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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 $538 NZD
$302 USD
As of October 30, 2026
Save $7,296 NZD (93%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,834 NZD 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 $538 to $7,834, a $7,296 spread on the same certified stone. Brilliant Earth lists it at $7,834. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $7,834 NZD|Low: $600 NZD|High: $8,315 NZD|Avg: $1,977 NZD|+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$600 NZD
Retailer 5$623 NZD
Retailer 6$668 NZD
Retailer 17$899 NZD
Retailer 15$944 NZD
Retailer 14$1,146 NZD
Retailer 2$1,184 NZD
Retailer 11$1,185 NZD
Retailer 13$1,554 NZD
Retailer 16$2,049 NZD
Retailer 9$2,144 NZD
Retailer 10$2,228 NZD
Retailer 7$2,434 NZD
Retailer 18$2,564 NZD
Retailer 8$2,605 NZD
Retailer 12$2,686 NZD
Retailer 3$2,705 NZD
Brilliant Earth$7,834 NZD

44 data points across 18 retailers

21 retailers$538 NZD to $7,834 NZD

A
Cheapest Retailer
-
$538 NZD
$302 USD
A
Retailer 2
-
$600 NZD
$337 USD
View
Final sale: no returns
A
Retailer 3
-
$623 NZD
$350 USD
View
A
Retailer 4
-
$668 NZD
$375 USD
View
A
Retailer 5
-
$668 NZD
$375 USD
View
B+
Retailer 6
-
$899 NZD
$505 USD
View
A
Retailer 7
-
$944 NZD
$530 USD
View
A
Retailer 8
-
$1,146 NZD
ZAR 10,398 ZAR
View
A
Retailer 9
-
$1,184 NZD
£524 GBP
View
A
Retailer 10
-
$1,185 NZD
€634 EUR
View
A
Retailer 11
-
$1,554 NZD
A$1,343 AUD
View
B+
Retailer 12
-
$2,049 NZD
$1,151 USD
View
B+
Retailer 13
-
$2,144 NZD
SGD 1,627 SGD
View
B+
Retailer 14
-
$2,144 NZD
$1,204 USD
View
B+
Retailer 15
-
$2,228 NZD
$1,252 USD
View
B+
Retailer 16
-
$2,434 NZD
$1,367 USD
View
B+
Retailer 17
-
$2,564 NZD
$1,440 USD
View
B+
Retailer 18
-
$2,605 NZD
£1,152 GBP
View
B+
Retailer 19
-
$2,686 NZD
£1,188 GBP
View
B+
Retailer 20
-
$2,705 NZD
$1,519 USD
View
Most Expensive
B
Brilliant Earth
20908654A · Oct 29
$7,834 NZD
$4,400 USD
View
20 more retailers have this diamond
Prices start from $538 NZDSave up to $7,296 NZD

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
$538 NZD