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Marquise|Lab Grown|IGI

1.21ct F IF Marquise Lab Grown Diamond

ID • F/IF • IGI LG786675964

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG786675964

Diamond specifications and retailer prices

From €244 EUR
As of November 5, 2026
Save €1,333 EUR (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,577 EUR at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG786675964 or 786675964. Listed at 17 retailers as of November 4, 2026, with prices from €244 to €1,577, a €1,333 spread on the same certified stone. Brilliant Earth lists it at €1,577. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786675964
Dimensions11.19 × 5.56 × 3.40 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.19 mm5.56 mm1.21 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786675964
Side View
Table 59.0%Crown 35.1°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 61.2%

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: €947 EUR|Low: €244 EUR|High: €1,134 EUR|Avg: €656 EUR|-3.2%
Retailer 1
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 8€244 EUR
Retailer 12€255 EUR
Retailer 4€367 EUR
Retailer 7€419 EUR
Retailer 2€471 EUR
Retailer 6€506 EUR
Retailer 10€511 EUR
Retailer 3€551 EUR
Retailer 15€666 EUR
Retailer 5€719 EUR
Retailer 9€875 EUR
Retailer 13€878 EUR
Retailer 14€920 EUR
Retailer 1€947 EUR
Retailer 11€1,087 EUR

25 data points across 15 retailers

17 retailers€244 EUR to €1,577 EUR

A
Cheapest Retailer
-
€244 EUR
Final sale: no returns
A
Retailer 2
-
€255 EUR
View
A
Retailer 3
-
€367 EUR
View
Retailer 4
-
€419 EUR
View
Price last confirmed 13 days ago
A
Retailer 5
-
€471 EUR
View
Retailer 6
-
€506 EUR
View
Price last confirmed 8 days ago
A
Retailer 7
-
€511 EUR
View
A
Retailer 8
-
€551 EUR
View
B+
Retailer 9
-
€666 EUR
View
B+
Retailer 10
-
€719 EUR
View
B+
Retailer 11
-
€875 EUR
View
B+
Retailer 12
-
€878 EUR
View
B+
Retailer 13
-
€920 EUR
View
B+
Retailer 14
-
€947 EUR
View
Retailer 15
-
€993 EUR
View
Price last confirmed 32 days ago
B+
Retailer 16
-
€1,087 EUR
View
Most Expensive
B
Brilliant Earth
18735861A · Nov 4
€1,577 EUR
$1,770 USD
View
16 more retailers have this diamond
Prices start from €244 EURSave up to €1,333 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
1.21ct Marquise
€244 EUR