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Round|Lab Grown|IGI

1.21ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG838629893

Shape and cutting style on the report: Round brilliant

Certificate IGI LG838629893

Diamond specifications and retailer prices

From $173 USD
As of November 1, 2026
Save $830 USD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,003 USD at MOH London · As of November 1, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG838629893 or 838629893. Listed at 19 retailers as of November 1, 2026, with prices from $173 to $1,003, a $830 spread on the same certified stone. MOH London lists it at $1,003. 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 angle33°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838629893
Dimensions6.95 × 6.92 × 4.14 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.95 mm6.92 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838629893
Side View
Table 60.0%Crown 33°Girdle: MediumPavilion 40.9°Culet: NoneDepth 59.6%

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 1
Current: $1,003 USD|Low: $173 USD|High: $1,057 USD|Avg: $485 USD|-5.0%
MOH London
Retailer 2
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Retailer 11
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Retailer 19
November 2, 2026
Retailer 3$173 USD
Retailer 17$201 USD
Retailer 9$215 USD
Retailer 11$215 USD
Retailer 2$370 USD
Retailer 14$370 USD
Retailer 4$382 USD
Retailer 12$383 USD
Retailer 19$390 USD
Retailer 15$421 USD
Retailer 7$463 USD
Retailer 5$500 USD
Retailer 13$523 USD
Retailer 16$644 USD
Retailer 6$690 USD
Retailer 10$723 USD
Retailer 18$729 USD
Retailer 8$744 USD
MOH London$1,003 USD

33 data points across 19 retailers

19 retailers$173 USD to $1,003 USD

A
Cheapest Retailer
-
$173 USD
A
Retailer 2
-
$201 USD
View
Retailer 3
-
$215 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$215 USD
View
A
Retailer 5
-
$370 USD
£291 GBP
View
A
Retailer 6
-
$370 USD
ZAR 5,983 ZAR
View
A
Retailer 7
-
$382 USD
View
A
Retailer 8
-
$383 USD
£301 GBP
View
A
Retailer 9
-
$390 USD
View
B+
Retailer 10
-
$421 USD
€401 EUR
View
B+
Retailer 11
-
$463 USD
View
B+
Retailer 12
-
$500 USD
View
B+
Retailer 13
-
$523 USD
A$805 AUD
View
B+
Retailer 14
-
$644 USD
A$990 AUD
View
B
Retailer 15
-
$690 USD
View
B
Retailer 16
-
$723 USD
View
B
Retailer 17
-
$729 USD
View
B
Retailer 18
-
$744 USD
View
Most Expensive
B
MOH London
LG838629893 · Nov 1
$1,003 USD
£790 GBP
View
18 more retailers have this diamond
Prices start from $173 USDSave up to $830 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
$173 USD