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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 £200 GBP
$266 USD
As of October 28, 2026
Save £3,285 GBP (94%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,484 GBP 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 £200 to £3,484, a £3,285 spread on the same certified stone. Brilliant Earth lists it at £3,484. 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 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: £483 GBP|Low: £224 GBP|High: £2,452 GBP|Avg: £799 GBP|-3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
October 29, 2026
Retailer 7£224 GBP
Retailer 3£232 GBP
Retailer 13£368 GBP
Retailer 8£412 GBP
Retailer 12£470 GBP
Retailer 1£483 GBP
Retailer 4£509 GBP
Retailer 11£636 GBP
Retailer 15£689 GBP
Retailer 5£801 GBP
Retailer 17£954 GBP
Retailer 6£1,004 GBP
Retailer 2£1,030 GBP
Retailer 10£1,103 GBP
Retailer 9£1,144 GBP
Retailer 16£1,780 GBP
Retailer 14£2,403 GBP

41 data points across 17 retailers

21 retailers£200 GBP to £3,484 GBP

A+
Cheapest Retailer
-
£200 GBP
$266 USD
A
Retailer 2
-
£224 GBP
$298 USD
View
Final sale: no returns
A
Retailer 3
-
£232 GBP
$309 USD
View
A
Retailer 4
-
£248 GBP
$330 USD
View
A
Retailer 5
-
£368 GBP
$490 USD
View
A
Retailer 6
-
£412 GBP
$548 USD
View
A
Retailer 7
-
£470 GBP
ZAR 10,120 ZAR
View
A
Retailer 8
-
£483 GBP
View
A
Retailer 9
-
£509 GBP
$678 USD
View
A
Retailer 10
-
£636 GBP
A$1,304 AUD
View
A
Retailer 11
-
£689 GBP
$917 USD
View
A
Retailer 12
-
£801 GBP
$1,067 USD
View
A
Retailer 13
-
£880 GBP
$1,172 USD
View
A
Retailer 14
-
£954 GBP
$1,270 USD
View
B+
Retailer 15
-
£1,004 GBP
$1,337 USD
View
B+
Retailer 16
-
£1,030 GBP
SGD 1,854 SGD
View
B+
Retailer 17
-
£1,103 GBP
View
Retailer 18
-
£1,144 GBP
A$2,343 AUD
View
Price last confirmed 24 days ago
B
Retailer 19
-
£1,780 GBP
$2,370 USD
View
Retailer 20
-
£2,403 GBP
$3,200 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
22138312Y · Oct 28
£3,484 GBP
$4,640 USD
View
20 more retailers have this diamond
Prices start from £200 GBPSave up to £3,285 GBP

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
£200 GBP