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Cushion|Lab Grown|IGI

1.23ct D IF Cushion Lab Grown Diamond

GD • D/IF • IGI LG738504423

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG738504423

Diamond specifications and retailer prices

From $447 USD
As of November 1, 2026
Save $1,491 USD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,938 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.23ct lab-grown cushion diamond

This 1.23ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG738504423 or 738504423. Listed at 16 retailers as of October 26, 2026, with prices from $447 to $1,938, a $1,491 spread on the same certified stone. MOH London lists it at $1,938. 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

1.23
Carat
D
Color
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG738504423
Dimensions7.63 × 5.28 × 3.44 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.63 mm5.28 mm1.23 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG738504423
Side View
Table 64.0%Crown 36.1°Girdle: MED-STKPavilion 35.1°Culet: NoneDepth 65.2%

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: Nov 1
Current: $1,938 USD|Low: $447 USD|High: $2,181 USD|Avg: $1,095 USD|-11.1%
MOH London
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
November 1, 2026
Retailer 3$447 USD
Retailer 16$495 USD
Retailer 2$510 USD
Retailer 10$645 USD
Retailer 14$665 USD
Retailer 5$802 USD
Retailer 9$813 USD
Retailer 4$843 USD
Retailer 13$851 USD
Retailer 11$1,207 USD
Retailer 7$1,448 USD
Retailer 8$1,576 USD
Retailer 12$1,600 USD
Retailer 6$1,628 USD
Retailer 15$1,830 USD
MOH London$1,938 USD

43 data points across 16 retailers

16 retailers$447 USD to $1,938 USD

A
Cheapest Retailer
-
$447 USD
Final sale: no returns
Retailer 2
-
$495 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$510 USD
£401 GBP
View
A
Retailer 4
-
$645 USD
View
A
Retailer 5
-
$665 USD
View
B+
Retailer 6
-
$802 USD
View
A
Retailer 7
-
$813 USD
£640 GBP
View
B+
Retailer 8
-
$843 USD
View
A
Retailer 9
-
$851 USD
ZAR 13,747 ZAR
View
B+
Retailer 10
-
$1,207 USD
A$1,857 AUD
View
B
Retailer 11
-
$1,448 USD
£1,140 GBP
View
B
Retailer 12
-
$1,576 USD
SGD 2,130 SGD
View
B
Retailer 13
-
$1,600 USD
View
B
Retailer 14
-
$1,628 USD
View
B
Retailer 15
-
$1,830 USD
View
Most Expensive
B
MOH London
LG738504423 · Oct 26
$1,938 USD
£1,526 GBP
View
15 more retailers have this diamond
Prices start from $447 USDSave up to $1,491 USD

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
1.23ct Cushion
$447 USD