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Oval|Lab Grown|IGI

1.28ct E IF Oval Lab Grown Diamond

EX • E/IF • IGI LG735568337

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG735568337

Diamond specifications and retailer prices

From $405 CAD
$290 USD
As of October 29, 2026
Save $2,389 CAD (86%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,794 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.28ct lab-grown oval diamond

This 1.28ct lab-grown oval 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 LG735568337 or 735568337. Listed at 14 retailers as of October 29, 2026, with prices from $405 to $2,794, a $2,389 spread on the same certified stone. Brilliant Earth lists it at $2,794. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735568337
Dimensions6.07 × 6.07 × 3.84 mm
L/W Ratio1.00
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
6.07 mm6.07 mm1.28 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735568337
Side View
Table 60.0%Crown 35.4°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 63.3%

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: $2,794 CAD|Low: $356 CAD|High: $4,330 CAD|Avg: $1,199 CAD|-35.5%
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
Retailer 16
Retailer 17
Retailer 18
October 31, 2026
Retailer 13$405 CAD
Retailer 11$418 CAD
Retailer 16$556 CAD
Retailer 6$645 CAD
Retailer 18$677 CAD
Retailer 12$735 CAD
Retailer 15$840 CAD
Retailer 5$856 CAD
Retailer 10$873 CAD
Retailer 4$962 CAD
Retailer 2$1,024 CAD
Retailer 3$1,201 CAD
Retailer 8$1,341 CAD
Retailer 7$1,533 CAD
Retailer 14$1,590 CAD
Retailer 17$1,791 CAD
Retailer 9$2,500 CAD
Brilliant Earth$2,794 CAD

6 data points across 18 retailers

14 retailers$405 CAD to $2,794 CAD

A
Cheapest Retailer
-
$405 CAD
$290 USD
Final sale: no returns
A
Retailer 2
-
$418 CAD
£236 GBP
View
A
Retailer 3
-
$556 CAD
$398 USD
View
A
Retailer 4
-
$677 CAD
ZAR 7,835 ZAR
View
A
Retailer 5
-
$735 CAD
£414 GBP
View
A
Retailer 6
-
$840 CAD
$601 USD
View
A
Retailer 7
-
$856 CAD
$613 USD
View
B+
Retailer 8
-
$962 CAD
A$1,059 AUD
View
B+
Retailer 9
-
$1,024 CAD
$733 USD
View
B+
Retailer 10
-
$1,201 CAD
$860 USD
View
B+
Retailer 11
-
$1,341 CAD
$960 USD
View
B
Retailer 12
-
$1,590 CAD
£896 GBP
View
B
Retailer 13
-
$1,791 CAD
$1,282 USD
View
Most Expensive
B
Brilliant Earth
17527358A · Oct 29
$2,794 CAD
$2,000 USD
View
13 more retailers have this diamond
Prices start from $405 CADSave up to $2,389 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 Oval
$405 CAD