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Cushion|Lab Grown|IGI

4.08ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG754507855

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG754507855

Diamond specifications and retailer prices

From $3,063 USD
£2,412 GBP
As of October 30, 2026
Save $16,637 USD (84%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $19,700 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 LG754507855 or 754507855. Listed at 22 retailers as of October 30, 2026, with prices from $3,063 to $19,700, a $16,637 spread on the same certified stone. Do Amore Diamonds lists it at $19,700. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754507855
Dimensions8.75 × 8.75 × 5.69 mm
L/W Ratio1.00
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
8.75 mm8.75 mm4.08 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754507855
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 35.8°Culet: NoneDepth 65.0%

Caratlytics Score

How it works →
A+
Exceptional
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 30
Current: $19,700 USD|Low: $3,063 USD|High: $21,440 USD|Avg: $8,365 USD|-8.1%
Do Amore Diamonds
Retailer 2
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Retailer 22
October 31, 2026
Retailer 3$3,063 USD
Retailer 16$3,335 USD
Retailer 18$3,355 USD
Retailer 21$3,739 USD
Retailer 17$4,107 USD
Retailer 8$4,582 USD
Retailer 13$4,829 USD
Retailer 2$5,885 USD
Retailer 12$6,068 USD
Retailer 6$6,340 USD
Retailer 14$6,690 USD
Retailer 7$7,802 USD
Retailer 19$8,362 USD
Retailer 9$8,592 USD
Retailer 10$8,625 USD
Retailer 22$9,145 USD
Retailer 15$10,592 USD
Retailer 20$10,910 USD
Retailer 5$12,804 USD
Retailer 4$13,250 USD
Retailer 11$15,587 USD
Do Amore Diamonds$19,700 USD

34 data points across 22 retailers

22 retailers$3,063 USD to $19,700 USD

A+
Cheapest Retailer
-
$3,063 USD
£2,412 GBP
A
Retailer 2
-
$3,335 USD
View
A
Retailer 3
-
$3,355 USD
View
A
Retailer 4
-
$3,739 USD
View
Final sale: no returns
A
Retailer 5
-
$4,107 USD
View
A
Retailer 6
-
$4,582 USD
HK$35,800 HKD
View
A
Retailer 7
-
$4,829 USD
£3,803 GBP
View
Retailer 8
-
$5,447 USD
£4,289 GBP
View
Price last confirmed 16 days ago
A
Retailer 9
-
$5,885 USD
€5,605 EUR
View
A
Retailer 10
-
$6,068 USD
View
A
Retailer 11
-
$6,340 USD
£4,992 GBP
View
A
Retailer 12
-
$7,802 USD
ZAR 126,038 ZAR
View
A
Retailer 13
-
$8,362 USD
View
A
Retailer 14
-
$8,592 USD
£6,765 GBP
View
Retailer 15
-
$8,625 USD
A$13,269 AUD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
$9,145 USD
View
B+
Retailer 17
-
$10,592 USD
View
B+
Retailer 18
-
$10,910 USD
View
B+
Retailer 19
-
$12,804 USD
View
B
Retailer 20
-
$13,250 USD
SGD 17,905 SGD
View
Retailer 21
-
$15,587 USD
A$23,980 AUD
View
Price last confirmed 23 days ago
Most Expensive
B
Do Amore Diamonds
27-C7643D8D9 · Oct 31
$19,700 USD
View
21 more retailers have this diamond
Prices start from $3,063 USDSave up to $16,637 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
$3,063 USD