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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 €400 EUR
$447 USD
As of November 1, 2026
Save €1,335 EUR (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,735 EUR 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 €400 to €1,735, a €1,335 spread on the same certified stone. MOH London lists it at €1,735. 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: €1,735 EUR|Low: €400 EUR|High: €1,952 EUR|Avg: €981 EUR|-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 2, 2026
Retailer 3€400 EUR
Retailer 16€443 EUR
Retailer 10€456 EUR
Retailer 11€577 EUR
Retailer 14€595 EUR
Retailer 5€718 EUR
Retailer 9€722 EUR
Retailer 4€755 EUR
Retailer 2€764 EUR
Retailer 12€1,080 EUR
Retailer 7€1,296 EUR
Retailer 8€1,411 EUR
Retailer 13€1,432 EUR
Retailer 6€1,457 EUR
Retailer 15€1,638 EUR
MOH London€1,735 EUR

42 data points across 16 retailers

16 retailers€400 EUR to €1,735 EUR

A
Cheapest Retailer
-
€400 EUR
$447 USD
Final sale: no returns
Retailer 2
-
€443 EUR
$495 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
€456 EUR
£401 GBP
View
A
Retailer 4
-
€577 EUR
$645 USD
View
A
Retailer 5
-
€595 EUR
$665 USD
View
B+
Retailer 6
-
€718 EUR
$802 USD
View
A
Retailer 7
-
€722 EUR
£635 GBP
View
B+
Retailer 8
-
€755 EUR
$843 USD
View
A
Retailer 9
-
€764 EUR
ZAR 13,796 ZAR
View
B+
Retailer 10
-
€1,080 EUR
A$1,857 AUD
View
B
Retailer 11
-
€1,296 EUR
£1,140 GBP
View
B
Retailer 12
-
€1,411 EUR
SGD 2,130 SGD
View
B
Retailer 13
-
€1,432 EUR
$1,600 USD
View
B
Retailer 14
-
€1,457 EUR
$1,628 USD
View
B
Retailer 15
-
€1,638 EUR
$1,830 USD
View
Most Expensive
B
MOH London
LG738504423 · Oct 26
€1,735 EUR
£1,526 GBP
View
15 more retailers have this diamond
Prices start from €400 EURSave up to €1,335 EUR

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
€400 EUR