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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 $637 AUD
As of November 4, 2026
Save $2,122 AUD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,759 AUD at MOH London · As of November 3, 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 November 3, 2026, with prices from $637 to $2,759, a $2,122 spread on the same certified stone. MOH London lists it at $2,759. 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
Colour
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 4
Current: $2,759 AUD|Low: $637 AUD|High: $2,792 AUD|Avg: $1,534 AUD|-1.2%
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 5, 2026
Retailer 3$637 AUD
Retailer 16$706 AUD
Retailer 10$724 AUD
Retailer 12$919 AUD
Retailer 14$948 AUD
Retailer 5$1,143 AUD
Retailer 2$1,148 AUD
Retailer 4$1,202 AUD
Retailer 11$1,216 AUD
Retailer 9$1,722 AUD
Retailer 7$2,063 AUD
Retailer 8$2,247 AUD
Retailer 13$2,281 AUD
Retailer 6$2,319 AUD
Retailer 15$2,607 AUD
MOH London$2,759 AUD

41 data points across 16 retailers

16 retailers$637 AUD to $2,759 AUD

A
Cheapest Retailer
-
$637 AUD
Final sale: no returns
Retailer 2
-
$706 AUD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$724 AUD
View
A
Retailer 4
-
$919 AUD
View
A
Retailer 5
-
$948 AUD
View
B+
Retailer 6
-
$1,143 AUD
View
A
Retailer 7
-
$1,148 AUD
View
B+
Retailer 8
-
$1,202 AUD
View
A
Retailer 9
-
$1,216 AUD
View
B+
Retailer 10
-
$1,722 AUD
View
B
Retailer 11
-
$2,063 AUD
View
B
Retailer 12
-
$2,247 AUD
View
Retailer 13
-
$2,281 AUD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$2,319 AUD
View
B
Retailer 15
-
$2,607 AUD
View
Most Expensive
B
MOH London
LG738504423 · Nov 3
$2,759 AUD
£1,524 GBP
View
15 more retailers have this diamond
Prices start from $637 AUDSave up to $2,122 AUD

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
$637 AUD