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Asscher|Lab Grown|IGI

1.78ct D VS1 Asscher Lab Grown Diamond

EX • D/VS1 • IGI LG729579552

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG729579552

Diamond specifications and retailer prices

From £399 GBP
$531 USD
As of October 28, 2026
Save £564 GBP (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £962 GBP at MOH London · As of October 29, 2026
View at MOH London

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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG729579552 or 729579552. Listed at 6 retailers as of October 28, 2026, with prices from £399 to £962, a £564 spread on the same certified stone. MOH London lists it at £962. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729579552
Dimensions6.69 × 6.68 × 4.44 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.69 mm6.68 mm1.78 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729579552
Side View
Table 58.0%Crown 32.7°Girdle: Slightly ThickPavilion 41.1°Culet: NoneDepth 66.5%

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 28
Current: £962 GBP|Low: £380 GBP|High: £968 GBP|Avg: £580 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 3£399 GBP
Retailer 4£445 GBP
Retailer 2£454 GBP
Retailer 5£523 GBP
Retailer 6£806 GBP
MOH London£962 GBP

41 data points across 6 retailers

6 retailers£399 GBP to £962 GBP

B+
Cheapest Retailer
-
£399 GBP
$531 USD
A
Retailer 2
-
£445 GBP
$592 USD
View
A
Retailer 3
-
£454 GBP
View
B+
Retailer 4
-
£523 GBP
$697 USD
View
B+
Retailer 5
-
£806 GBP
$1,074 USD
View
Most Expensive
B
MOH London
LG729579552 · Oct 29
£962 GBP
View
5 more retailers have this diamond
Prices start from £399 GBPSave up to £564 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
£399 GBP