Radiant|Lab Grown|IGI

1.45ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG840634776

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

Certificate IGI LG840634776

Diamond specifications and retailer prices

From $304 USD
As of October 27, 2026
Save $2,966 USD (91%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,270 USD at Brilliant Earth · As of October 29, 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 LG840634776 or 840634776. Listed at 22 retailers as of October 27, 2026, with prices from $304 to $3,270, a $2,966 spread on the same certified stone. Brilliant Earth lists it at $3,270. 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 angle46.9°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634776
Dimensions8.05 × 5.54 × 3.78 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
8.05 mm5.54 mm1.45 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634776
Side View
Table 64.0%Crown 46.9°Girdle: STK-THKPavilion 35°Culet: NoneDepth 68.2%

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 27
Current: $3,270 USD|Low: $304 USD|High: $3,270 USD|Avg: $1,096 USD
Brilliant Earth
Retailer 2
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Retailer 22
October 29, 2026
Retailer 8$304 USD
Retailer 20$353 USD
Retailer 11$362 USD
Retailer 7$377 USD
Retailer 19$377 USD
Retailer 16$401 USD
Retailer 18$535 USD
Retailer 22$617 USD
Retailer 21$634 USD
Retailer 17$649 USD
Retailer 2$669 USD
Retailer 10$696 USD
Retailer 4$1,104 USD
Retailer 3$1,160 USD
Retailer 15$1,180 USD
Retailer 6$1,213 USD
Retailer 5$1,261 USD
Retailer 14$1,384 USD
Retailer 13$1,521 USD
Retailer 12$2,694 USD
Retailer 9$3,005 USD
Brilliant Earth$3,270 USD

14 data points across 22 retailers

22 retailers$304 USD to $3,270 USD

A
Cheapest Retailer
-
$304 USD
A
Retailer 2
-
$353 USD
View
A
Retailer 3
-
$362 USD
View
Final sale: no returns
A
Retailer 4
-
$377 USD
View
A
Retailer 5
-
$377 USD
View
A
Retailer 6
-
$401 USD
£316 GBP
View
A
Retailer 7
-
$535 USD
View
A
Retailer 8
-
$617 USD
View
A
Retailer 9
-
$634 USD
View
A
Retailer 10
-
$649 USD
ZAR 10,478 ZAR
View
A
Retailer 11
-
$669 USD
£527 GBP
View
A
Retailer 12
-
$696 USD
€663 EUR
View
B+
Retailer 13
-
$1,104 USD
View
B+
Retailer 14
-
$1,160 USD
View
B+
Retailer 15
-
$1,180 USD
View
B+
Retailer 16
-
$1,213 USD
View
B+
Retailer 17
-
$1,261 USD
View
B+
Retailer 18
-
$1,384 USD
SGD 1,870 SGD
View
B+
Retailer 19
-
$1,521 USD
£1,198 GBP
View
B
Retailer 20
-
$2,694 USD
View
Retailer 21
-
$3,005 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
22142709A · Oct 29
$3,270 USD
View
21 more retailers have this diamond
Prices start from $304 USDSave up to $2,966 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
$304 USD