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Emerald|Lab Grown|IGI

1.78ct E IF Emerald Lab Grown Diamond

ID • E/IF • IGI LG823624458

Shape and cutting style on the report: Emerald cut

Certificate IGI LG823624458

Diamond specifications and retailer prices

From $430 AUD
$302 USD
As of October 30, 2026
Save $5,833 AUD (93%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,263 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.78ct lab-grown emerald diamond

This 1.78ct lab-grown emerald 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 LG823624458 or 823624458. Listed at 21 retailers as of October 29, 2026, with prices from $430 to $6,263, a $5,833 spread on the same certified stone. Brilliant Earth lists it at $6,263. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.7°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823624458
Dimensions8.23 × 5.54 × 3.65 mm
L/W Ratio1.49
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.23 mm5.54 mm1.78 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823624458
Side View
Table 66.0%Crown 40.7°Girdle: Slightly ThickPavilion 38.6°Culet: LargeDepth 65.9%

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 30
Current: $6,263 AUD|Low: $480 AUD|High: $6,647 AUD|Avg: $1,580 AUD|+9.7%
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
Retailer 17
Retailer 18
October 30, 2026
Retailer 4$480 AUD
Retailer 5$498 AUD
Retailer 6$534 AUD
Retailer 17$719 AUD
Retailer 15$754 AUD
Retailer 14$916 AUD
Retailer 2$947 AUD
Retailer 11$948 AUD
Retailer 13$1,243 AUD
Retailer 16$1,638 AUD
Retailer 9$1,714 AUD
Retailer 10$1,781 AUD
Retailer 7$1,946 AUD
Retailer 18$2,050 AUD
Retailer 8$2,082 AUD
Retailer 12$2,148 AUD
Retailer 3$2,163 AUD
Brilliant Earth$6,263 AUD

44 data points across 18 retailers

21 retailers$430 AUD to $6,263 AUD

A
Cheapest Retailer
-
$430 AUD
$302 USD
A
Retailer 2
-
$480 AUD
$337 USD
View
Final sale: no returns
A
Retailer 3
-
$498 AUD
$350 USD
View
A
Retailer 4
-
$534 AUD
$375 USD
View
A
Retailer 5
-
$534 AUD
$375 USD
View
B+
Retailer 6
-
$719 AUD
$505 USD
View
A
Retailer 7
-
$754 AUD
$530 USD
View
A
Retailer 8
-
$916 AUD
ZAR 10,398 ZAR
View
A
Retailer 9
-
$947 AUD
£524 GBP
View
A
Retailer 10
-
$948 AUD
€634 EUR
View
A
Retailer 11
-
$1,243 AUD
View
B+
Retailer 12
-
$1,638 AUD
$1,151 USD
View
B+
Retailer 13
-
$1,714 AUD
SGD 1,627 SGD
View
B+
Retailer 14
-
$1,714 AUD
$1,204 USD
View
B+
Retailer 15
-
$1,781 AUD
$1,252 USD
View
B+
Retailer 16
-
$1,946 AUD
$1,367 USD
View
B+
Retailer 17
-
$2,050 AUD
$1,440 USD
View
B+
Retailer 18
-
$2,082 AUD
£1,152 GBP
View
B+
Retailer 19
-
$2,148 AUD
£1,188 GBP
View
B+
Retailer 20
-
$2,163 AUD
$1,519 USD
View
Most Expensive
B
Brilliant Earth
20908654A · Oct 29
$6,263 AUD
$4,400 USD
View
20 more retailers have this diamond
Prices start from $430 AUDSave up to $5,833 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 Emerald
$430 AUD