Asscher|Lab Grown|IGI

1.28ct D VVS1 Asscher Lab Grown Diamond

ID • D/VVS1 • IGI LG745519204

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG745519204

Diamond specifications and retailer prices

From £143 GBP
$191 USD
As of October 30, 2026
Save £689 GBP (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,127 GBP at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

About this 1.28ct lab-grown asscher diamond

This 1.28ct lab-grown asscher sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG745519204 or 745519204. Listed at 11 retailers as of October 29, 2026, with a 483% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle43.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG745519204
Dimensions5.87 × 5.86 × 3.95 mm
L/W Ratio1.00
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
5.87 mm5.86 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG745519204
Side View
Table 60.0%Crown 33.9°Girdle: MediumPavilion 43.9°Culet: NoneDepth 67.4%

Caratlytics Score

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A+
Exceptional
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 30
Current: £1,127 GBP|Low: £140 GBP|High: £1,403 GBP|Avg: £474 GBP|-19.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 6£143 GBP
Retailer 11£163 GBP
Retailer 10£310 GBP
Retailer 3£329 GBP
Retailer 7£353 GBP
Retailer 9£363 GBP
Retailer 2£431 GBP
Retailer 8£468 GBP
Retailer 5£569 GBP
Retailer 4£831 GBP
Brilliant Earth£1,127 GBP

33 data points across 11 retailers

11 retailers£143 GBP to £831 GBP

A+
Cheapest Retailer
-
£143 GBP
$191 USD
A
Retailer 2
-
£163 GBP
$219 USD
View
Final sale: no returns
Retailer 3
-
£169 GBP
$227 USD
View
Price last confirmed 38 days ago
A
Retailer 4
-
£310 GBP
$415 USD
View
Retailer 5
-
£353 GBP
€451 EUR
View
Price last confirmed 8 days ago
A
Retailer 6
-
£363 GBP
$486 USD
View
B+
Retailer 7
-
£431 GBP
A$889 AUD
View
B+
Retailer 8
-
£468 GBP
$627 USD
View
B+
Retailer 9
-
£569 GBP
$762 USD
View
B+
Retailer 10
-
£831 GBP
View
Most Expensive
Brilliant Earth
16608286A · Oct 16
£1,127 GBP
$1,510 USD
View
Price last confirmed 16 days ago
10 more retailers have this diamond
Prices start from £143 GBPSave up to £689 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+
1.28ct Asscher
£143 GBP