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Round|Lab Grown|IGI

1.28ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG800680138

Shape and cutting style on the report: Round brilliant

Certificate IGI LG800680138

Diamond specifications and retailer prices

From $645 CAD
HK$3,600 HKD
As of October 30, 2026
Save $1,916 CAD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,561 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800680138 or 800680138. Listed at 12 retailers as of October 29, 2026, with prices from $645 to $2,561, a $1,916 spread on the same certified stone. Brilliant Earth lists it at $2,561. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800680138
Dimensions7.09 × 7.06 × 4.20 mm
L/W Ratio1.00
Girdle conditionFaceted
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
7.09 mm7.06 mm1.28 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800680138
Side View
Table 57.0%Crown 33°Girdle: MediumPavilion 40.2°Culet: NoneDepth 59.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,561 CAD|Low: $645 CAD|High: $2,631 CAD|Avg: $1,398 CAD|-2.7%
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 7$645 CAD
Retailer 12$787 CAD
Retailer 8$904 CAD
Retailer 5$911 CAD
Retailer 2$988 CAD
Retailer 4$1,044 CAD
Retailer 10$1,046 CAD
Retailer 9$1,261 CAD
Retailer 11$1,851 CAD
Retailer 3$2,115 CAD
Retailer 6$2,241 CAD
Brilliant Earth$2,561 CAD

44 data points across 12 retailers

12 retailers$645 CAD to $2,561 CAD

A
Cheapest Retailer
-
$645 CAD
HK$3,600 HKD
A
Retailer 2
-
$787 CAD
$562 USD
View
A
Retailer 3
-
$904 CAD
$646 USD
View
A
Retailer 4
-
$911 CAD
€620 EUR
View
A
Retailer 5
-
$988 CAD
£556 GBP
View
A
Retailer 6
-
$1,044 CAD
A$1,148 AUD
View
A
Retailer 7
-
$1,046 CAD
$747 USD
View
B+
Retailer 8
-
$1,261 CAD
$901 USD
View
B+
Retailer 9
-
$1,851 CAD
$1,323 USD
View
B
Retailer 10
-
$2,115 CAD
$1,511 USD
View
B+
Retailer 11
-
$2,241 CAD
£1,261 GBP
View
Most Expensive
B
Brilliant Earth
21143557A · Oct 29
$2,561 CAD
$1,830 USD
View
11 more retailers have this diamond
Prices start from $645 CADSave up to $1,916 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
$645 CAD