Marquise|Lab Grown|IGI

1.21ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG852648471

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG852648471

Diamond specifications and retailer prices

From $539 USD
As of November 1, 2026
Save $1,693 USD (76%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,508 USD at MOH London · As of November 1, 2026
View at MOH London

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 LG852648471 or 852648471. Listed at 7 retailers as of November 1, 2026, with a 314% 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
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG852648471
Dimensions10.80 × 5.49 × 3.47 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.80 mm5.49 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG852648471
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 63.2%

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: Nov 1
Current: $2,508 USD|Low: $539 USD|High: $2,508 USD|Avg: $1,387 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 4$539 USD
Retailer 3$805 USD
Retailer 5$823 USD
Retailer 2$989 USD
Retailer 6$1,960 USD
Retailer 7$2,232 USD
MOH London$2,508 USD

5 data points across 7 retailers

7 retailers$539 USD to $2,232 USD

A
Cheapest Retailer
-
$539 USD
B+
Retailer 2
-
$805 USD
View
B+
Retailer 3
-
$823 USD
View
B
Retailer 4
-
$989 USD
£778 GBP
View
B
Retailer 5
-
$1,960 USD
View
B
Retailer 6
-
$2,232 USD
View
Most Expensive
MOH London
LG852648471 · Nov 1
$2,508 USD
£1,975 GBP
View
Price under review
6 more retailers have this diamond
Prices start from $539 USDSave up to $1,693 USD

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
$539 USD