CaratHunter
Plans
Cushion|Lab Grown|IGI

4.08ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG734539297

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG734539297

Diamond specifications and retailer prices

From $3,539 USD
As of October 31, 2026
Save $15,514 USD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $19,053 USD at With Clarity · As of October 31, 2026
View at With Clarity

About this 4.08ct lab-grown cushion diamond

This 4.08ct 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 LG734539297 or 734539297. Listed at 20 retailers as of October 31, 2026, with prices from $3,539 to $19,053, a $15,514 spread on the same certified stone. With Clarity lists it at $19,053. 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

4.08
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG734539297
Dimensions10.42 × 8.67 × 5.78 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
10.42 mm8.67 mm4.08 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG734539297
Side View
Table 61.0%Crown 34.7°Girdle: MED-STKPavilion 35.5°Culet: NoneDepth 66.7%

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 31
Current: $5,885 USD|Low: $3,539 USD|High: $20,439 USD|Avg: $8,605 USD|-6.7%
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
Retailer 18
With Clarity
October 31, 2026
Retailer 5$3,539 USD
Retailer 14$3,613 USD
Retailer 12$3,825 USD
Retailer 4$4,506 USD
Retailer 11$4,829 USD
Retailer 13$5,464 USD
Retailer 1$5,885 USD
Retailer 9$6,068 USD
Retailer 2$6,340 USD
Retailer 3$7,802 USD
Retailer 6$8,592 USD
Retailer 7$8,625 USD
Retailer 16$10,168 USD
Retailer 10$10,592 USD
Retailer 15$10,910 USD
Retailer 18$12,804 USD
Retailer 17$13,045 USD
Retailer 8$15,587 USD
With Clarity$19,053 USD

36 data points across 19 retailers

20 retailers$3,539 USD to $19,053 USD

A
Cheapest Retailer
-
$3,539 USD
Final sale: no returns
A
Retailer 2
-
$3,613 USD
View
A
Retailer 3
-
$3,825 USD
View
A
Retailer 4
-
$4,506 USD
HK$35,200 HKD
View
A
Retailer 5
-
$4,829 USD
£3,803 GBP
View
A
Retailer 6
-
$5,464 USD
View
A
Retailer 7
-
$5,885 USD
€5,605 EUR
View
A
Retailer 8
-
$6,068 USD
View
A
Retailer 9
-
$6,340 USD
£4,992 GBP
View
Retailer 10
-
$7,195 USD
View
Price last confirmed 96 days ago
A
Retailer 11
-
$7,802 USD
ZAR 126,038 ZAR
View
A
Retailer 12
-
$8,592 USD
£6,765 GBP
View
Retailer 13
-
$8,625 USD
A$13,269 AUD
View
Price last confirmed 9 days ago
B+
Retailer 14
-
$10,168 USD
View
B+
Retailer 15
-
$10,592 USD
View
B+
Retailer 16
-
$10,910 USD
View
B+
Retailer 17
-
$12,804 USD
View
B+
Retailer 18
-
$13,045 USD
SGD 17,629 SGD
View
Retailer 19
-
$15,587 USD
A$23,980 AUD
View
Price last confirmed 23 days ago
Most Expensive
B
With Clarity
734539297 · Oct 31
$19,053 USD
View
19 more retailers have this diamond
Prices start from $3,539 USDSave up to $15,514 USD

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
4.08ct Cushion
$3,539 USD