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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 $705 AUD
$495 USD
As of October 28, 2026
Save $4,121 AUD (85%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $4,825 AUD 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 $705 to $4,825, a $4,121 spread on the same certified stone. Brilliant Earth lists it at $4,825. 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

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: $4,825 AUD|Low: $332 AUD|High: $4,968 AUD|Avg: $1,387 AUD|-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 30, 2026
Retailer 12$705 AUD
Retailer 10$726 AUD
Retailer 15$733 AUD
Retailer 7$840 AUD
Retailer 13$858 AUD
Retailer 2$881 AUD
Retailer 6$985 AUD
Retailer 4$1,113 AUD
Retailer 11$1,161 AUD
Retailer 8$1,587 AUD
Retailer 16$1,667 AUD
Retailer 5$1,677 AUD
Retailer 3$1,920 AUD
Retailer 9$2,012 AUD
Retailer 14$2,076 AUD
Brilliant Earth$4,825 AUD

37 data points across 16 retailers

23 retailers$705 AUD to $4,825 AUD

Retailer 1
-
$417 AUD
$293 USD
Price last confirmed 36 days ago
Retailer 2
-
$417 AUD
$293 USD
View
Price last confirmed 19 days ago
Retailer 3
-
$484 AUD
$340 USD
View
Price last confirmed 34 days ago
Retailer 4
-
$510 AUD
$358 USD
View
Price last confirmed 34 days ago
Retailer 5
-
$517 AUD
$363 USD
View
Price last confirmed 17 days ago
Retailer 6
-
$517 AUD
$363 USD
View
Price last confirmed 27 days ago
A
Retailer 7
-
$705 AUD
$495 USD
View
A
Retailer 8
-
$726 AUD
$510 USD
View
Final sale: no returns
A
Retailer 9
-
$733 AUD
$515 USD
View
A
Retailer 10
-
$858 AUD
ZAR 9,738 ZAR
View
A
Retailer 11
-
$881 AUD
£487 GBP
View
A
Retailer 12
-
$985 AUD
$692 USD
View
A
Retailer 13
-
$1,113 AUD
$782 USD
View
A
Retailer 14
-
$1,161 AUD
View
B+
Retailer 15
-
$1,587 AUD
$1,115 USD
View
Retailer 16
-
$1,661 AUD
$1,167 USD
View
Price last confirmed 22 days ago
B+
Retailer 17
-
$1,667 AUD
$1,171 USD
View
B+
Retailer 18
-
$1,677 AUD
$1,178 USD
View
B+
Retailer 19
-
$1,784 AUD
$1,253 USD
View
B+
Retailer 20
-
$1,920 AUD
$1,349 USD
View
B+
Retailer 21
-
$2,012 AUD
£1,113 GBP
View
B+
Retailer 22
-
$2,076 AUD
$1,458 USD
View
Most Expensive
B
Brilliant Earth
18549542A · Oct 29
$4,825 AUD
$3,390 USD
View
22 more retailers have this diamond
Prices start from $705 AUDSave up to $4,121 AUD

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
$705 AUD