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Oval|Lab Grown|IGI

1.78ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG836614343

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG836614343

Diamond specifications and retailer prices

From $545 AUD
$383 USD
As of October 29, 2026
Save $5,867 AUD (91%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $6,412 AUD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.78ct lab-grown oval diamond

This 1.78ct 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 top-tier cut grade and certified by IGI LG836614343 or 836614343. Listed at 22 retailers as of October 28, 2026, with prices from $545 to $6,412, a $5,867 spread on the same certified stone. Rare Carat lists it at $6,412. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836614343
Dimensions9.79 × 6.80 × 4.18 mm
L/W Ratio1.44
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
9.79 mm6.80 mm1.78 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836614343
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $6,412 AUD|Low: $545 AUD|High: $6,476 AUD|Avg: $1,659 AUD|-1.0%
Rare Carat
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
Retailer 17
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Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 4$545 AUD
Retailer 19$611 AUD
Retailer 6$621 AUD
Retailer 10$676 AUD
Retailer 18$676 AUD
Retailer 2$698 AUD
Retailer 17$1,025 AUD
Retailer 20$1,039 AUD
Retailer 21$1,075 AUD
Retailer 16$1,161 AUD
Retailer 11$1,163 AUD
Retailer 13$1,223 AUD
Retailer 3$1,895 AUD
Retailer 5$1,984 AUD
Retailer 9$2,171 AUD
Retailer 7$2,225 AUD
Retailer 14$2,326 AUD
Retailer 8$2,344 AUD
Retailer 15$2,654 AUD
Retailer 12$3,161 AUD
Rare Carat$6,412 AUD

23 data points across 21 retailers

22 retailers$545 AUD to $6,412 AUD

A
Cheapest Retailer
-
$545 AUD
$383 USD
A
Retailer 2
-
$611 AUD
$429 USD
View
A
Retailer 3
-
$621 AUD
$436 USD
View
Final sale: no returns
A
Retailer 4
-
$676 AUD
$475 USD
View
A
Retailer 5
-
$676 AUD
$475 USD
View
A
Retailer 6
-
$698 AUD
£386 GBP
View
A
Retailer 7
-
$1,025 AUD
$720 USD
View
A
Retailer 8
-
$1,039 AUD
$730 USD
View
A
Retailer 9
-
$1,075 AUD
$755 USD
View
A
Retailer 10
-
$1,161 AUD
ZAR 13,174 ZAR
View
A
Retailer 11
-
$1,223 AUD
£676 GBP
View
B+
Retailer 12
-
$1,895 AUD
$1,331 USD
View
B+
Retailer 13
-
$1,984 AUD
$1,394 USD
View
B+
Retailer 14
-
$2,171 AUD
$1,525 USD
View
B+
Retailer 15
-
$2,225 AUD
$1,563 USD
View
B+
Retailer 16
-
$2,326 AUD
SGD 2,208 SGD
View
B+
Retailer 17
-
$2,344 AUD
$1,647 USD
View
B+
Retailer 18
-
$2,654 AUD
£1,468 GBP
View
B+
Retailer 19
-
$3,161 AUD
$2,221 USD
View
B
Retailer 20
-
$4,653 AUD
$3,269 USD
View
B
Retailer 21
-
$5,338 AUD
$3,750 USD
View
Most Expensive
B
Rare Carat
PD-252061 · Oct 28
$6,412 AUD
$4,505 USD
View
21 more retailers have this diamond
Prices start from $545 AUDSave up to $5,867 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
1.78ct Oval
$545 AUD