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Marquise|Lab Grown|IGI

1.21ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG778631948

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG778631948

Diamond specifications and retailer prices

From €334 EUR
As of November 6, 2026
Save €1,020 EUR (75%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €1,354 EUR at Michael Trio · As of November 6, 2026
View at Michael Trio

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778631948 or 778631948. Listed at 6 retailers as of November 6, 2026, with prices from €334 to €1,354, a €1,020 spread on the same certified stone. Michael Trio lists it at €1,354. 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778631948
Dimensions11.55 × 5.52 × 3.42 mm
L/W Ratio2.09
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.55 mm5.52 mm1.21 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778631948
Side View
Table 59.0%Crown 32.4°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.0%

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: Nov 6
Current: €1,354 EUR|Low: €286 EUR|High: €1,354 EUR|Avg: €678 EUR|+18.2%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 12€286 EUR
Retailer 6€334 EUR
Retailer 11€401 EUR
Retailer 13€433 EUR
Retailer 3€516 EUR
Retailer 8€557 EUR
Retailer 7€627 EUR
Retailer 2€710 EUR
Retailer 4€760 EUR
Retailer 9€882 EUR
Retailer 5€955 EUR
Retailer 10€1,173 EUR
Michael Trio€1,354 EUR

17 data points across 13 retailers

6 retailers€334 EUR to €1,354 EUR

A
Cheapest Retailer
-
€334 EUR
B+
Retailer 2
-
€557 EUR
View
B+
Retailer 3
-
€627 EUR
View
B+
Retailer 4
-
€710 EUR
View
B
Retailer 5
-
€882 EUR
View
Most Expensive
B
Michael Trio
2088379568 · Nov 6
€1,354 EUR
SGD 2,043 SGD
View
5 more retailers have this diamond
Prices start from €334 EURSave up to €1,020 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
€334 EUR