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Cushion|Lab Grown|IGI

1.44ct D SI1 Cushion Lab Grown Diamond

GD • D/SI1 • IGI LG566398198

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG566398198

Diamond specifications and retailer prices

From £387 GBP
$518 USD
As of October 30, 2026
Save £1,195 GBP (76%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,582 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.44ct lab-grown cushion diamond

This 1.44ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG566398198 or 566398198. Listed at 8 retailers as of October 29, 2026, with prices from £387 to £1,582, a £1,195 spread on the same certified stone. MOH London lists it at £1,582. 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

1.44
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle31.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG566398198
Dimensions6.60 × 6.42 × 3.85 mm
L/W Ratio1.03
Girdle conditionFaceted
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
6.60 mm6.42 mm1.44 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG566398198
Side View
Table 60.0%Crown 32.1°Girdle: MED-THKPavilion 31.8°Culet: NoneDepth 60.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,582 GBP|Low: £276 GBP|High: £1,592 GBP|Avg: £712 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 7£387 GBP
Retailer 8£518 GBP
Retailer 5£519 GBP
Retailer 3£654 GBP
Retailer 6£669 GBP
Retailer 2£710 GBP
Retailer 4£765 GBP
MOH London£1,582 GBP

42 data points across 8 retailers

8 retailers£387 GBP to £1,582 GBP

B+
Cheapest Retailer
-
£387 GBP
$518 USD
Final sale: no returns
B
Retailer 2
-
£518 GBP
$694 USD
View
B+
Retailer 3
-
£519 GBP
$695 USD
View
B
Retailer 4
-
£654 GBP
€835 EUR
View
B
Retailer 5
-
£669 GBP
$897 USD
View
B
Retailer 6
-
£710 GBP
View
Retailer 7
-
£765 GBP
$1,025 USD
View
Price last confirmed 12 days ago
Most Expensive
B
MOH London
LG566398198 · Oct 29
£1,582 GBP
View
7 more retailers have this diamond
Prices start from £387 GBPSave up to £1,195 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.

B+
1.44ct Cushion
£387 GBP