Asscher|Lab Grown|IGI

1.78ct D VS1 Asscher Lab Grown Diamond

ID • D/VS1 • IGI LG690502574

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG690502574

Diamond specifications and retailer prices

From £252 GBP

$335 USD

As of October 28, 2026

Save £1,250 GBP (83%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: £1,502 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG690502574 or 690502574. Listed at 18 retailers as of October 28, 2026, with prices from £252 to £1,502, a £1,250 spread on the same certified stone. Brilliant Earth lists it at £1,502. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.2°

Pavilion angle40.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG690502574

Dimensions6.65 × 6.64 × 4.41 mm

L/W Ratio1.00

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG690502574

Side View

Caratlytics Score

How it works →

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: £1,502 GBP|Low: £222 GBP|High: £1,690 GBP|Avg: £734 GBP|-11.1%

Brilliant Earth

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October 29, 2026

Retailer 6£252 GBP

Retailer 16£279 GBP

Retailer 18£312 GBP

Retailer 3£398 GBP

Retailer 12£416 GBP

Retailer 8£457 GBP

Retailer 14£480 GBP

Retailer 2£494 GBP

Retailer 5£535 GBP

Retailer 4£538 GBP

Retailer 13£651 GBP

Retailer 11£893 GBP

Retailer 7£934 GBP

Retailer 17£1,070 GBP

Retailer 19£1,074 GBP

Retailer 15£1,121 GBP

Retailer 9£1,136 GBP

Retailer 10£1,301 GBP

Brilliant Earth£1,502 GBP

38 data points across 19 retailers

18 retailers£252 GBP to £1,502 GBP

Cheapest Retailer

£252 GBP

$335 USD

Final sale: no returns

Retailer 2

£279 GBP

$372 USD

View

Retailer 3

£312 GBP

View

Price last confirmed 12 days ago

Retailer 4

£398 GBP

$530 USD

View

Retailer 5

£416 GBP

€528 EUR

View

Retailer 6

£457 GBP

$608 USD

View

Retailer 7

£480 GBP

ZAR 10,324 ZAR

View

Retailer 8

£494 GBP

View

B+

Retailer 9

£535 GBP

$713 USD

View

B+

Retailer 10

£538 GBP

$717 USD

View

B+

Retailer 11

£651 GBP

A$1,334 AUD

View

Retailer 12

£934 GBP

$1,243 USD

View

Retailer 13

£1,070 GBP

$1,425 USD

View

Price last confirmed 8 days ago

Retailer 14

£1,074 GBP

$1,430 USD

View

Retailer 15

£1,121 GBP

View

Retailer 16

£1,136 GBP

$1,513 USD

View

Retailer 17

£1,301 GBP

$1,733 USD

View

Most Expensive

Brilliant Earth

13456448A · Oct 28

£1,502 GBP

$2,000 USD

View

17 more retailers have this diamond

Prices start from £252 GBPSave up to £1,250 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.

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1.78ct Asscher

£252 GBP