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Round|Lab Grown|IGI

1.28ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG588375105

Shape and cutting style on the report: Round brilliant

Certificate IGI LG588375105

Diamond specifications and retailer prices

From $338 CAD
$242 USD
As of October 29, 2026
Save $1,518 CAD (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,856 CAD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG588375105 or 588375105. Listed at 18 retailers as of October 29, 2026, with prices from $338 to $1,856, a $1,518 spread on the same certified stone. Reve Diamonds lists it at $1,856. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588375105
Dimensions7.03 × 6.99 × 4.25 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
7.03 mm6.99 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588375105
Side View
Table 59.0%Crown 34°Girdle: MediumPavilion 41°Culet: NoneDepth 60.6%

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: $393 CAD|Low: $338 CAD|High: $1,703 CAD|Avg: $749 CAD
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
October 30, 2026
Retailer 9$338 CAD
Retailer 6$377 CAD
Retailer 1$393 CAD
Retailer 11$420 CAD
Retailer 14$420 CAD
Retailer 7$680 CAD
Retailer 4$707 CAD
Retailer 2$710 CAD
Retailer 5$757 CAD
Retailer 8$794 CAD
Retailer 12$1,031 CAD
Retailer 13$1,349 CAD
Retailer 3$1,355 CAD
Retailer 10$1,692 CAD

38 data points across 14 retailers

18 retailers$338 CAD to $1,856 CAD

A
Cheapest Retailer
-
$338 CAD
$242 USD
A
Retailer 2
-
$377 CAD
$270 USD
View
Final sale: no returns
A
Retailer 3
-
$393 CAD
$281 USD
View
Retailer 4
-
$420 CAD
$301 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$420 CAD
$301 USD
View
A
Retailer 6
-
$680 CAD
£383 GBP
View
A
Retailer 7
-
$707 CAD
$506 USD
View
Retailer 8
-
$710 CAD
ZAR 8,211 ZAR
View
Price last confirmed 7 days ago
A
Retailer 9
-
$757 CAD
$542 USD
View
A
Retailer 10
-
$757 CAD
$542 USD
View
A
Retailer 11
-
$794 CAD
£448 GBP
View
A
Retailer 12
-
$1,006 CAD
$720 USD
View
A
Retailer 13
-
$1,031 CAD
A$1,136 AUD
View
B+
Retailer 14
-
$1,349 CAD
$966 USD
View
B+
Retailer 15
-
$1,355 CAD
$970 USD
View
B+
Retailer 16
-
$1,422 CAD
$1,018 USD
View
B+
Retailer 17
-
$1,692 CAD
£954 GBP
View
Most Expensive
B+
Reve Diamonds
E25E1660C · Oct 30
$1,856 CAD
$1,329 USD
View
17 more retailers have this diamond
Prices start from $338 CADSave up to $1,518 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
1.28ct Round
$338 CAD