Princess|Lab Grown|IGI

1.21ct F VS1 Princess Lab Grown Diamond

ID • F/VS1 • IGI LG828668799

Shape and cutting style on the report: Princess cut

Certificate IGI LG828668799

Diamond specifications and retailer prices

From $178 USD
As of November 2, 2026
Save $853 USD (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,031 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.21ct lab-grown princess diamond

This 1.21ct lab-grown princess 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 LG828668799 or 828668799. Listed at 9 retailers as of November 2, 2026, with prices from $178 to $1,031, a $853 spread on the same certified stone. MOH London lists it at $1,031. 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 angle42.6°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828668799
Dimensions5.91 × 5.81 × 4.03 mm
L/W Ratio1.02
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.91 mm5.81 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828668799
Side View
Table 70.0%Crown 42.6°Girdle: MediumPavilion 37.9°Culet: NoneDepth 69.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $1,031 USD|Low: $178 USD|High: $1,066 USD|Avg: $630 USD|-3.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$178 USD
Retailer 4$206 USD
Retailer 7$265 USD
Retailer 3$380 USD
Retailer 2$538 USD
Retailer 9$709 USD
Retailer 5$749 USD
Retailer 8$763 USD
Retailer 10$913 USD
MOH London$1,031 USD

26 data points across 10 retailers

9 retailers$178 USD to $1,031 USD

A
Cheapest Retailer
-
$178 USD
A
Retailer 2
-
$206 USD
View
A
Retailer 3
-
$380 USD
€362 EUR
View
B+
Retailer 4
-
$538 USD
A$827 AUD
View
B+
Retailer 5
-
$709 USD
View
B
Retailer 6
-
$749 USD
View
B
Retailer 7
-
$763 USD
View
Retailer 8
-
$913 USD
SGD 1,234 SGD
View
Price last confirmed 21 days ago
Most Expensive
B
MOH London
LG828668799 · Nov 2
$1,031 USD
£812 GBP
View
8 more retailers have this diamond
Prices start from $178 USDSave up to $853 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 Princess
$178 USD