CaratHunter
Plans
Radiant|Lab Grown|IGI

1.20ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG743523420

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG743523420

Diamond specifications and retailer prices

From $3,150 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $3,150 USD 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 1.2ct lab-grown radiant diamond

This 1.2ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG743523420 or 743523420. Listed at a single retailer as of October 29, 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

1.20
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743523420
Dimensions7.64 × 5.26 × 3.42 mm
L/W Ratio1.45
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
7.64 mm5.26 mm1.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743523420
Side View
Table 63.0%Crown 42.1°Girdle: MED-STKPavilion 33.5°Culet: NoneDepth 65.0%

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: Oct 29
Current: $3,150 USD|Low: $898 USD|High: $3,150 USD|Avg: $1,779 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
January 17, 2026
Retailer 3$898 USD
Retailer 2$1,173 USD
Retailer 4$1,278 USD
Retailer 5$2,151 USD
Brilliant Earth$3,150 USD

18 data points across 5 retailers

1 retailer

B
Brilliant Earth
16443499A · Oct 29
$3,150 USD
View

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.

B
1.20ct Radiant
$3,150 USD