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Round|Lab Grown|IGI

1.21ct F VS2 Round Lab Grown Diamond

ID • F/VS2 • IGI LG815699055

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815699055

Diamond specifications and retailer prices

From $171 USD
As of November 5, 2026
Save $817 USD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $988 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG815699055 or 815699055. Listed at 18 retailers as of November 2, 2026, with prices from $171 to $988, a $817 spread on the same certified stone. MOH London lists it at $988. 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
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815699055
Dimensions6.86 × 6.80 × 4.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.86 mm6.80 mm1.21 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815699055
Side View
Table 55.0%Crown 34.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.1%

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 5
Current: $988 USD|Low: $171 USD|High: $1,011 USD|Avg: $489 USD|-2.1%
MOH London
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
November 5, 2026
Retailer 11$171 USD
Retailer 10$198 USD
Retailer 6$211 USD
Retailer 2$372 USD
Retailer 14$377 USD
Retailer 9$394 USD
Retailer 7$455 USD
Retailer 12$460 USD
Retailer 13$610 USD
Retailer 5$680 USD
Retailer 8$718 USD
Retailer 3$734 USD
Retailer 4$755 USD
MOH London$988 USD

44 data points across 14 retailers

18 retailers$171 USD to $988 USD

A
Cheapest Retailer
-
$171 USD
A
Retailer 2
-
$198 USD
View
A
Retailer 3
-
$211 USD
View
Retailer 4
-
$214 USD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$372 USD
View
A
Retailer 6
-
$377 USD
View
A
Retailer 7
-
$390 USD
View
A
Retailer 8
-
$394 USD
View
B+
Retailer 9
-
$455 USD
View
B+
Retailer 10
-
$460 USD
View
B+
Retailer 11
-
$535 USD
View
B+
Retailer 12
-
$600 USD
View
B+
Retailer 13
-
$610 USD
View
B
Retailer 14
-
$680 USD
View
B
Retailer 15
-
$718 USD
View
B
Retailer 16
-
$734 USD
View
B
Retailer 17
-
$755 USD
View
Most Expensive
B
MOH London
LG815699055 · Nov 2
$988 USD
£778 GBP
View
17 more retailers have this diamond
Prices start from $171 USDSave up to $817 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 Round
$171 USD