CaratHunter
Plans
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 €333 EUR
$373 USD
As of October 30, 2026
Save €1,015 EUR (75%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €1,348 EUR at Michael Trio · As of October 31, 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 October 30, 2026, with prices from €333 to €1,348, a €1,015 spread on the same certified stone. Michael Trio lists it at €1,348. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €1,348 EUR|Low: €284 EUR|High: €1,348 EUR|Avg: €674 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
October 27, 2026
Retailer 12€284 EUR
Retailer 6€333 EUR
Retailer 11€400 EUR
Retailer 13€432 EUR
Retailer 3€514 EUR
Retailer 8€555 EUR
Retailer 7€624 EUR
Retailer 2€701 EUR
Retailer 4€757 EUR
Retailer 9€879 EUR
Retailer 5€950 EUR
Retailer 10€1,168 EUR
Michael Trio€1,348 EUR

16 data points across 13 retailers

6 retailers€333 EUR to €1,348 EUR

A
Cheapest Retailer
-
€333 EUR
$373 USD
B+
Retailer 2
-
€555 EUR
A$958 AUD
View
B+
Retailer 3
-
€624 EUR
$700 USD
View
B+
Retailer 4
-
€701 EUR
A$1,210 AUD
View
B
Retailer 5
-
€879 EUR
$986 USD
View
Most Expensive
B
Michael Trio
2088379568 · Oct 31
€1,348 EUR
SGD 2,043 SGD
View
5 more retailers have this diamond
Prices start from €333 EURSave up to €1,015 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
€333 EUR