Oval|Lab Grown|IGI

1.28ct F IF Oval Lab Grown Diamond

EX • F/IF • IGI LG812620275

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG812620275

Diamond specifications and retailer prices

From $358 CAD
$256 USD
As of November 1, 2026
Save $2,227 CAD (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,585 CAD at Brilliant Earth · As of November 2, 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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812620275 or 812620275. Listed at 22 retailers as of November 1, 2026, with prices from $358 to $2,585, a $2,227 spread on the same certified stone. Brilliant Earth lists it at $2,585. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812620275
Dimensions8.89 × 6.12 × 3.77 mm
L/W Ratio1.45
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
8.89 mm6.12 mm1.28 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812620275
Side View
Table 62.0%Crown 35.6°Girdle: MED-STKPavilion 40.9°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: Nov 1
Current: $2,585 CAD|Low: $358 CAD|High: $2,655 CAD|Avg: $1,113 CAD|-2.6%
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
November 3, 2026
Retailer 4$358 CAD
Retailer 6$398 CAD
Retailer 16$562 CAD
Retailer 11$663 CAD
Retailer 10$687 CAD
Retailer 2$744 CAD
Retailer 3$843 CAD
Retailer 5$864 CAD
Retailer 9$973 CAD
Retailer 12$1,034 CAD
Retailer 15$1,237 CAD
Retailer 7$1,352 CAD
Retailer 13$1,597 CAD
Retailer 8$1,800 CAD
Retailer 14$1,831 CAD
Brilliant Earth$2,585 CAD

35 data points across 16 retailers

22 retailers$358 CAD to $2,585 CAD

Retailer 1
-
$321 CAD
$230 USD
Price last confirmed 40 days ago
Retailer 2
-
$321 CAD
$230 USD
View
Price last confirmed 23 days ago
A
Retailer 3
-
$358 CAD
$256 USD
View
Final sale: no returns
Retailer 4
-
$372 CAD
$266 USD
View
Price last confirmed 39 days ago
Retailer 5
-
$393 CAD
$281 USD
View
Price last confirmed 38 days ago
Retailer 6
-
$398 CAD
$285 USD
View
Price last confirmed 21 days ago
Retailer 7
-
$398 CAD
$285 USD
View
Price last confirmed 31 days ago
A
Retailer 8
-
$562 CAD
$402 USD
View
A
Retailer 9
-
$663 CAD
€452 EUR
View
A
Retailer 10
-
$687 CAD
ZAR 7,943 ZAR
View
A
Retailer 11
-
$744 CAD
£419 GBP
View
A
Retailer 12
-
$843 CAD
$603 USD
View
A
Retailer 13
-
$864 CAD
$619 USD
View
Price last confirmed 7 days ago
A
Retailer 14
-
$973 CAD
A$1,071 AUD
View
A
Retailer 15
-
$1,034 CAD
$740 USD
View
B+
Retailer 16
-
$1,237 CAD
$885 USD
View
Retailer 17
-
$1,279 CAD
$915 USD
View
Price last confirmed 26 days ago
B+
Retailer 18
-
$1,352 CAD
$968 USD
View
Retailer 19
-
$1,597 CAD
£900 GBP
View
Price last confirmed 7 days ago
B+
Retailer 20
-
$1,800 CAD
$1,288 USD
View
Retailer 21
-
$1,831 CAD
$1,310 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
20677511A · Nov 2
$2,585 CAD
$1,850 USD
View
21 more retailers have this diamond
Prices start from $358 CADSave up to $2,227 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
$358 CAD