Retailer 10
-
£1,139 GBP
$1,526 USD
View
Retailer 11
-
£1,361 GBP
$1,824 USD
View
Price under review
Most Expensive
MOH London
LG500163989 · Oct 26
£1,558 GBP
View
Price under review
11 more retailers have this diamond
Prices start from £342 GBPSave up to £797 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+
0.64ct Round
£342 GBP