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Cushion|Lab Grown|IGI

1.48ct D SI1 Cushion Lab Grown Diamond

EX • D/SI1 • IGI LG777630862

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG777630862

Diamond specifications and retailer prices

From £220 GBP
HK$2,300 HKD
As of October 31, 2026
Save £553 GBP (72%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £772 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.48ct lab-grown cushion diamond

This 1.48ct 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 top-tier cut grade and certified by IGI LG777630862 or 777630862. Listed at 8 retailers as of October 29, 2026, with prices from £220 to £772, a £553 spread on the same certified stone. MOH London lists it at £772. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.48
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG777630862
Dimensions6.80 × 6.78 × 4.33 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.80 mm6.78 mm1.48 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG777630862
Side View
Table 59.0%Crown 35.9°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 63.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £772 GBP|Low: £220 GBP|High: £772 GBP|Avg: £407 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 7£220 GBP
Retailer 4£230 GBP
Retailer 2£323 GBP
Retailer 8£331 GBP
Retailer 3£350 GBP
Retailer 5£381 GBP
Retailer 6£473 GBP
Retailer 9£686 GBP
MOH London£772 GBP

4 data points across 9 retailers

8 retailers£220 GBP to £772 GBP

A
Cheapest Retailer
-
£220 GBP
HK$2,300 HKD
A
Retailer 2
-
£230 GBP
View
A
Retailer 3
-
£323 GBP
€412 EUR
View
A
Retailer 4
-
£331 GBP
$444 USD
View
A
Retailer 5
-
£350 GBP
View
A
Retailer 6
-
£381 GBP
$511 USD
View
B+
Retailer 7
-
£473 GBP
$634 USD
View
Most Expensive
B
MOH London
LG777630862 · Oct 29
£772 GBP
View
7 more retailers have this diamond
Prices start from £220 GBPSave up to £553 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
1.48ct Cushion
£220 GBP