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Cushion|Lab Grown|IGI

4.30ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG780666201

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG780666201

Diamond specifications and retailer prices

From $5,737 AUD
$4,030 USD
As of October 30, 2026
Save $29,995 AUD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $35,732 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.3ct lab-grown cushion diamond

This 4.3ct 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 LG780666201 or 780666201. Listed at 11 retailers as of October 30, 2026, with prices from $5,737 to $35,732, a $29,995 spread on the same certified stone. Do Amore Diamonds lists it at $35,732. 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

4.30
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780666201
Dimensions10.90 × 8.55 × 5.81 mm
L/W Ratio1.27
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
10.90 mm8.55 mm4.30 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780666201
Side View
Table 64.0%Crown 35.8°Girdle: THK-VTKPavilion 39°Culet: NoneDepth 68.0%

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: $35,732 AUD|Low: $5,737 AUD|High: $47,306 AUD|Avg: $16,144 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 30, 2026
Retailer 2$5,737 AUD
Retailer 7$6,022 AUD
Retailer 5$6,828 AUD
Retailer 11$8,174 AUD
Retailer 10$9,715 AUD
Retailer 6$11,466 AUD
Retailer 3$12,406 AUD
Retailer 8$14,321 AUD
Retailer 9$16,530 AUD
Retailer 4$18,962 AUD
Do Amore Diamonds$35,732 AUD

28 data points across 11 retailers

11 retailers$5,737 AUD to $35,732 AUD

A
Cheapest Retailer
-
$5,737 AUD
$4,030 USD
A
Retailer 2
-
$6,022 AUD
$4,230 USD
View
A
Retailer 3
-
$6,828 AUD
$4,796 USD
View
A
Retailer 4
-
$8,174 AUD
$5,742 USD
View
Final sale: no returns
A
Retailer 5
-
$9,715 AUD
$6,824 USD
View
A
Retailer 6
-
$11,466 AUD
€7,671 EUR
View
Retailer 7
-
$12,406 AUD
$8,715 USD
View
Price last confirmed 82 days ago
B+
Retailer 8
-
$14,321 AUD
£7,921 GBP
View
B+
Retailer 9
-
$16,530 AUD
$11,612 USD
View
B+
Retailer 10
-
$18,962 AUD
$13,320 USD
View
Most Expensive
B
Do Amore Diamonds
27-1DE6E0656 · Oct 31
$35,732 AUD
$25,100 USD
View
10 more retailers have this diamond
Prices start from $5,737 AUDSave up to $29,995 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
4.30ct Cushion
$5,737 AUD