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Round|Lab Grown|IGI

1.28ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG786633884

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786633884

Diamond specifications and retailer prices

From $364 CAD
$260 USD
As of October 29, 2026
Save $3,107 CAD (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,471 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 LG786633884 or 786633884. Listed at 24 retailers as of October 29, 2026, with prices from $364 to $3,471, a $3,107 spread on the same certified stone. Brilliant Earth lists it at $3,471. 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 angle35.3°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786633884
Dimensions6.91 × 6.95 × 4.31 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
6.91 mm6.95 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786633884
Side View
Table 58.0%Crown 35.3°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.3%

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: $3,471 CAD|Low: $406 CAD|High: $3,471 CAD|Avg: $1,083 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
October 30, 2026
Retailer 5$406 CAD
Retailer 3$609 CAD
Retailer 12$672 CAD
Retailer 9$775 CAD
Retailer 4$806 CAD
Retailer 7$811 CAD
Retailer 2$860 CAD
Retailer 8$1,098 CAD
Retailer 11$1,146 CAD
Retailer 10$1,722 CAD
Retailer 6$1,817 CAD
Brilliant Earth$3,471 CAD

41 data points across 12 retailers

24 retailers$364 CAD to $3,471 CAD

A
Cheapest Retailer
-
$364 CAD
$260 USD
A
Retailer 2
-
$406 CAD
$290 USD
View
Final sale: no returns
A
Retailer 3
-
$421 CAD
$301 USD
View
A
Retailer 4
-
$451 CAD
$322 USD
View
A
Retailer 5
-
$451 CAD
$322 USD
View
A
Retailer 6
-
$502 CAD
HK$2,800 HKD
View
A
Retailer 7
-
$609 CAD
$435 USD
View
A
Retailer 8
-
$672 CAD
$480 USD
View
A
Retailer 9
-
$775 CAD
ZAR 8,945 ZAR
View
A
Retailer 10
-
$806 CAD
$576 USD
View
A
Retailer 11
-
$811 CAD
€552 EUR
View
A
Retailer 12
-
$860 CAD
£484 GBP
View
A
Retailer 13
-
$1,016 CAD
$726 USD
View
A
Retailer 14
-
$1,098 CAD
A$1,207 AUD
View
B+
Retailer 15
-
$1,146 CAD
$819 USD
View
B+
Retailer 16
-
$1,450 CAD
$1,036 USD
View
B+
Retailer 17
-
$1,456 CAD
SGD 1,406 SGD
View
B+
Retailer 18
-
$1,522 CAD
$1,087 USD
View
B+
Retailer 19
-
$1,587 CAD
$1,134 USD
View
Retailer 20
-
$1,722 CAD
$1,230 USD
View
Price last confirmed 12 days ago
B+
Retailer 21
-
$1,817 CAD
£1,022 GBP
View
B+
Retailer 22
-
$1,938 CAD
$1,385 USD
View
B
Retailer 23
-
$3,199 CAD
£1,800 GBP
View
Most Expensive
B
Brilliant Earth
18980939A · Oct 29
$3,471 CAD
$2,480 USD
View
23 more retailers have this diamond
Prices start from $364 CADSave up to $3,107 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
$364 CAD