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Asscher|Lab Grown|IGI

1.28ct D IF Asscher Lab Grown Diamond

ID • D/IF • IGI LG798615445

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG798615445

Diamond specifications and retailer prices

From £363 GBP
$486 USD
As of November 1, 2026
Save £1,331 GBP (79%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,694 GBP at Brilliant Earth · As of October 26, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG798615445 or 798615445. Listed at 5 retailers as of October 26, 2026, with prices from £363 to £1,694, a £1,331 spread on the same certified stone. Brilliant Earth lists it at £1,694. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG798615445
Dimensions6.02 × 6.01 × 4.02 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
6.02 mm6.01 mm1.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG798615445
Side View
Table 62.0%Crown 35.7°Girdle: MediumPavilion 42°Culet: NoneDepth 66.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £1,694 GBP|Low: £346 GBP|High: £1,791 GBP|Avg: £742 GBP|-4.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 4£363 GBP
Retailer 5£381 GBP
Retailer 3£395 GBP
Retailer 6£446 GBP
Retailer 7£471 GBP
Retailer 2£856 GBP
Retailer 8£881 GBP
Retailer 9£1,148 GBP
Brilliant Earth£1,694 GBP

24 data points across 9 retailers

5 retailers£363 GBP to £1,694 GBP

A
Cheapest Retailer
-
£363 GBP
$486 USD
Retailer 2
-
£381 GBP
€486 EUR
View
Price last confirmed 8 days ago
A
Retailer 3
-
£395 GBP
$529 USD
View
B+
Retailer 4
-
£856 GBP
View
Most Expensive
B
Brilliant Earth
19050249A · Oct 26
£1,694 GBP
$2,270 USD
View
4 more retailers have this diamond
Prices start from £363 GBPSave up to £1,331 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
£363 GBP