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Marquise|Lab Grown|IGI

1.21ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG831628716

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG831628716

Diamond specifications and retailer prices

From €169 EUR
As of November 6, 2026
Save €868 EUR (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,524 EUR at Queensmith · As of October 27, 2026
View at Queensmith

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 LG831628716 or 831628716. Listed at 19 retailers as of November 6, 2026, with a 513% 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

1.21
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831628716
Dimensions10.50 × 5.61 × 3.60 mm
L/W Ratio1.87
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.50 mm5.61 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831628716
Side View
Table 57.0%Crown 34.9°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 64.2%

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 6
Current: €378 EUR|Low: €163 EUR|High: €993 EUR|Avg: €422 EUR|+2.4%
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 7, 2026
Retailer 2€169 EUR
Retailer 7€189 EUR
Retailer 5€196 EUR
Retailer 3€210 EUR
Retailer 6€210 EUR
Retailer 13€282 EUR
Retailer 8€356 EUR
Retailer 14€357 EUR
Retailer 1€378 EUR
Retailer 9€512 EUR
Retailer 10€596 EUR
Retailer 12€608 EUR
Retailer 4€675 EUR
Retailer 15€677 EUR
Retailer 11€987 EUR

46 data points across 15 retailers

19 retailers€169 EUR to €1,037 EUR

A
Cheapest Retailer
-
€169 EUR
A
Retailer 2
-
€189 EUR
View
Final sale: no returns
A
Retailer 3
-
€196 EUR
View
Retailer 4
-
€210 EUR
View
Price last confirmed 13 days ago
A
Retailer 5
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€210 EUR
View
B+
Retailer 6
-
€282 EUR
View
A
Retailer 7
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€356 EUR
View
A
Retailer 8
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€357 EUR
View
A
Retailer 9
-
€378 EUR
View
A
Retailer 10
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€391 EUR
View
B+
Retailer 11
-
€512 EUR
View
B+
Retailer 12
-
€596 EUR
View
Retailer 13
-
€608 EUR
View
Price last confirmed 10 days ago
B+
Retailer 14
-
€675 EUR
View
B+
Retailer 15
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€677 EUR
View
B+
Retailer 16
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€723 EUR
View
Retailer 17
-
€987 EUR
View
Price last confirmed 9 days ago
B
Retailer 18
-
€1,037 EUR
View
Most Expensive
Queensmith
LG831628716 · Oct 27
€1,524 EUR
£1,340 GBP
View
Price last confirmed 10 days ago
18 more retailers have this diamond
Prices start from €169 EURSave up to €868 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
€169 EUR