Radiant|Lab Grown|IGI

1.45ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG790606540

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

Certificate IGI LG790606540

Diamond specifications and retailer prices

From $263 USD
As of October 30, 2026
Save $2,467 USD (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,350 USD at Brilliant Earth · As of September 19, 2026
View at Brilliant Earth

About this 1.45ct lab-grown radiant diamond

This 1.45ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790606540 or 790606540. Listed at 13 retailers as of October 30, 2026, with a 938% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790606540
Dimensions7.80 × 5.64 × 3.87 mm
L/W Ratio1.38
Culet sizePointed
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
7.80 mm5.64 mm1.45 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790606540
Side View
Table 60.0%Crown 39.8°Girdle: MediumPavilion 36.5°Culet: NoneDepth 68.6%

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: Oct 30
Current: $2,730 USD|Low: $263 USD|High: $3,350 USD|Avg: $1,555 USD|-18.5%
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
October 30, 2026
Retailer 10$263 USD
Retailer 15$305 USD
Retailer 9$515 USD
Retailer 13$544 USD
Retailer 12$1,003 USD
Retailer 14$1,159 USD
Retailer 3$1,168 USD
Retailer 7$1,211 USD
Retailer 8$1,215 USD
Retailer 4$1,220 USD
Retailer 2$1,452 USD
Retailer 5$1,836 USD
Retailer 11$2,340 USD
Retailer 6$2,565 USD
Brilliant Earth$2,730 USD
Retailer 16$2,990 USD

29 data points across 16 retailers

13 retailers$263 USD to $2,730 USD

A
Cheapest Retailer
-
$263 USD
A
Retailer 2
-
$305 USD
View
A
Retailer 3
-
$515 USD
View
A
Retailer 4
-
$544 USD
View
B+
Retailer 5
-
$1,003 USD
View
Retailer 6
-
$1,094 USD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
$1,159 USD
View
B+
Retailer 8
-
$1,168 USD
View
B+
Retailer 9
-
$1,452 USD
£1,143 GBP
View
B
Retailer 10
-
$2,340 USD
View
B
Retailer 11
-
$2,730 USD
View
Retailer 12
-
$2,990 USD
View
Price last confirmed 12 days ago
Most Expensive
Brilliant Earth
20712956Y · Sep 19
$3,350 USD
View
Price last confirmed 41 days ago
12 more retailers have this diamond
Prices start from $263 USDSave up to $2,467 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
1.45ct Radiant
$263 USD