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Cushion|Lab Grown|IGI

4.23ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG800662995

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800662995

Diamond specifications and retailer prices

From $8,156 AUD
$5,729 USD
As of October 31, 2026
Save $41,304 AUD (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $49,460 AUD at With Clarity · As of October 31, 2026
View at With Clarity

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 LG800662995 or 800662995. Listed at 20 retailers as of October 31, 2026, with prices from $8,156 to $49,460, a $41,304 spread on the same certified stone. With Clarity lists it at $49,460. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800662995
Dimensions11.41 × 8.58 × 5.59 mm
L/W Ratio1.33
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.41 mm8.58 mm4.23 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800662995
Side View
Table 62.0%Crown 35°Girdle: MED-STKPavilion 36.9°Culet: NoneDepth 65.2%

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 31
Current: $12,193 AUD|Low: $7,874 AUD|High: $48,522 AUD|Avg: $18,506 AUD|-0.2%
Retailer 1
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
Retailer 17
Retailer 18
Retailer 19
With Clarity
November 1, 2026
Retailer 16$8,156 AUD
Retailer 6$9,065 AUD
Retailer 4$9,615 AUD
Retailer 5$9,730 AUD
Retailer 19$9,737 AUD
Retailer 7$9,841 AUD
Retailer 13$11,158 AUD
Retailer 1$12,193 AUD
Retailer 3$13,864 AUD
Retailer 12$15,277 AUD
Retailer 2$16,482 AUD
Retailer 15$19,920 AUD
Retailer 14$20,726 AUD
Retailer 17$21,802 AUD
Retailer 8$25,118 AUD
Retailer 9$26,255 AUD
Retailer 10$27,090 AUD
Retailer 18$28,641 AUD
Retailer 11$34,074 AUD
With Clarity$48,522 AUD

40 data points across 20 retailers

20 retailers$8,156 AUD to $49,460 AUD

A
Cheapest Retailer
-
$8,156 AUD
$5,729 USD
A
Retailer 2
-
$9,065 AUD
CA$8,844 CAD
View
A
Retailer 3
-
$9,615 AUD
$6,754 USD
View
A
Retailer 4
-
$9,730 AUD
$6,835 USD
View
Retailer 5
-
$9,737 AUD
$6,840 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
$9,841 AUD
$6,913 USD
View
A
Retailer 7
-
$11,158 AUD
$7,838 USD
View
Final sale: no returns
A
Retailer 8
-
$12,193 AUD
£6,744 GBP
View
B+
Retailer 9
-
$13,864 AUD
£7,668 GBP
View
B+
Retailer 10
-
$15,277 AUD
€10,220 EUR
View
B+
Retailer 11
-
$16,482 AUD
$11,578 USD
View
B+
Retailer 12
-
$19,920 AUD
£11,018 GBP
View
B+
Retailer 13
-
$20,726 AUD
ZAR 235,196 ZAR
View
B
Retailer 14
-
$21,802 AUD
$15,315 USD
View
B
Retailer 15
-
$25,118 AUD
$17,644 USD
View
B+
Retailer 16
-
$26,255 AUD
$18,443 USD
View
B
Retailer 17
-
$27,090 AUD
$19,029 USD
View
B
Retailer 18
-
$28,641 AUD
$20,119 USD
View
B
Retailer 19
-
$34,074 AUD
$23,935 USD
View
Most Expensive
B
With Clarity
800662995 · Oct 31
$49,460 AUD
$34,743 USD
View
19 more retailers have this diamond
Prices start from $8,156 AUDSave up to $41,304 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
$8,156 AUD