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Marquise|Lab Grown|IGI

1.21ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG664410393

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG664410393

Diamond specifications and retailer prices

From $308 USD
As of November 4, 2026
Save $1,198 USD (80%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,440 USD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

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 LG664410393 or 664410393. Listed at 21 retailers as of November 4, 2026, with a 389% 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 angle34.8°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG664410393
Dimensions10.77 × 5.60 × 3.53 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.77 mm5.60 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG664410393
Side View
Table 59.0%Crown 34.8°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.0%

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: Nov 4
Current: $2,440 USD|Low: $252 USD|High: $2,440 USD|Avg: $865 USD
Do Amore Diamonds
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
Retailer 16
November 5, 2026
Retailer 6$308 USD
Retailer 14$359 USD
Retailer 4$500 USD
Retailer 16$564 USD
Retailer 11$649 USD
Retailer 2$662 USD
Retailer 15$690 USD
Retailer 12$772 USD
Retailer 10$926 USD
Retailer 8$985 USD
Retailer 13$1,049 USD
Retailer 5$1,375 USD
Retailer 7$1,412 USD
Retailer 3$1,430 USD
Retailer 9$1,506 USD
Do Amore Diamonds$2,440 USD

43 data points across 16 retailers

21 retailers$308 USD to $1,506 USD

Retailer 1
-
$226 USD
Price last confirmed 29 days ago
Retailer 2
-
$262 USD
View
Price last confirmed 22 days ago
Retailer 3
-
$280 USD
View
Price last confirmed 25 days ago
Retailer 4
-
$280 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
$308 USD
View
Final sale: no returns
A
Retailer 6
-
$359 USD
View
A
Retailer 7
-
$500 USD
View
B+
Retailer 8
-
$564 USD
View
B+
Retailer 9
-
$649 USD
View
B+
Retailer 10
-
$662 USD
View
B+
Retailer 11
-
$690 USD
View
Retailer 12
-
$772 USD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$926 USD
View
B
Retailer 14
-
$985 USD
View
Retailer 15
-
$993 USD
View
Price last confirmed 37 days ago
B
Retailer 16
-
$1,049 USD
View
B
Retailer 17
-
$1,375 USD
View
B
Retailer 18
-
$1,412 USD
View
B
Retailer 19
-
$1,430 USD
View
B
Retailer 20
-
$1,506 USD
View
Most Expensive
Do Amore Diamonds
27-9567E5BB6 · Nov 4
$2,440 USD
View
Price under review
20 more retailers have this diamond
Prices start from $308 USDSave up to $1,198 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
$308 USD