CaratHunter
Plans
Round|Lab Grown|IGI

4.20ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG807639396

Shape and cutting style on the report: Round brilliant

Certificate IGI LG807639396

Diamond specifications and retailer prices

From $4,439 CAD
£2,502 GBP
As of October 30, 2026
Save $6,899 CAD (61%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $11,338 CAD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.2ct lab-grown round diamond

This 4.2ct lab-grown round 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 LG807639396 or 807639396. Listed at 7 retailers as of October 30, 2026, with prices from $4,439 to $11,338, a $6,899 spread on the same certified stone. Taylor and Hart lists it at $11,338. 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
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807639396
Dimensions10.44 × 10.40 × 6.35 mm
L/W Ratio1.00
Girdle conditionFaceted
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
10.44 mm10.40 mm4.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807639396
Side View
Table 58.0%Crown 33.1°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 60.9%

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: $4,439 CAD|Low: $3,791 CAD|High: $15,022 CAD|Avg: $6,600 CAD|-22.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
October 30, 2026
Retailer 6$3,791 CAD
Retailer 1$4,439 CAD
Retailer 4$4,631 CAD
Retailer 3$5,054 CAD
Retailer 5$6,579 CAD
Retailer 2$9,303 CAD
Taylor and Hart$11,338 CAD

32 data points across 7 retailers

7 retailers$4,439 CAD to $11,338 CAD

Retailer 1
-
$3,791 CAD
HK$21,200 HKD
Price last confirmed 39 days ago
A
Retailer 2
-
$4,439 CAD
£2,502 GBP
View
A
Retailer 3
-
$4,631 CAD
$3,315 USD
View
A
Retailer 4
-
$5,054 CAD
€3,446 EUR
View
A
Retailer 5
-
$6,579 CAD
$4,710 USD
View
B+
Retailer 6
-
$9,303 CAD
£5,244 GBP
View
Most Expensive
B+
Taylor and Hart
76D2FDW · Oct 30
$11,338 CAD
$8,117 USD
View
6 more retailers have this diamond
Prices start from $4,439 CADSave up to $6,899 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 Round
$4,439 CAD