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Round|Lab Grown|IGI

1.20ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG670445426

Shape and cutting style on the report: Round brilliant

Certificate IGI LG670445426

Diamond specifications and retailer prices

From $269 USD
As of November 4, 2026
Save $924 USD (77%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,193 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.2ct lab-grown round diamond

This 1.2ct 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 LG670445426 or 670445426. Listed at 20 retailers as of November 2, 2026, with prices from $269 to $1,193, a $924 spread on the same certified stone. MOH London lists it at $1,193. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670445426
Dimensions6.77 × 6.81 × 4.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.77 mm6.81 mm1.20 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670445426
Side View
Table 57.0%Crown 35.7°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.1%

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: $1,193 USD|Low: $278 USD|High: $1,205 USD|Avg: $626 USD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 2$278 USD
Retailer 3$418 USD
Retailer 8$485 USD
Retailer 5$512 USD
Retailer 10$513 USD
Retailer 6$515 USD
Retailer 4$557 USD
Retailer 9$728 USD
Retailer 11$880 USD
Retailer 7$960 USD
MOH London$1,193 USD

37 data points across 11 retailers

20 retailers$269 USD to $1,193 USD

A
Cheapest Retailer
-
$269 USD
Final sale: no returns
A
Retailer 2
-
$278 USD
View
Retailer 3
-
$298 USD
View
Price last confirmed 11 days ago
B+
Retailer 4
-
$408 USD
View
B+
Retailer 5
-
$418 USD
View
Retailer 6
-
$481 USD
View
Price last confirmed 126 days ago
B+
Retailer 7
-
$485 USD
View
B+
Retailer 8
-
$512 USD
View
B+
Retailer 9
-
$513 USD
View
B+
Retailer 10
-
$515 USD
View
B+
Retailer 11
-
$557 USD
View
B+
Retailer 12
-
$611 USD
View
B
Retailer 13
-
$728 USD
View
B
Retailer 14
-
$756 USD
View
B
Retailer 15
-
$880 USD
View
B
Retailer 16
-
$959 USD
View
B
Retailer 17
-
$960 USD
View
B
Retailer 18
-
$1,008 USD
View
B
Retailer 19
-
$1,057 USD
View
Most Expensive
B
MOH London
LG670445426 · Nov 2
$1,193 USD
£939 GBP
View
19 more retailers have this diamond
Prices start from $269 USDSave up to $924 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
1.20ct Round
$269 USD