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Cushion|Lab Grown|IGI

4.18ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG784649771

Shape and cutting style on the report: Rectangular cushion mixed cut

Certificate IGI LG784649771

Diamond specifications and retailer prices

From $7,820 AUD
$5,493 USD
As of October 31, 2026
Save $47,957 AUD (86%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $55,777 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.18ct lab-grown cushion diamond

This 4.18ct 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 LG784649771 or 784649771. Listed at 14 retailers as of October 31, 2026, with prices from $7,820 to $55,777, a $47,957 spread on the same certified stone. Do Amore Diamonds lists it at $55,777. 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

4.18
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.3°
Pavilion angle44°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784649771
Dimensions11.30 × 7.71 × 4.89 mm
L/W Ratio1.47
Girdle conditionPARTLY FACETED
Culet sizeLarge
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
11.30 mm7.71 mm4.18 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784649771
Side View
Table 66.0%Crown 43.3°Girdle: MED-STKPavilion 44°Culet: LargeDepth 63.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $55,777 AUD|Low: $6,637 AUD|High: $59,264 AUD|Avg: $20,562 AUD
Do Amore Diamonds
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
November 1, 2026
Retailer 14$7,820 AUD
Retailer 4$9,087 AUD
Retailer 10$9,979 AUD
Retailer 13$9,992 AUD
Retailer 8$10,475 AUD
Retailer 7$13,863 AUD
Retailer 5$15,751 AUD
Retailer 12$16,286 AUD
Retailer 2$22,052 AUD
Retailer 9$23,477 AUD
Retailer 11$24,745 AUD
Retailer 3$27,503 AUD
Retailer 6$37,876 AUD
Do Amore Diamonds$55,777 AUD

36 data points across 14 retailers

14 retailers$7,820 AUD to $55,777 AUD

A
Cheapest Retailer
-
$7,820 AUD
$5,493 USD
A
Retailer 2
-
$9,087 AUD
$6,383 USD
View
A
Retailer 3
-
$9,979 AUD
$7,010 USD
View
Retailer 4
-
$9,992 AUD
$7,019 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$10,475 AUD
$7,358 USD
View
Final sale: no returns
B+
Retailer 6
-
$13,863 AUD
£7,668 GBP
View
B+
Retailer 7
-
$15,751 AUD
£8,712 GBP
View
B+
Retailer 8
-
$16,286 AUD
$11,440 USD
View
B+
Retailer 9
-
$22,052 AUD
£12,197 GBP
View
B+
Retailer 10
-
$23,477 AUD
ZAR 266,416 ZAR
View
B
Retailer 11
-
$24,745 AUD
$17,382 USD
View
B
Retailer 12
-
$27,503 AUD
$19,319 USD
View
B
Retailer 13
-
$37,876 AUD
$26,606 USD
View
Most Expensive
B
Do Amore Diamonds
20-E75750 · Oct 31
$55,777 AUD
$39,180 USD
View
13 more retailers have this diamond
Prices start from $7,820 AUDSave up to $47,957 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
4.18ct Cushion
$7,820 AUD