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Cushion|Lab Grown|IGI

4.10ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG720556118

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG720556118

Diamond specifications and retailer prices

From $3,084 USD
As of October 29, 2026
Save $16,496 USD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $19,580 USD at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

About this 4.1ct lab-grown cushion diamond

This 4.1ct 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 LG720556118 or 720556118. Listed at 21 retailers as of October 24, 2026, with prices from $3,084 to $19,580, a $16,496 spread on the same certified stone. Brilliant Earth lists it at $19,580. 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

4.10
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720556118
Dimensions10.53 × 8.80 × 5.68 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
10.53 mm8.80 mm4.10 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720556118
Side View
Table 60.0%Crown 36.9°Girdle: MED-STKPavilion 35.6°Culet: NoneDepth 64.5%

Caratlytics Score

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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 29
Current: $11,550 USD|Low: $3,084 USD|High: $20,180 USD|Avg: $8,126 USD|-41.0%
Brilliant Earth
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
Retailer 19
October 30, 2026
Retailer 3$3,084 USD
Retailer 16$3,244 USD
Retailer 15$3,355 USD
Retailer 18$4,121 USD
Retailer 19$4,160 USD
Retailer 11$4,177 USD
Retailer 2$4,770 USD
Retailer 6$5,479 USD
Retailer 8$6,081 USD
Retailer 13$6,582 USD
Retailer 12$7,507 USD
Retailer 7$7,569 USD
Retailer 9$8,521 USD
Retailer 4$8,799 USD
Retailer 14$8,988 USD
Brilliant Earth$11,550 USD
Retailer 5$12,046 USD
Retailer 10$12,283 USD
Retailer 17$18,950 USD

36 data points across 19 retailers

21 retailers$3,084 USD to $19,580 USD

A
Cheapest Retailer
-
$3,084 USD
Final sale: no returns
A
Retailer 2
-
$3,244 USD
View
A
Retailer 3
-
$3,355 USD
View
A
Retailer 4
-
$4,121 USD
View
A
Retailer 5
-
$4,160 USD
HK$32,500 HKD
View
Retailer 6
-
$4,177 USD
View
Price last confirmed 18 days ago
A
Retailer 7
-
$4,770 USD
£3,756 GBP
View
Retailer 8
-
$5,479 USD
View
Price last confirmed 7 days ago
A
Retailer 9
-
$6,081 USD
£4,788 GBP
View
A
Retailer 10
-
$6,582 USD
€6,269 EUR
View
A
Retailer 11
-
$7,507 USD
ZAR 121,270 ZAR
View
Retailer 12
-
$7,569 USD
A$11,644 AUD
View
Price last confirmed 8 days ago
A
Retailer 13
-
$8,521 USD
View
B+
Retailer 14
-
$8,799 USD
View
B+
Retailer 15
-
$8,988 USD
£7,077 GBP
View
Retailer 16
-
$9,208 USD
£7,250 GBP
View
Price last confirmed 21 days ago
B+
Retailer 17
-
$11,550 USD
View
B+
Retailer 18
-
$12,046 USD
SGD 16,278 SGD
View
B+
Retailer 19
-
$12,283 USD
View
B
Retailer 20
-
$18,950 USD
View
Most Expensive
B
Brilliant Earth
14890425A · Oct 24
$19,580 USD
View
20 more retailers have this diamond
Prices start from $3,084 USDSave up to $16,496 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
4.10ct Cushion
$3,084 USD