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Asscher|Lab Grown|IGI

1.78ct E IF Asscher Lab Grown Diamond

ID • E/IF • IGI LG749551270

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG749551270

Diamond specifications and retailer prices

From $266 USD
As of October 28, 2026
Save $4,374 USD (94%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,640 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.78ct lab-grown asscher diamond

This 1.78ct lab-grown asscher 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 LG749551270 or 749551270. Listed at 21 retailers as of October 28, 2026, with prices from $266 to $4,640, a $4,374 spread on the same certified stone. Brilliant Earth lists it at $4,640. 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 angle25.6°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749551270
Dimensions6.78 × 6.69 × 4.27 mm
L/W Ratio1.01
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
6.78 mm6.69 mm1.78 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749551270
Side View
Table 60.0%Crown 25.6°Girdle: MediumPavilion 42.1°Culet: NoneDepth 63.8%

Caratlytics Score

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A+
Exceptional
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 28
Current: $1,469 USD|Low: $298 USD|High: $3,265 USD|Avg: $1,064 USD|-5.2%
Retailer 1
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
October 29, 2026
Retailer 7$298 USD
Retailer 3$309 USD
Retailer 13$490 USD
Retailer 8$548 USD
Retailer 11$626 USD
Retailer 12$642 USD
Retailer 4$678 USD
Retailer 10$848 USD
Retailer 15$917 USD
Retailer 5$1,067 USD
Retailer 17$1,270 USD
Retailer 6$1,337 USD
Retailer 2$1,372 USD
Retailer 1$1,469 USD
Retailer 9$1,523 USD
Retailer 16$2,370 USD
Retailer 14$3,200 USD

41 data points across 17 retailers

21 retailers$266 USD to $4,640 USD

A+
Cheapest Retailer
-
$266 USD
A
Retailer 2
-
$298 USD
View
Final sale: no returns
A
Retailer 3
-
$309 USD
View
A
Retailer 4
-
$330 USD
View
A
Retailer 5
-
$490 USD
View
A
Retailer 6
-
$548 USD
View
A
Retailer 7
-
$626 USD
ZAR 10,120 ZAR
View
A
Retailer 8
-
$642 USD
£505 GBP
View
A
Retailer 9
-
$678 USD
View
A
Retailer 10
-
$848 USD
A$1,304 AUD
View
A
Retailer 11
-
$917 USD
View
A
Retailer 12
-
$1,067 USD
View
A
Retailer 13
-
$1,172 USD
View
A
Retailer 14
-
$1,270 USD
View
B+
Retailer 15
-
$1,337 USD
View
B+
Retailer 16
-
$1,372 USD
SGD 1,854 SGD
View
B+
Retailer 17
-
$1,469 USD
£1,157 GBP
View
B+
Retailer 18
-
$1,523 USD
A$2,343 AUD
View
Price last confirmed 24 days ago
B
Retailer 19
-
$2,370 USD
View
B
Retailer 20
-
$3,200 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Brilliant Earth
22138312Y · Oct 28
$4,640 USD
View
20 more retailers have this diamond
Prices start from $266 USDSave up to $4,374 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 Asscher
$266 USD