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 €224 EUR
As of November 5, 2026
Save €1,425 EUR (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,648 EUR at Brilliant Earth · As of November 4, 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 4, 2026, with prices from €224 to €1,648, a €1,425 spread on the same certified stone. Brilliant Earth lists it at €1,648. 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
Colour
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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Price History

Last verified: Nov 5
Current: €1,648 EUR|Low: €224 EUR|High: €1,693 EUR|Avg: €662 EUR|-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
November 6, 2026
Retailer 9€224 EUR
Retailer 7€254 EUR
Retailer 4€358 EUR
Retailer 15€422 EUR
Retailer 14€437 EUR
Retailer 2€454 EUR
Retailer 5€537 EUR
Retailer 6€551 EUR
Retailer 13€620 EUR
Retailer 3€659 EUR
Retailer 8€788 EUR
Retailer 12€842 EUR
Retailer 10€988 EUR
Retailer 11€1,114 EUR
Brilliant Earth€1,648 EUR

37 data points across 15 retailers

22 retailers€224 EUR to €1,648 EUR

Retailer 1
-
€205 EUR
Price last confirmed 44 days ago
Retailer 2
-
€205 EUR
View
Price last confirmed 27 days ago
A
Retailer 3
-
€224 EUR
View
Final sale: no returns
Retailer 4
-
€237 EUR
View
Price last confirmed 42 days ago
Retailer 5
-
€250 EUR
View
Price last confirmed 42 days ago
Retailer 6
-
€254 EUR
View
Price last confirmed 25 days ago
Retailer 7
-
€254 EUR
View
Price last confirmed 35 days ago
A
Retailer 8
-
€358 EUR
View
A
Retailer 9
-
€422 EUR
View
A
Retailer 10
-
€437 EUR
View
A
Retailer 11
-
€454 EUR
View
A
Retailer 12
-
€537 EUR
View
A
Retailer 13
-
€551 EUR
View
A
Retailer 14
-
€620 EUR
View
A
Retailer 15
-
€659 EUR
View
B+
Retailer 16
-
€788 EUR
View
Retailer 17
-
€815 EUR
View
Price last confirmed 30 days ago
B+
Retailer 18
-
€842 EUR
View
B+
Retailer 19
-
€988 EUR
View
B+
Retailer 20
-
€1,114 EUR
View
B+
Retailer 21
-
€1,148 EUR
View
Most Expensive
B
Brilliant Earth
20677511A · Nov 4
€1,648 EUR
$1,850 USD
View
21 more retailers have this diamond
Prices start from €224 EURSave up to €1,425 EUR

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
€224 EUR