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Marquise|Lab Grown|IGI

1.28ct F IF Marquise Lab Grown Diamond

EX • F/IF • IGI LG775631966

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG775631966

Diamond specifications and retailer prices

From €417 EUR
$468 USD
As of October 30, 2026
Save €828 EUR (66%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €1,246 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.28ct lab-grown marquise diamond

This 1.28ct lab-grown marquise 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 LG775631966 or 775631966. Listed at 8 retailers as of October 29, 2026, with prices from €417 to €1,246, a €828 spread on the same certified stone. MOH London lists it at €1,246. 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 angle35.7°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG775631966
Dimensions10.72 × 5.79 × 3.60 mm
L/W Ratio1.85
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
10.72 mm5.79 mm1.28 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG775631966
Side View
Table 57.0%Crown 35.7°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 62.2%

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 30
Current: €1,246 EUR|Low: €417 EUR|High: €1,344 EUR|Avg: €757 EUR|-6.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 6€417 EUR
Retailer 3€500 EUR
Retailer 2€541 EUR
Retailer 5€601 EUR
Retailer 4€805 EUR
Retailer 7€1,039 EUR
Retailer 8€1,065 EUR
MOH London€1,246 EUR

41 data points across 8 retailers

8 retailers€417 EUR to €1,246 EUR

A
Cheapest Retailer
-
€417 EUR
$468 USD
A
Retailer 2
-
€500 EUR
View
A
Retailer 3
-
€541 EUR
£477 GBP
View
A
Retailer 4
-
€601 EUR
$674 USD
View
B+
Retailer 5
-
€805 EUR
$903 USD
View
B
Retailer 6
-
€1,039 EUR
$1,165 USD
View
Retailer 7
-
€1,065 EUR
A$1,837 AUD
View
Price last confirmed 30 days ago
Most Expensive
B
MOH London
LG775631966 · Oct 29
€1,246 EUR
£1,100 GBP
View
7 more retailers have this diamond
Prices start from €417 EURSave up to €828 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 Marquise
€417 EUR