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Marquise|Lab Grown|IGI

1.25ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG850604664

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG850604664

Diamond specifications and retailer prices

From €311 EUR
As of November 4, 2026
Save €1,560 EUR (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,871 EUR at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.25ct lab-grown marquise diamond

This 1.25ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG850604664 or 850604664. Listed at 15 retailers as of November 4, 2026, with prices from €311 to €1,871, a €1,560 spread on the same certified stone. Brilliant Earth lists it at €1,871. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850604664
Dimensions11.01 × 5.64 × 3.55 mm
L/W Ratio1.95
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
11.01 mm5.64 mm1.25 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850604664
Side View
Table 58.0%Crown 35.7°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €521 EUR|Low: €375 EUR|High: €1,479 EUR|Avg: €838 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7€375 EUR
Retailer 5€395 EUR
Retailer 9€445 EUR
Retailer 1€521 EUR
Retailer 12€545 EUR
Retailer 8€687 EUR
Retailer 6€756 EUR
Retailer 4€882 EUR
Retailer 10€941 EUR
Retailer 11€1,278 EUR
Retailer 2€1,295 EUR
Retailer 3€1,479 EUR

4 data points across 12 retailers

15 retailers€311 EUR to €1,871 EUR

A
Cheapest Retailer
-
€311 EUR
A
Retailer 2
-
€375 EUR
View
Final sale: no returns
A
Retailer 3
-
€395 EUR
View
A
Retailer 4
-
€445 EUR
View
A
Retailer 5
-
€521 EUR
View
A
Retailer 6
-
€545 EUR
View
A
Retailer 7
-
€687 EUR
View
A
Retailer 8
-
€756 EUR
View
B+
Retailer 9
-
€882 EUR
View
B+
Retailer 10
-
€941 EUR
View
B+
Retailer 11
-
€1,240 EUR
View
B+
Retailer 12
-
€1,278 EUR
View
B+
Retailer 13
-
€1,295 EUR
View
B
Retailer 14
-
€1,479 EUR
View
Most Expensive
B
Brilliant Earth
22501119A · Nov 4
€1,871 EUR
$2,100 USD
View
14 more retailers have this diamond
Prices start from €311 EURSave up to €1,560 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
1.25ct Marquise
€311 EUR