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Round|Lab Grown|IGI

1.55ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG678536607

Shape and cutting style on the report: Round brilliant

Certificate IGI LG678536607

Diamond specifications and retailer prices

From $462 CAD
$330 USD
As of October 29, 2026
Save $3,527 CAD (88%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $3,989 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.55ct lab-grown round diamond

This 1.55ct 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 LG678536607 or 678536607. Listed at 28 retailers as of October 29, 2026, with prices from $462 to $3,989, a $3,527 spread on the same certified stone. Brilliant Earth lists it at $3,989. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678536607
Dimensions7.38 × 7.43 × 4.57 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
7.38 mm7.43 mm1.55 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678536607
Side View
Table 57.0%Crown 35.1°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.6%

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: $3,989 CAD|Low: $459 CAD|High: $3,989 CAD|Avg: $1,437 CAD
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 11
Retailer 12
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Retailer 17
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Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 30, 2026
Retailer 8$462 CAD
Retailer 20$536 CAD
Retailer 16$550 CAD
Retailer 3$574 CAD
Retailer 4$574 CAD
Retailer 2$864 CAD
Retailer 11$917 CAD
Retailer 5$927 CAD
Retailer 22$935 CAD
Retailer 17$957 CAD
Retailer 15$981 CAD
Retailer 18$986 CAD
Retailer 13$1,024 CAD
Retailer 7$1,488 CAD
Retailer 9$1,843 CAD
Retailer 10$1,905 CAD
Retailer 12$2,021 CAD
Retailer 14$2,112 CAD
Retailer 6$2,253 CAD
Retailer 19$2,302 CAD
Retailer 21$2,988 CAD
Brilliant Earth$3,989 CAD

30 data points across 22 retailers

28 retailers$462 CAD to $3,989 CAD

Retailer 1
-
$459 CAD
$328 USD
Price last confirmed 38 days ago
A
Retailer 2
-
$462 CAD
$330 USD
View
A
Retailer 3
-
$536 CAD
$383 USD
View
A
Retailer 4
-
$550 CAD
$393 USD
View
Final sale: no returns
Retailer 5
-
$561 CAD
$401 USD
View
Price last confirmed 38 days ago
A
Retailer 6
-
$574 CAD
$410 USD
View
A
Retailer 7
-
$574 CAD
$410 USD
View
A
Retailer 8
-
$864 CAD
£486 GBP
View
A
Retailer 9
-
$917 CAD
$655 USD
View
A
Retailer 10
-
$927 CAD
$662 USD
View
A
Retailer 11
-
$935 CAD
$668 USD
View
A
Retailer 12
-
$957 CAD
€651 EUR
View
A
Retailer 13
-
$981 CAD
A$1,078 AUD
View
A
Retailer 14
-
$986 CAD
ZAR 11,376 ZAR
View
A
Retailer 15
-
$1,024 CAD
£576 GBP
View
A
Retailer 16
-
$1,292 CAD
$923 USD
View
B+
Retailer 17
-
$1,488 CAD
$1,063 USD
View
Retailer 18
-
$1,826 CAD
$1,305 USD
View
Price last confirmed 39 days ago
B+
Retailer 19
-
$1,843 CAD
$1,317 USD
View
B+
Retailer 20
-
$1,905 CAD
$1,361 USD
View
B+
Retailer 21
-
$1,912 CAD
$1,366 USD
View
Retailer 22
-
$2,021 CAD
A$2,222 AUD
View
Price last confirmed 22 days ago
B+
Retailer 23
-
$2,112 CAD
$1,509 USD
View
B+
Retailer 24
-
$2,148 CAD
$1,535 USD
View
B+
Retailer 25
-
$2,253 CAD
$1,610 USD
View
B+
Retailer 26
-
$2,302 CAD
£1,295 GBP
View
Retailer 27
-
$2,988 CAD
$2,135 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
14529369A · Oct 29
$3,989 CAD
$2,850 USD
View
27 more retailers have this diamond
Prices start from $462 CADSave up to $3,527 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
1.55ct Round
$462 CAD