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Round|Lab Grown|IGI

1.64ct F SI1 Round Lab Grown Diamond

VG • F/SI1 • IGI LG754510367

Shape and cutting style on the report: Round brilliant

Certificate IGI LG754510367

Diamond specifications and retailer prices

From £150 GBP
$201 USD
As of November 1, 2026
Save £720 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £870 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.64ct lab-grown round diamond

This 1.64ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG754510367 or 754510367. Listed at 15 retailers as of November 1, 2026, with prices from £150 to £870, a £720 spread on the same certified stone. MOH London lists it at £870. 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

1.64
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754510367
Dimensions7.46 × 7.41 × 4.68 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.46 mm7.41 mm1.64 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754510367
Side View
Table 60.0%Crown 37.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.0%

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 1
Current: £870 GBP|Low: £144 GBP|High: £885 GBP|Avg: £382 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 6£150 GBP
Retailer 11£174 GBP
Retailer 7£186 GBP
Retailer 4£189 GBP
Retailer 3£314 GBP
Retailer 12£323 GBP
Retailer 2£341 GBP
Retailer 5£342 GBP
Retailer 10£381 GBP
Retailer 8£598 GBP
Retailer 9£600 GBP
MOH London£870 GBP

40 data points across 12 retailers

15 retailers£150 GBP to £870 GBP

A
Cheapest Retailer
-
£150 GBP
$201 USD
A
Retailer 2
-
£174 GBP
$234 USD
View
A
Retailer 3
-
£186 GBP
$250 USD
View
Retailer 4
-
£189 GBP
$253 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
£314 GBP
€401 EUR
View
B+
Retailer 6
-
£323 GBP
$433 USD
View
B+
Retailer 7
-
£341 GBP
View
A
Retailer 8
-
£342 GBP
View
B+
Retailer 9
-
£364 GBP
$489 USD
View
B+
Retailer 10
-
£381 GBP
$511 USD
View
Retailer 11
-
£585 GBP
$785 USD
View
Price last confirmed 12 days ago
B
Retailer 12
-
£598 GBP
$803 USD
View
B
Retailer 13
-
£600 GBP
$805 USD
View
B
Retailer 14
-
£753 GBP
$1,010 USD
View
Most Expensive
B
MOH London
LG754510367 · Nov 1
£870 GBP
View
14 more retailers have this diamond
Prices start from £150 GBPSave up to £720 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
1.64ct Round
£150 GBP