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Cushion|Lab Grown|IGI

4.04ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG681578637

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG681578637

Diamond specifications and retailer prices

From $4,620 AUD
$3,245 USD
As of October 30, 2026
Save $20,046 AUD (81%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $24,665 AUD at With Clarity · As of October 31, 2026
View at With Clarity

About this 4.04ct lab-grown cushion diamond

This 4.04ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG681578637 or 681578637. Listed at 21 retailers as of October 30, 2026, with prices from $4,620 to $24,665, a $20,046 spread on the same certified stone. With Clarity lists it at $24,665. 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

4.04
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681578637
Dimensions10.47 × 8.73 × 5.71 mm
L/W Ratio1.20
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
10.47 mm8.73 mm4.04 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681578637
Side View
Table 60.0%Crown 33.9°Girdle: STK-VTKPavilion 36.4°Culet: NoneDepth 65.4%

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: $6,468 AUD|Low: $4,620 AUD|High: $26,564 AUD|Avg: $12,105 AUD|-8.6%
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
With Clarity
October 31, 2026
Retailer 14$4,620 AUD
Retailer 12$4,826 AUD
Retailer 10$5,011 AUD
Retailer 4$5,831 AUD
Retailer 1$6,468 AUD
Retailer 11$7,534 AUD
Retailer 5$7,674 AUD
Retailer 9$7,894 AUD
Retailer 2$8,266 AUD
Retailer 3$10,189 AUD
Retailer 7$11,219 AUD
Retailer 6$13,292 AUD
Retailer 15$13,309 AUD
Retailer 13$15,375 AUD
Retailer 17$16,676 AUD
Retailer 16$16,891 AUD
Retailer 8$21,976 AUD
With Clarity$24,665 AUD

35 data points across 18 retailers

21 retailers$4,620 AUD to $24,665 AUD

A
Cheapest Retailer
-
$4,620 AUD
$3,245 USD
Final sale: no returns
A
Retailer 2
-
$4,826 AUD
$3,390 USD
View
A
Retailer 3
-
$5,011 AUD
$3,520 USD
View
A
Retailer 4
-
$5,831 AUD
HK$32,000 HKD
View
A
Retailer 5
-
$6,468 AUD
£3,578 GBP
View
Retailer 6
-
$7,083 AUD
£3,917 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
$7,534 AUD
$5,292 USD
View
A
Retailer 8
-
$7,674 AUD
€5,134 EUR
View
A
Retailer 9
-
$7,894 AUD
$5,545 USD
View
A
Retailer 10
-
$8,266 AUD
£4,572 GBP
View
Retailer 11
-
$9,724 AUD
$6,831 USD
View
Price last confirmed 95 days ago
A
Retailer 12
-
$10,189 AUD
ZAR 115,629 ZAR
View
Retailer 13
-
$11,219 AUD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
$13,292 AUD
£7,352 GBP
View
B+
Retailer 15
-
$13,309 AUD
$9,349 USD
View
B+
Retailer 16
-
$13,766 AUD
$9,670 USD
View
B+
Retailer 17
-
$15,375 AUD
$10,800 USD
View
B+
Retailer 18
-
$16,676 AUD
$11,714 USD
View
B+
Retailer 19
-
$16,891 AUD
SGD 16,034 SGD
View
Retailer 20
-
$21,976 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
With Clarity
681578637 · Oct 31
$24,665 AUD
$17,326 USD
View
20 more retailers have this diamond
Prices start from $4,620 AUDSave up to $20,046 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
4.04ct Cushion
$4,620 AUD