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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 $373 USD
As of November 6, 2026
Save $1,139 USD (75%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,512 USD at Michael Trio · As of November 6, 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 November 6, 2026, with prices from $373 to $1,512, a $1,139 spread on the same certified stone. Michael Trio lists it at $1,512. 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: Nov 6
Current: $1,512 USD|Low: $319 USD|High: $1,512 USD|Avg: $757 USD|+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
November 6, 2026
Retailer 12$319 USD
Retailer 6$373 USD
Retailer 11$448 USD
Retailer 13$484 USD
Retailer 3$576 USD
Retailer 8$622 USD
Retailer 7$700 USD
Retailer 2$793 USD
Retailer 4$848 USD
Retailer 9$985 USD
Retailer 5$1,066 USD
Retailer 10$1,310 USD
Michael Trio$1,512 USD

17 data points across 13 retailers

6 retailers$373 USD to $1,512 USD

A
Cheapest Retailer
-
$373 USD
B+
Retailer 2
-
$622 USD
View
B+
Retailer 3
-
$700 USD
View
B+
Retailer 4
-
$793 USD
View
B
Retailer 5
-
$985 USD
View
Most Expensive
B
Michael Trio
2088379568 · Nov 6
$1,512 USD
SGD 2,043 SGD
View
5 more retailers have this diamond
Prices start from $373 USDSave up to $1,139 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
$373 USD