Oval|Lab Grown|IGI

1.51ct F FL Oval Lab Grown Diamond

ID • F/FL • IGI LG818654122

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818654122

Diamond specifications and retailer prices

From €258 EUR
As of November 5, 2026
Save €1,951 EUR (88%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €3,243 EUR at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818654122 or 818654122. Listed at 20 retailers as of November 4, 2026, with a 755% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818654122
Dimensions9.32 × 6.47 × 3.89 mm
L/W Ratio1.44
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
9.32 mm6.47 mm1.51 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818654122
Side View
Table 62.0%Crown 34.6°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 60.1%

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 5
Current: €3,243 EUR|Low: €258 EUR|High: €3,510 EUR|Avg: €944 EUR
Rare Carat
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
Retailer 16
Retailer 17
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Retailer 19
Retailer 20
November 6, 2026
Retailer 17€258 EUR
Retailer 14€290 EUR
Retailer 20€300 EUR
Retailer 7€321 EUR
Retailer 12€334 EUR
Retailer 16€459 EUR
Retailer 15€527 EUR
Retailer 2€561 EUR
Retailer 10€561 EUR
Retailer 9€576 EUR
Retailer 19€892 EUR
Retailer 3€984 EUR
Retailer 18€1,031 EUR
Retailer 6€1,050 EUR
Retailer 5€1,067 EUR
Retailer 4€1,074 EUR
Retailer 8€1,126 EUR
Retailer 13€1,280 EUR
Retailer 11€2,210 EUR
Rare Carat€3,243 EUR

29 data points across 20 retailers

20 retailers€258 EUR to €2,210 EUR

A
Cheapest Retailer
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€258 EUR
A
Retailer 2
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€290 EUR
View
Final sale: no returns
A
Retailer 3
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€300 EUR
View
A
Retailer 4
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€321 EUR
View
Retailer 5
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€334 EUR
View
Price last confirmed 12 days ago
A
Retailer 6
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€459 EUR
View
A
Retailer 7
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€527 EUR
View
A
Retailer 8
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€561 EUR
View
A
Retailer 9
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€561 EUR
View
A
Retailer 10
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€576 EUR
View
A
Retailer 11
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€892 EUR
View
B+
Retailer 12
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€984 EUR
View
B+
Retailer 13
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€1,031 EUR
View
B+
Retailer 14
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€1,050 EUR
View
B+
Retailer 15
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€1,067 EUR
View
B+
Retailer 16
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€1,074 EUR
View
B+
Retailer 17
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€1,126 EUR
View
B+
Retailer 18
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€1,280 EUR
View
B
Retailer 19
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€2,210 EUR
View
Most Expensive
Rare Carat
PD-237483 · Oct 28
€3,243 EUR
$3,640 USD
View
Price last confirmed 8 days ago
19 more retailers have this diamond
Prices start from €258 EURSave up to €1,951 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
1.51ct Oval
€258 EUR