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Cushion|Lab Grown|IGI

4.23ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG784644157

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG784644157

Diamond specifications and retailer prices

From $7,044 NZD
$3,970 USD
As of October 30, 2026
Save $36,799 NZD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $43,843 NZD 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 LG784644157 or 784644157. Listed at 11 retailers as of October 30, 2026, with prices from $7,044 to $43,843, a $36,799 spread on the same certified stone. Do Amore Diamonds lists it at $43,843. 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 angle33.6°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784644157
Dimensions10.42 × 8.68 × 5.82 mm
L/W Ratio1.20
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
10.42 mm8.68 mm4.23 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784644157
Side View
Table 60.0%Crown 33.6°Girdle: THK-VTKPavilion 36.2°Culet: NoneDepth 67.1%

Caratlytics Score

How it works →
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: Oct 30
Current: $43,843 NZD|Low: $7,044 NZD|High: $58,037 NZD|Avg: $19,660 NZD|-24.5%
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$7,044 NZD
Retailer 7$7,381 NZD
Retailer 6$8,259 NZD
Retailer 3$10,028 NZD
Retailer 10$11,922 NZD
Retailer 2$13,960 NZD
Retailer 11$14,851 NZD
Retailer 8$17,574 NZD
Retailer 9$20,276 NZD
Retailer 5$23,261 NZD
Do Amore Diamonds$43,843 NZD

29 data points across 11 retailers

11 retailers$7,044 NZD to $43,843 NZD

A
Cheapest Retailer
-
$7,044 NZD
$3,970 USD
A
Retailer 2
-
$7,381 NZD
$4,160 USD
View
A
Retailer 3
-
$8,259 NZD
$4,655 USD
View
A
Retailer 4
-
$10,028 NZD
$5,652 USD
View
Final sale: no returns
A
Retailer 5
-
$11,922 NZD
$6,719 USD
View
A
Retailer 6
-
$13,960 NZD
€7,493 EUR
View
Retailer 7
-
$14,851 NZD
$8,370 USD
View
Price last confirmed 24 days ago
B+
Retailer 8
-
$17,574 NZD
£7,799 GBP
View
B+
Retailer 9
-
$20,276 NZD
$11,428 USD
View
B+
Retailer 10
-
$23,261 NZD
$13,110 USD
View
Most Expensive
B
Do Amore Diamonds
27-9912B3267 · Oct 31
$43,843 NZD
$24,710 USD
View
10 more retailers have this diamond
Prices start from $7,044 NZDSave up to $36,799 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
4.23ct Cushion
$7,044 NZD