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Cushion|Lab Grown|IGI

4.78ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG804660154

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG804660154

Diamond specifications and retailer prices

From $6,865 AUD
$4,822 USD
As of November 1, 2026
Save $36,954 AUD (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $43,818 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.78ct lab-grown cushion diamond

This 4.78ct 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 LG804660154 or 804660154. Listed at 9 retailers as of October 31, 2026, with prices from $6,865 to $43,818, a $36,954 spread on the same certified stone. Do Amore Diamonds lists it at $43,818. 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

4.78
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804660154
Dimensions11.63 × 9.03 × 5.76 mm
L/W Ratio1.29
Girdle conditionFaceted
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
11.63 mm9.03 mm4.78 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804660154
Side View
Table 62.0%Crown 33.7°Girdle: STK-THKPavilion 34.8°Culet: NoneDepth 63.8%

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: Nov 1
Current: $43,818 AUD|Low: $6,865 AUD|High: $56,246 AUD|Avg: $19,719 AUD|-22.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 3$6,865 AUD
Retailer 6$7,289 AUD
Retailer 9$9,157 AUD
Retailer 5$9,357 AUD
Retailer 8$11,648 AUD
Retailer 2$14,112 AUD
Retailer 7$16,682 AUD
Retailer 4$19,788 AUD
Retailer 10$25,874 AUD
Do Amore Diamonds$43,818 AUD

27 data points across 10 retailers

9 retailers$6,865 AUD to $43,818 AUD

A+
Cheapest Retailer
-
$6,865 AUD
$4,822 USD
A
Retailer 2
-
$7,289 AUD
$5,120 USD
View
A
Retailer 3
-
$9,157 AUD
$6,432 USD
View
Final sale: no returns
A
Retailer 4
-
$9,357 AUD
$6,573 USD
View
A
Retailer 5
-
$11,648 AUD
$8,182 USD
View
A
Retailer 6
-
$14,112 AUD
€9,441 EUR
View
B+
Retailer 7
-
$16,682 AUD
£9,227 GBP
View
B+
Retailer 8
-
$19,788 AUD
$13,900 USD
View
Most Expensive
B
Do Amore Diamonds
27-BBB4EC1E3 · Oct 31
$43,818 AUD
$30,780 USD
View
8 more retailers have this diamond
Prices start from $6,865 AUDSave up to $36,954 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+
4.78ct Cushion
$6,865 AUD