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Oval|Lab Grown|IGI

1.64ct E IF Oval Lab Grown Diamond

EX • E/IF • IGI LG731533569

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG731533569

Diamond specifications and retailer prices

From $424 AUD
$298 USD
As of October 26, 2026
Save $4,373 AUD (91%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $4,797 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 LG731533569 or 731533569. Listed at 28 retailers as of October 26, 2026, with prices from $424 to $4,797, a $4,373 spread on the same certified stone. Brilliant Earth lists it at $4,797. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731533569
Dimensions9.72 × 6.66 × 4.10 mm
L/W Ratio1.46
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
9.72 mm6.66 mm1.64 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731533569
Side View
Table 60.0%Crown 35.2°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.6%

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 26
Current: $4,797 AUD|Low: $407 AUD|High: $4,797 AUD|Avg: $1,408 AUD
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
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Retailer 12
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Retailer 20
October 29, 2026
Retailer 3$424 AUD
Retailer 11$474 AUD
Retailer 7$491 AUD
Retailer 5$525 AUD
Retailer 12$525 AUD
Retailer 14$601 AUD
Retailer 17$747 AUD
Retailer 20$764 AUD
Retailer 9$902 AUD
Retailer 16$997 AUD
Retailer 2$1,038 AUD
Retailer 15$1,352 AUD
Retailer 19$1,614 AUD
Retailer 6$1,865 AUD
Retailer 4$1,970 AUD
Retailer 8$2,143 AUD
Retailer 10$2,256 AUD
Retailer 13$2,337 AUD
Retailer 18$3,530 AUD
Brilliant Earth$4,797 AUD

44 data points across 20 retailers

28 retailers$424 AUD to $4,797 AUD

A
Cheapest Retailer
-
$424 AUD
$298 USD
A
Retailer 2
-
$474 AUD
$333 USD
View
Final sale: no returns
A
Retailer 3
-
$491 AUD
$345 USD
View
A
Retailer 4
-
$525 AUD
$369 USD
View
A
Retailer 5
-
$525 AUD
$369 USD
View
A
Retailer 6
-
$601 AUD
£332 GBP
View
A
Retailer 7
-
$747 AUD
HK$4,100 HKD
View
A
Retailer 8
-
$747 AUD
$525 USD
View
A
Retailer 9
-
$764 AUD
$537 USD
View
A
Retailer 10
-
$902 AUD
$634 USD
View
A
Retailer 11
-
$997 AUD
ZAR 11,313 ZAR
View
A
Retailer 12
-
$1,038 AUD
£574 GBP
View
A
Retailer 13
-
$1,314 AUD
$923 USD
View
A
Retailer 14
-
$1,352 AUD
View
B+
Retailer 15
-
$1,614 AUD
$1,134 USD
View
B+
Retailer 16
-
$1,865 AUD
$1,310 USD
View
B+
Retailer 17
-
$1,970 AUD
$1,384 USD
View
B+
Retailer 18
-
$2,018 AUD
$1,418 USD
View
B+
Retailer 19
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$2,094 AUD
$1,471 USD
View
B+
Retailer 20
-
$2,137 AUD
$1,501 USD
View
B+
Retailer 21
-
$2,143 AUD
SGD 2,035 SGD
View
B+
Retailer 22
-
$2,256 AUD
£1,248 GBP
View
B+
Retailer 23
-
$2,337 AUD
£1,293 GBP
View
B
Retailer 24
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$3,530 AUD
$2,480 USD
View
B
Retailer 25
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$3,726 AUD
$2,618 USD
View
Price last confirmed 101 days ago
B
Retailer 26
-
$3,758 AUD
$2,640 USD
View
B
Retailer 27
-
$4,212 AUD
£2,330 GBP
View
Most Expensive
B
Brilliant Earth
20152709Y · Oct 29
$4,797 AUD
$3,370 USD
View
27 more retailers have this diamond
Prices start from $424 AUDSave up to $4,373 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
$424 AUD