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Round|Lab Grown|IGI

1.21ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG638478663

Shape and cutting style on the report: Round brilliant

Certificate IGI LG638478663

Diamond specifications and retailer prices

From $2,935 CAD
$2,100 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $2,935 CAD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG638478663 or 638478663. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
G
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG638478663
Dimensions6.84 × 6.88 × 4.19 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
6.84 mm6.88 mm1.21 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG638478663
Side View
Table 59.0%Crown 33.4°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $930 CAD|Low: $930 CAD|High: $2,227 CAD|Avg: $1,493 CAD|-0.0%
Retailer 1
Retailer 2
Retailer 3
January 9, 2026
Retailer 1$930 CAD
Retailer 3$1,156 CAD
Retailer 2$2,162 CAD

11 data points across 3 retailers

1 retailer

B
Brilliant Earth
14711276A · Nov 2
$2,935 CAD
$2,100 USD
View

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B
1.21ct Round
$2,935 CAD