Radiant|Lab Grown|IGI

1.54ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG671426516

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

Certificate IGI LG671426516

Diamond specifications and retailer prices

From $284 USD
As of October 30, 2026
Save $3,226 USD (92%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,510 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.54ct lab-grown radiant diamond

This 1.54ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG671426516 or 671426516. Listed at 18 retailers as of October 29, 2026, with prices from $284 to $3,510, a $3,226 spread on the same certified stone. Brilliant Earth lists it at $3,510. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.9°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671426516
Dimensions8.07 × 5.69 × 3.88 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.07 mm5.69 mm1.54 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671426516
Side View
Table 67.0%Crown 46.9°Girdle: MediumPavilion 36.2°Culet: NoneDepth 68.2%

Caratlytics Score

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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: $3,510 USD|Low: $284 USD|High: $3,620 USD|Avg: $1,033 USD|-3.0%
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
Retailer 17
Retailer 18
October 31, 2026
Retailer 4$284 USD
Retailer 3$330 USD
Retailer 10$330 USD
Retailer 9$453 USD
Retailer 13$456 USD
Retailer 16$470 USD
Retailer 18$490 USD
Retailer 7$623 USD
Retailer 8$831 USD
Retailer 5$833 USD
Retailer 15$907 USD
Retailer 2$1,083 USD
Retailer 6$1,166 USD
Retailer 14$1,251 USD
Retailer 11$1,466 USD
Retailer 12$1,568 USD
Retailer 17$2,530 USD
Brilliant Earth$3,510 USD

35 data points across 18 retailers

18 retailers$284 USD to $3,510 USD

A
Cheapest Retailer
-
$284 USD
A
Retailer 2
-
$330 USD
View
Final sale: no returns
A
Retailer 3
-
$330 USD
View
A
Retailer 4
-
$453 USD
View
A
Retailer 5
-
$456 USD
View
A
Retailer 6
-
$470 USD
View
A
Retailer 7
-
$490 USD
View
Retailer 8
-
$623 USD
€593 EUR
View
Price last confirmed 8 days ago
A
Retailer 9
-
$831 USD
View
A
Retailer 10
-
$833 USD
View
A
Retailer 11
-
$907 USD
A$1,396 AUD
View
B+
Retailer 12
-
$1,083 USD
View
B+
Retailer 13
-
$1,166 USD
View
B+
Retailer 14
-
$1,251 USD
View
B+
Retailer 15
-
$1,466 USD
A$2,255 AUD
View
B+
Retailer 16
-
$1,568 USD
£1,235 GBP
View
B
Retailer 17
-
$2,530 USD
View
Most Expensive
B
Brilliant Earth
16298721A · Oct 29
$3,510 USD
View
17 more retailers have this diamond
Prices start from $284 USDSave up to $3,226 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
1.54ct Radiant
$284 USD