Asscher|Lab Grown|IGI

3.78ct E VS1 Asscher Lab Grown Diamond

ID • E/VS1 • IGI LG674523052

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG674523052

Diamond specifications and retailer prices

From £1,673 GBP
As of October 29, 2026
8 retailers carry this diamond
Most expensive: £3,381 GBP at Brilliant Earth · As of October 8, 2026
View at Brilliant Earth

About this 3.78ct lab-grown asscher diamond

This 3.78ct lab-grown asscher sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG674523052 or 674523052. Listed at 8 retailers as of October 29, 2026. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.78
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG674523052
Dimensions8.66 × 8.56 × 5.79 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.66 mm8.56 mm3.78 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG674523052
Side View
Table 65.0%Crown 38°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 67.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: £3,381 GBP|Low: £675 GBP|High: £4,142 GBP|Avg: £2,504 GBP|-14.5%
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
October 8, 2026
Retailer 9£675 GBP
Retailer 12£738 GBP
Retailer 3£860 GBP
Retailer 4£995 GBP
Retailer 7£1,067 GBP
Retailer 5£1,349 GBP
Retailer 2£1,809 GBP
Retailer 13£2,148 GBP
Retailer 8£2,368 GBP
Retailer 14£2,586 GBP
Brilliant Earth£3,381 GBP
Retailer 11£3,476 GBP
Retailer 6£4,014 GBP
Retailer 10£4,142 GBP

7 data points across 14 retailers

8 retailers

Retailer 1
-
£738 GBP
Price last confirmed 23 days ago
Retailer 2
-
£995 GBP
$1,333 USD
View
Price last confirmed 23 days ago
B+
Retailer 3
-
£1,673 GBP
View
Retailer 4
-
£1,809 GBP
A$3,729 AUD
View
Price last confirmed 22 days ago
Retailer 5
-
£2,148 GBP
SGD 3,890 SGD
View
Price last confirmed 23 days ago
Retailer 6
-
£2,368 GBP
View
Price last confirmed 22 days ago
Retailer 7
-
£2,586 GBP
$3,465 USD
View
Price last confirmed 23 days ago
Most Expensive
Brilliant Earth
21720407Y · Oct 8
£3,381 GBP
$4,530 USD
View
Price last confirmed 22 days ago
7 more retailers have this diamond
Prices start from £1,673 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.

B+
3.78ct Asscher
£1,673 GBP