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Oval|Lab Grown|IGI

1.64ct E IF Oval Lab Grown Diamond

ID • E/IF • IGI LG788640224

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG788640224

Diamond specifications and retailer prices

From £372 GBP
$495 USD
As of October 28, 2026
Save £2,174 GBP (85%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,546 GBP at Brilliant Earth · As of October 29, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG788640224 or 788640224. Listed at 23 retailers as of October 28, 2026, with prices from £372 to £2,546, a £2,174 spread on the same certified stone. Brilliant Earth lists it at £2,546. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.64
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788640224
Dimensions9.61 × 6.54 × 4.01 mm
L/W Ratio1.47
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
9.61 mm6.54 mm1.64 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788640224
Side View
Table 59.0%Crown 37°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 61.3%

Caratlytics Score

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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: £2,546 GBP|Low: £175 GBP|High: £2,621 GBP|Avg: £730 GBP|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 29, 2026
Retailer 12£372 GBP
Retailer 10£383 GBP
Retailer 15£387 GBP
Retailer 7£443 GBP
Retailer 13£453 GBP
Retailer 2£465 GBP
Retailer 6£520 GBP
Retailer 4£587 GBP
Retailer 11£613 GBP
Retailer 8£837 GBP
Retailer 16£879 GBP
Retailer 5£885 GBP
Retailer 3£1,013 GBP
Retailer 9£1,061 GBP
Retailer 14£1,095 GBP
Brilliant Earth£2,546 GBP

36 data points across 16 retailers

23 retailers£372 GBP to £2,546 GBP

A
Retailer 1
-
£220 GBP
$293 USD
Price last confirmed 36 days ago
A
Retailer 2
-
£220 GBP
$293 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
£255 GBP
$340 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
£269 GBP
$358 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
£273 GBP
$363 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
£273 GBP
$363 USD
View
Price last confirmed 27 days ago
A
Retailer 7
-
£372 GBP
$495 USD
View
A
Retailer 8
-
£383 GBP
$510 USD
View
Final sale: no returns
A
Retailer 9
-
£387 GBP
$515 USD
View
A
Retailer 10
-
£453 GBP
ZAR 9,738 ZAR
View
A
Retailer 11
-
£465 GBP
View
A
Retailer 12
-
£520 GBP
$692 USD
View
A
Retailer 13
-
£587 GBP
$782 USD
View
A
Retailer 14
-
£613 GBP
A$1,255 AUD
View
B+
Retailer 15
-
£837 GBP
$1,115 USD
View
B+
Retailer 16
-
£876 GBP
$1,167 USD
View
Price last confirmed 22 days ago
B+
Retailer 17
-
£879 GBP
$1,171 USD
View
B+
Retailer 18
-
£885 GBP
$1,178 USD
View
B+
Retailer 19
-
£941 GBP
$1,253 USD
View
B+
Retailer 20
-
£1,013 GBP
$1,349 USD
View
B+
Retailer 21
-
£1,061 GBP
View
B+
Retailer 22
-
£1,095 GBP
$1,458 USD
View
Most Expensive
B
Brilliant Earth
18549542A · Oct 29
£2,546 GBP
$3,390 USD
View
22 more retailers have this diamond
Prices start from £372 GBPSave up to £2,174 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
£372 GBP