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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 $522 NZD
HK$2,300 HKD
As of November 1, 2026
Save $1,314 NZD (72%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,836 NZD 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 9 retailers as of October 29, 2026, with prices from $522 to $1,836, a $1,314 spread on the same certified stone. MOH London lists it at $1,836. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,836 NZD|Low: $522 NZD|High: $1,836 NZD|Avg: $988 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 8$522 NZD
Retailer 3$545 NZD
Retailer 5$768 NZD
Retailer 9$788 NZD
Retailer 4$840 NZD
Retailer 6$907 NZD
Retailer 7$1,125 NZD
Retailer 2$1,588 NZD
Retailer 10$1,631 NZD
MOH London$1,836 NZD

5 data points across 10 retailers

9 retailers$522 NZD to $1,836 NZD

A
Cheapest Retailer
-
$522 NZD
HK$2,300 HKD
A
Retailer 2
-
$545 NZD
£242 GBP
View
A
Retailer 3
-
$768 NZD
€412 EUR
View
A
Retailer 4
-
$788 NZD
$444 USD
View
A
Retailer 5
-
$840 NZD
£373 GBP
View
A
Retailer 6
-
$907 NZD
$511 USD
View
B+
Retailer 7
-
$1,125 NZD
$634 USD
View
B+
Retailer 8
-
$1,588 NZD
$895 USD
View
Most Expensive
B
MOH London
LG777630862 · Oct 29
$1,836 NZD
£815 GBP
View
8 more retailers have this diamond
Prices start from $522 NZDSave up to $1,314 NZD

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
$522 NZD