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Oval|Lab Grown|IGI

1.64ct E FL Oval Lab Grown Diamond

VG • E/FL • IGI LG818653701

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818653701

Diamond specifications and retailer prices

From £455 GBP
$606 USD
As of October 28, 2026
Save £3,112 GBP (87%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,567 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.64ct lab-grown oval diamond

This 1.64ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG818653701 or 818653701. Listed at 9 retailers as of October 28, 2026, with prices from £455 to £3,567, a £3,112 spread on the same certified stone. Brilliant Earth lists it at £3,567. 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
E
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818653701
Dimensions9.69 × 6.53 × 4.08 mm
L/W Ratio1.48
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
9.69 mm6.53 mm1.64 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818653701
Side View
Table 59.0%Crown 34.5°Girdle: MED-THKPavilion 40.3°Culet: NoneDepth 62.5%

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 28
Current: £458 GBP|Low: £252 GBP|High: £2,970 GBP|Avg: £1,065 GBP|-8.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 28, 2026
Retailer 4£252 GBP
Retailer 9£455 GBP
Retailer 1£458 GBP
Retailer 12£627 GBP
Retailer 2£648 GBP
Retailer 7£855 GBP
Retailer 10£909 GBP
Retailer 11£915 GBP
Retailer 5£1,233 GBP
Retailer 3£1,283 GBP
Retailer 8£1,997 GBP
Retailer 6£2,940 GBP

11 data points across 12 retailers

9 retailers£455 GBP to £3,567 GBP

A
Cheapest Retailer
-
£455 GBP
$606 USD
A
Retailer 2
-
£458 GBP
$610 USD
View
A
Retailer 3
-
£648 GBP
ZAR 13,946 ZAR
View
Price last confirmed 48 days ago
B+
Retailer 4
-
£855 GBP
$1,139 USD
View
B+
Retailer 5
-
£909 GBP
$1,210 USD
View
B+
Retailer 6
-
£1,233 GBP
View
B
Retailer 7
-
£1,997 GBP
$2,660 USD
View
B
Retailer 8
-
£2,940 GBP
$3,915 USD
View
Most Expensive
B
Brilliant Earth
21730926Y · Oct 28
£3,567 GBP
$4,750 USD
View
8 more retailers have this diamond
Prices start from £455 GBPSave up to £3,112 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 Oval
£455 GBP