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Round|Lab Grown|IGI

1.20ct F FL Round Lab Grown Diamond

ID • F/FL • IGI LG830624065

Shape and cutting style on the report: Round brilliant

Certificate IGI LG830624065

Diamond specifications and retailer prices

From $279 USD
As of November 4, 2026
Save $1,381 USD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,660 USD at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830624065 or 830624065. Listed at 16 retailers as of November 3, 2026, with prices from $279 to $1,660, a $1,381 spread on the same certified stone. Brilliant Earth lists it at $1,660. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830624065
Dimensions6.86 × 6.81 × 4.16 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.86 mm6.81 mm1.20 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830624065
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.9%

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 4
Current: $1,660 USD|Low: $279 USD|High: $2,370 USD|Avg: $833 USD|-30.0%
Brilliant Earth
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
Retailer 15
Retailer 16
November 4, 2026
Retailer 2$279 USD
Retailer 16$289 USD
Retailer 8$313 USD
Retailer 5$475 USD
Retailer 9$517 USD
Retailer 12$519 USD
Retailer 4$540 USD
Retailer 11$580 USD
Retailer 13$633 USD
Retailer 14$949 USD
Retailer 7$1,011 USD
Retailer 15$1,044 USD
Retailer 6$1,098 USD
Retailer 3$1,236 USD
Retailer 10$1,345 USD
Brilliant Earth$1,660 USD

37 data points across 16 retailers

16 retailers$279 USD to $1,660 USD

A
Cheapest Retailer
-
$279 USD
Final sale: no returns
A
Retailer 2
-
$289 USD
View
Retailer 3
-
$313 USD
View
Price last confirmed 10 days ago
A
Retailer 4
-
$475 USD
View
A
Retailer 5
-
$517 USD
View
A
Retailer 6
-
$519 USD
View
A
Retailer 7
-
$540 USD
View
B+
Retailer 8
-
$580 USD
View
B+
Retailer 9
-
$633 USD
View
B
Retailer 10
-
$949 USD
View
B+
Retailer 11
-
$1,011 USD
View
B+
Retailer 12
-
$1,044 USD
View
B+
Retailer 13
-
$1,098 USD
View
B
Retailer 14
-
$1,236 USD
View
B
Retailer 15
-
$1,345 USD
View
Most Expensive
B
Brilliant Earth
21434563A · Nov 3
$1,660 USD
View
15 more retailers have this diamond
Prices start from $279 USDSave up to $1,381 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
$279 USD