Marquise|Lab Grown|IGI

1.21ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG836683974

Certificate IGI LG836683974

Diamond specifications and retailer prices

From €259 EUR
$290 USD
As of October 30, 2026
Save €140 EUR (35%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €399 EUR at Adiamor · As of October 30, 2026
View at Adiamor

About this 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG836683974 or 836683974. Listed at 3 retailers as of October 30, 2026, with prices from €259 to €399, a €140 spread on the same certified stone. Adiamor lists it at €399. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG836683974
Dimensions10.58 × 5.51 × 3.59 mm
L/W Ratio1.92
Top View
10.58 mm5.51 mm1.21 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836683974
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 65.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €399 EUR|Low: €259 EUR|High: €399 EUR|Avg: €326 EUR
Adiamor
Retailer 2
Retailer 3
October 18, 2026
Retailer 3€259 EUR
Retailer 2€329 EUR
Adiamor€399 EUR

11 data points across 3 retailers

3 retailers€259 EUR to €399 EUR

B+
Cheapest Retailer
-
€259 EUR
$290 USD
A
Retailer 2
-
€329 EUR
View
Most Expensive
B+
Adiamor
D-82383392 · Oct 30
€399 EUR
$447 USD
View
2 more retailers have this diamond
Prices start from €259 EURSave up to €140 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
€259 EUR