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Cushion|Lab Grown|IGI

4.23ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG784645333

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG784645333

Diamond specifications and retailer prices

From $5,825 AUD
$4,092 USD
As of November 1, 2026
Save $30,533 AUD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $36,359 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.23ct lab-grown cushion diamond

This 4.23ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784645333 or 784645333. Listed at 10 retailers as of October 31, 2026, with prices from $5,825 to $36,359, a $30,533 spread on the same certified stone. Do Amore Diamonds lists it at $36,359. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.23
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784645333
Dimensions11.05 × 8.49 × 5.69 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.05 mm8.49 mm4.23 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784645333
Side View
Table 58.0%Crown 37.4°Girdle: STK-THKPavilion 36.8°Culet: NoneDepth 67.0%

Caratlytics Score

How it works →
A+
Exceptional
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: $36,359 AUD|Low: $5,825 AUD|High: $46,566 AUD|Avg: $17,649 AUD|-21.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 4$5,825 AUD
Retailer 7$6,349 AUD
Retailer 6$6,672 AUD
Retailer 11$8,046 AUD
Retailer 9$9,565 AUD
Retailer 2$11,602 AUD
Retailer 10$11,916 AUD
Retailer 8$14,570 AUD
Retailer 5$18,663 AUD
Do Amore Diamonds$36,359 AUD
Retailer 3$38,798 AUD

27 data points across 11 retailers

10 retailers$5,825 AUD to $36,359 AUD

A+
Cheapest Retailer
-
$5,825 AUD
$4,092 USD
A
Retailer 2
-
$6,349 AUD
$4,460 USD
View
A
Retailer 3
-
$6,672 AUD
$4,687 USD
View
A
Retailer 4
-
$8,046 AUD
$5,652 USD
View
Final sale: no returns
A
Retailer 5
-
$9,565 AUD
$6,719 USD
View
A
Retailer 6
-
$11,602 AUD
€7,762 EUR
View
Retailer 7
-
$11,916 AUD
$8,370 USD
View
Price last confirmed 24 days ago
B+
Retailer 8
-
$14,570 AUD
£8,059 GBP
View
B+
Retailer 9
-
$18,663 AUD
$13,110 USD
View
Most Expensive
B
Do Amore Diamonds
27-5B800B57F · Oct 31
$36,359 AUD
$25,540 USD
View
9 more retailers have this diamond
Prices start from $5,825 AUDSave up to $30,533 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+
4.23ct Cushion
$5,825 AUD