CaratHunter
Plans
Cushion|Lab Grown|IGI

4.29ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG780665785

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG780665785

Diamond specifications and retailer prices

From $5,724 AUD
$4,021 USD
As of October 30, 2026
Save $29,937 AUD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $35,661 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.29ct lab-grown cushion diamond

This 4.29ct 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 LG780665785 or 780665785. Listed at 11 retailers as of October 30, 2026, with prices from $5,724 to $35,661, a $29,937 spread on the same certified stone. Do Amore Diamonds lists it at $35,661. 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

4.29
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780665785
Dimensions10.81 × 8.72 × 5.69 mm
L/W Ratio1.24
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
10.81 mm8.72 mm4.29 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780665785
Side View
Table 62.0%Crown 34.7°Girdle: STK-THKPavilion 35.6°Culet: NoneDepth 65.3%

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: Oct 30
Current: $35,661 AUD|Low: $5,724 AUD|High: $47,207 AUD|Avg: $16,011 AUD|-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$5,724 AUD
Retailer 7$6,008 AUD
Retailer 6$6,798 AUD
Retailer 11$8,154 AUD
Retailer 10$9,692 AUD
Retailer 2$11,359 AUD
Retailer 3$12,190 AUD
Retailer 8$14,290 AUD
Retailer 9$16,493 AUD
Retailer 5$18,920 AUD
Do Amore Diamonds$35,661 AUD

29 data points across 11 retailers

11 retailers$5,724 AUD to $35,661 AUD

A+
Cheapest Retailer
-
$5,724 AUD
$4,021 USD
A
Retailer 2
-
$6,008 AUD
$4,220 USD
View
A
Retailer 3
-
$6,798 AUD
$4,775 USD
View
A
Retailer 4
-
$8,154 AUD
$5,728 USD
View
Final sale: no returns
A
Retailer 5
-
$9,692 AUD
$6,808 USD
View
A
Retailer 6
-
$11,359 AUD
€7,599 EUR
View
Retailer 7
-
$12,190 AUD
$8,563 USD
View
Price last confirmed 82 days ago
B+
Retailer 8
-
$14,290 AUD
£7,904 GBP
View
B+
Retailer 9
-
$16,493 AUD
$11,585 USD
View
B+
Retailer 10
-
$18,920 AUD
$13,290 USD
View
Most Expensive
B
Do Amore Diamonds
27-BE0FC0767 · Oct 31
$35,661 AUD
$25,050 USD
View
10 more retailers have this diamond
Prices start from $5,724 AUDSave up to $29,937 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+
4.29ct Cushion
$5,724 AUD