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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 $302 USD
As of October 30, 2026
Save $3,608 USD (92%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,910 USD at Brilliant Earth · As of October 30, 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 30, 2026, with prices from $302 to $3,910, a $3,608 spread on the same certified stone. Brilliant Earth lists it at $3,910. 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
Color
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: $3,910 USD|Low: $290 USD|High: $4,670 USD|Avg: $1,029 USD|-2.5%
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
Retailer 19
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Retailer 21
October 31, 2026
Retailer 21$302 USD
Retailer 5$337 USD
Retailer 6$350 USD
Retailer 7$375 USD
Retailer 9$375 USD
Retailer 20$505 USD
Retailer 18$530 USD
Retailer 17$644 USD
Retailer 2$665 USD
Retailer 13$666 USD
Retailer 16$873 USD
Retailer 19$1,151 USD
Retailer 11$1,204 USD
Retailer 12$1,204 USD
Retailer 14$1,252 USD
Retailer 8$1,367 USD
Retailer 3$1,440 USD
Retailer 10$1,463 USD
Retailer 15$1,509 USD
Retailer 4$1,519 USD
Brilliant Earth$3,910 USD

41 data points across 21 retailers

21 retailers$302 USD to $3,910 USD

A
Cheapest Retailer
-
$302 USD
A
Retailer 2
-
$337 USD
View
Final sale: no returns
A
Retailer 3
-
$350 USD
View
A
Retailer 4
-
$375 USD
View
A
Retailer 5
-
$375 USD
View
B+
Retailer 6
-
$505 USD
View
A
Retailer 7
-
$530 USD
View
A
Retailer 8
-
$644 USD
ZAR 10,398 ZAR
View
A
Retailer 9
-
$665 USD
£524 GBP
View
A
Retailer 10
-
$666 USD
€634 EUR
View
A
Retailer 11
-
$873 USD
A$1,343 AUD
View
B+
Retailer 12
-
$1,151 USD
View
B+
Retailer 13
-
$1,204 USD
SGD 1,627 SGD
View
B+
Retailer 14
-
$1,204 USD
View
B+
Retailer 15
-
$1,252 USD
View
B+
Retailer 16
-
$1,367 USD
View
B+
Retailer 17
-
$1,440 USD
View
B+
Retailer 18
-
$1,463 USD
£1,152 GBP
View
B+
Retailer 19
-
$1,509 USD
£1,188 GBP
View
B+
Retailer 20
-
$1,519 USD
View
Most Expensive
B
Brilliant Earth
20908654A · Oct 30
$3,910 USD
View
20 more retailers have this diamond
Prices start from $302 USDSave up to $3,608 USD

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
$302 USD