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Round|Lab Grown|IGI

1.91ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG640491565

Shape and cutting style on the report: Round brilliant

Certificate IGI LG640491565

Diamond specifications and retailer prices

From $858 CAD
$613 USD
As of October 29, 2026
Save $6,532 CAD (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $7,390 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.91ct lab-grown round diamond

This 1.91ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG640491565 or 640491565. Listed at 24 retailers as of October 29, 2026, with prices from $858 to $7,390, a $6,532 spread on the same certified stone. Brilliant Earth lists it at $7,390. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640491565
Dimensions7.88 × 7.93 × 4.92 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
7.88 mm7.93 mm1.91 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640491565
Side View
Table 58.0%Crown 35.8°Girdle: MediumPavilion 41°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
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: $7,390 CAD|Low: $824 CAD|High: $7,390 CAD|Avg: $2,454 CAD
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
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Retailer 17
Retailer 18
October 29, 2026
Retailer 5$858 CAD
Retailer 9$960 CAD
Retailer 8$1,064 CAD
Retailer 18$1,246 CAD
Retailer 6$1,428 CAD
Retailer 15$1,499 CAD
Retailer 11$1,609 CAD
Retailer 12$1,621 CAD
Retailer 2$1,656 CAD
Retailer 13$1,829 CAD
Retailer 16$2,494 CAD
Retailer 3$2,641 CAD
Retailer 7$2,852 CAD
Retailer 4$3,233 CAD
Retailer 10$3,516 CAD
Retailer 17$3,786 CAD
Retailer 14$4,627 CAD
Brilliant Earth$7,390 CAD

30 data points across 18 retailers

24 retailers$858 CAD to $7,390 CAD

A
Cheapest Retailer
-
$858 CAD
$613 USD
A
Retailer 2
-
$960 CAD
$686 USD
View
Final sale: no returns
A
Retailer 3
-
$962 CAD
$687 USD
View
A
Retailer 4
-
$1,064 CAD
$760 USD
View
Retailer 5
-
$1,064 CAD
$760 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$1,246 CAD
$890 USD
View
A
Retailer 7
-
$1,379 CAD
$985 USD
View
A
Retailer 8
-
$1,428 CAD
$1,020 USD
View
A
Retailer 9
-
$1,499 CAD
A$1,648 AUD
View
A
Retailer 10
-
$1,609 CAD
£905 GBP
View
A
Retailer 11
-
$1,621 CAD
€1,103 EUR
View
A
Retailer 12
-
$1,656 CAD
£932 GBP
View
A
Retailer 13
-
$1,829 CAD
ZAR 21,114 ZAR
View
B+
Retailer 14
-
$2,006 CAD
$1,433 USD
View
Retailer 15
-
$2,494 CAD
A$2,741 AUD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
$2,641 CAD
$1,887 USD
View
B+
Retailer 17
-
$2,799 CAD
$2,000 USD
View
Retailer 18
-
$2,852 CAD
A$3,135 AUD
View
Price last confirmed 21 days ago
B+
Retailer 19
-
$3,233 CAD
$2,310 USD
View
B
Retailer 20
-
$3,440 CAD
$2,458 USD
View
B
Retailer 21
-
$3,516 CAD
$2,512 USD
View
B+
Retailer 22
-
$3,786 CAD
$2,705 USD
View
B
Retailer 23
-
$4,627 CAD
£2,603 GBP
View
Most Expensive
B
Brilliant Earth
11460987A · Oct 29
$7,390 CAD
$5,280 USD
View
23 more retailers have this diamond
Prices start from $858 CADSave up to $6,532 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
1.91ct Round
$858 CAD