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Round|Lab Grown|IGI

4.26ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG737568627

Shape and cutting style on the report: Round brilliant

Certificate IGI LG737568627

Diamond specifications and retailer prices

From $2,865 CAD
£1,615 GBP
As of October 30, 2026
Save $16,126 CAD (85%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $18,991 CAD at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 4.26ct lab-grown round diamond

This 4.26ct 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 LG737568627 or 737568627. Listed at 26 retailers as of October 29, 2026, with prices from $2,865 to $18,991, a $16,126 spread on the same certified stone. Blue Nile lists it at $18,991. 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

4.26
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG737568627
Dimensions10.38 × 10.30 × 6.44 mm
L/W Ratio1.01
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
10.38 mm10.30 mm4.26 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG737568627
Side View
Table 56.0%Crown 35.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

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: $18,816 CAD|Low: $2,855 CAD|High: $33,595 CAD|Avg: $7,798 CAD|-44.0%
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
October 30, 2026
Retailer 9$2,865 CAD
Retailer 2$3,184 CAD
Retailer 16$3,464 CAD
Retailer 12$3,565 CAD
Retailer 4$3,693 CAD
Retailer 10$5,065 CAD
Retailer 3$5,076 CAD
Retailer 6$5,357 CAD
Retailer 7$5,546 CAD
Retailer 5$5,660 CAD
Retailer 14$5,877 CAD
Retailer 11$7,862 CAD
Retailer 15$7,926 CAD
Retailer 13$10,075 CAD
Retailer 8$15,501 CAD
Retailer 1$18,816 CAD

29 data points across 16 retailers

26 retailers$2,865 CAD to $18,991 CAD

A+
Cheapest Retailer
-
$2,865 CAD
£1,615 GBP
A
Retailer 2
-
$3,184 CAD
$2,279 USD
View
A
Retailer 3
-
$3,464 CAD
$2,480 USD
View
A
Retailer 4
-
$3,565 CAD
$2,552 USD
View
Final sale: no returns
A
Retailer 5
-
$3,693 CAD
$2,644 USD
View
A
Retailer 6
-
$3,904 CAD
$2,795 USD
View
A
Retailer 7
-
$4,488 CAD
HK$25,100 HKD
View
A
Retailer 8
-
$5,065 CAD
£2,855 GBP
View
A
Retailer 9
-
$5,076 CAD
$3,634 USD
View
A
Retailer 10
-
$5,357 CAD
$3,835 USD
View
A
Retailer 11
-
$5,546 CAD
$3,970 USD
View
A
Retailer 12
-
$5,660 CAD
$4,052 USD
View
A
Retailer 13
-
$5,877 CAD
€4,007 EUR
View
A
Retailer 14
-
$6,870 CAD
$4,918 USD
View
A
Retailer 15
-
$7,862 CAD
ZAR 90,921 ZAR
View
Retailer 16
-
$7,926 CAD
A$8,729 AUD
View
Price last confirmed 8 days ago
B+
Retailer 17
-
$9,636 CAD
$6,898 USD
View
B+
Retailer 18
-
$9,862 CAD
$7,060 USD
View
B+
Retailer 19
-
$10,075 CAD
£5,679 GBP
View
B+
Retailer 20
-
$10,427 CAD
$7,465 USD
View
B+
Retailer 21
-
$12,902 CAD
$9,236 USD
View
B+
Retailer 22
-
$12,992 CAD
SGD 12,568 SGD
View
Retailer 23
-
$15,501 CAD
A$17,072 AUD
View
Price last confirmed 25 days ago
B
Retailer 24
-
$18,816 CAD
$13,470 USD
View
B
Retailer 25
-
$18,973 CAD
$13,582 USD
View
Most Expensive
B
Blue Nile
27482224 · Oct 29
$18,991 CAD
$13,595 USD
View
25 more retailers have this diamond
Prices start from $2,865 CADSave up to $16,126 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+
4.26ct Round
$2,865 CAD