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Asscher|Lab Grown|IGI

1.28ct D FL Asscher Lab Grown Diamond

VG • D/FL • IGI LG836619954

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG836619954

Diamond specifications and retailer prices

From £346 GBP
$464 USD
As of October 30, 2026
Save £1,423 GBP (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,769 GBP at Brilliant Earth · As of October 30, 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 FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG836619954 or 836619954. Listed at 16 retailers as of October 30, 2026, with prices from £346 to £1,769, a £1,423 spread on the same certified stone. Brilliant Earth lists it at £1,769. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836619954
Dimensions6.05 × 6.04 × 3.86 mm
L/W Ratio1.00
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
6.05 mm6.04 mm1.28 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836619954
Side View
Table 64.0%Crown 33.6°Girdle: MediumPavilion 38.9°Culet: NoneDepth 63.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,769 GBP|Low: £346 GBP|High: £2,538 GBP|Avg: £1,076 GBP|-30.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 15£346 GBP
Retailer 10£396 GBP
Retailer 4£557 GBP
Retailer 2£578 GBP
Retailer 12£603 GBP
Retailer 5£607 GBP
Retailer 11£631 GBP
Retailer 14£659 GBP
Retailer 6£675 GBP
Retailer 9£1,075 GBP
Retailer 16£1,219 GBP
Retailer 8£1,258 GBP
Retailer 3£1,407 GBP
Retailer 7£1,410 GBP
Retailer 13£1,416 GBP
Brilliant Earth£1,769 GBP

40 data points across 16 retailers

16 retailers£346 GBP to £1,769 GBP

A
Cheapest Retailer
-
£346 GBP
$464 USD
Final sale: no returns
A
Retailer 2
-
£396 GBP
View
A
Retailer 3
-
£557 GBP
$746 USD
View
A
Retailer 4
-
£578 GBP
$775 USD
View
B+
Retailer 5
-
£603 GBP
€770 EUR
View
B+
Retailer 6
-
£607 GBP
$813 USD
View
B+
Retailer 7
-
£631 GBP
View
B+
Retailer 8
-
£659 GBP
ZAR 14,267 ZAR
View
B+
Retailer 9
-
£675 GBP
$905 USD
View
B
Retailer 10
-
£1,075 GBP
$1,441 USD
View
B
Retailer 11
-
£1,219 GBP
SGD 2,208 SGD
View
B
Retailer 12
-
£1,258 GBP
$1,686 USD
View
Retailer 13
-
£1,407 GBP
$1,885 USD
View
Price last confirmed 12 days ago
B
Retailer 14
-
£1,410 GBP
$1,889 USD
View
B
Retailer 15
-
£1,416 GBP
View
Most Expensive
B
Brilliant Earth
21589776A · Oct 30
£1,769 GBP
$2,370 USD
View
15 more retailers have this diamond
Prices start from £346 GBPSave up to £1,423 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
£346 GBP