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Cushion|Lab Grown|IGI

4.20ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG805652143

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG805652143

Diamond specifications and retailer prices

From $2,895 CAD
£1,632 GBP
As of October 30, 2026
Save $9,222 CAD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,117 CAD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.2ct lab-grown cushion diamond

This 4.2ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG805652143 or 805652143. Listed at 18 retailers as of October 30, 2026, with prices from $2,895 to $12,117, a $9,222 spread on the same certified stone. Taylor and Hart lists it at $12,117. 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

4.20
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805652143
Dimensions11.28 × 7.92 × 5.69 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.28 mm7.92 mm4.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805652143
Side View
Table 66.0%Crown 38.8°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 71.8%

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: $5,384 CAD|Low: $2,689 CAD|High: $12,755 CAD|Avg: $6,304 CAD|+0.5%
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
Taylor and Hart
October 31, 2026
Retailer 11$2,895 CAD
Retailer 2$3,346 CAD
Retailer 13$3,534 CAD
Retailer 14$3,798 CAD
Retailer 15$4,005 CAD
Retailer 9$4,770 CAD
Retailer 10$5,065 CAD
Retailer 1$5,384 CAD
Retailer 7$5,698 CAD
Retailer 4$6,578 CAD
Retailer 8$6,931 CAD
Retailer 12$7,377 CAD
Retailer 16$8,123 CAD
Retailer 5$9,338 CAD
Retailer 6$9,919 CAD
Retailer 3$11,594 CAD
Taylor and Hart$12,117 CAD

21 data points across 17 retailers

18 retailers$2,895 CAD to $12,117 CAD

A
Cheapest Retailer
-
$2,895 CAD
£1,632 GBP
A
Retailer 2
-
$3,346 CAD
$2,395 USD
View
Final sale: no returns
Retailer 3
-
$3,374 CAD
$2,415 USD
View
Price last confirmed 20 days ago
A
Retailer 4
-
$3,534 CAD
$2,530 USD
View
A
Retailer 5
-
$3,798 CAD
$2,719 USD
View
A
Retailer 6
-
$4,005 CAD
HK$22,400 HKD
View
A
Retailer 7
-
$4,770 CAD
£2,689 GBP
View
A
Retailer 8
-
$5,065 CAD
$3,626 USD
View
A
Retailer 9
-
$5,384 CAD
€3,671 EUR
View
A
Retailer 10
-
$5,698 CAD
$4,079 USD
View
A
Retailer 11
-
$6,578 CAD
£3,708 GBP
View
Retailer 12
-
$6,931 CAD
A$7,633 AUD
View
Price last confirmed 9 days ago
A
Retailer 13
-
$7,377 CAD
ZAR 85,319 ZAR
View
A
Retailer 14
-
$8,123 CAD
$5,815 USD
View
A
Retailer 15
-
$9,338 CAD
$6,685 USD
View
A
Retailer 16
-
$9,919 CAD
£5,591 GBP
View
B+
Retailer 17
-
$11,594 CAD
SGD 11,216 SGD
View
Most Expensive
B+
Taylor and Hart
AP5JNQW · Oct 30
$12,117 CAD
$8,675 USD
View
17 more retailers have this diamond
Prices start from $2,895 CADSave up to $9,222 CAD

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
4.20ct Cushion
$2,895 CAD