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Asscher|Lab Grown|IGI

1.78ct D VS1 Asscher Lab Grown Diamond

ID • D/VS1 • IGI LG700526626

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG700526626

Diamond specifications and retailer prices

From £225 GBP
$300 USD
As of October 27, 2026
Save £1,277 GBP (85%) vs most expensive(unlock to see where)
23 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 LG700526626 or 700526626. Listed at 23 retailers as of October 27, 2026, with prices from £225 to £1,502, a £1,277 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
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700526626
Dimensions6.59 × 6.58 × 4.47 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
6.59 mm6.58 mm1.78 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700526626
Side View
Table 64.0%Crown 36.5°Girdle: MediumPavilion 40.4°Culet: NoneDepth 67.9%

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 27
Current: £1,502 GBP|Low: £222 GBP|High: £1,682 GBP|Avg: £658 GBP|-10.7%
Brilliant Earth
Retailer 2
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October 29, 2026
Retailer 4£225 GBP
Retailer 11£252 GBP
Retailer 21£261 GBP
Retailer 6£279 GBP
Retailer 7£279 GBP
Retailer 3£312 GBP
Retailer 20£398 GBP
Retailer 13£416 GBP
Retailer 14£457 GBP
Retailer 19£480 GBP
Retailer 2£494 GBP
Retailer 10£535 GBP
Retailer 9£538 GBP
Retailer 18£651 GBP
Retailer 22£858 GBP
Retailer 5£898 GBP
Retailer 12£934 GBP
Retailer 23£1,070 GBP
Retailer 8£1,074 GBP
Retailer 17£1,125 GBP
Retailer 15£1,136 GBP
Retailer 16£1,301 GBP
Brilliant Earth£1,502 GBP

34 data points across 23 retailers

23 retailers£225 GBP to £1,502 GBP

A
Cheapest Retailer
-
£225 GBP
$300 USD
A
Retailer 2
-
£252 GBP
$335 USD
View
Final sale: no returns
A
Retailer 3
-
£261 GBP
$348 USD
View
A
Retailer 4
-
£279 GBP
$372 USD
View
A
Retailer 5
-
£279 GBP
$372 USD
View
A
Retailer 6
-
£312 GBP
View
Price last confirmed 12 days ago
A
Retailer 7
-
£398 GBP
$530 USD
View
A
Retailer 8
-
£416 GBP
€528 EUR
View
A
Retailer 9
-
£457 GBP
$608 USD
View
A
Retailer 10
-
£480 GBP
ZAR 10,324 ZAR
View
A
Retailer 11
-
£494 GBP
View
B+
Retailer 12
-
£535 GBP
$713 USD
View
B+
Retailer 13
-
£538 GBP
$717 USD
View
B+
Retailer 14
-
£651 GBP
A$1,334 AUD
View
B
Retailer 15
-
£858 GBP
$1,143 USD
View
B
Retailer 16
-
£898 GBP
$1,196 USD
View
B
Retailer 17
-
£934 GBP
$1,243 USD
View
B
Retailer 18
-
£1,070 GBP
$1,425 USD
View
Price last confirmed 8 days ago
B
Retailer 19
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£1,074 GBP
$1,430 USD
View
B
Retailer 20
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£1,125 GBP
View
B
Retailer 21
-
£1,136 GBP
$1,513 USD
View
B
Retailer 22
-
£1,301 GBP
$1,733 USD
View
Most Expensive
B
Brilliant Earth
13893045A · Oct 28
£1,502 GBP
$2,000 USD
View
22 more retailers have this diamond
Prices start from £225 GBPSave up to £1,277 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
£225 GBP