Radiant|Lab Grown|IGI

1.58ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG671499739

Certificate IGI LG671499739

Diamond specifications and retailer prices

From $544 USD
Save $2,726 USD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,780 USD at Brilliant Earth
View at Brilliant Earth

About this 1.58ct lab-grown radiant diamond

This 1.58ct 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 LG671499739 or 671499739. Listed at 18 retailers, with a 501% 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

1.58
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671499739
Dimensions5.73 × 5.73 × 8.23 mm
L/W Ratio1.00
Culet sizePointed
Top View
5.73 mm5.73 mm1.58 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671499739
Side View
Table 66.0%Crown 44.9°Girdle: MediumPavilion 35.6°Culet: NoneDepth 67.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $3,780 USD|Low: $435 USD|High: $3,970 USD|Avg: $1,616 USD|-4.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 1, 2026
Retailer 11$645 USD
Retailer 7$675 USD
Retailer 10$805 USD
Retailer 5$892 USD
Retailer 3$915 USD
Retailer 6$1,160 USD
Retailer 8$1,256 USD
Retailer 2$1,723 USD
Retailer 12$2,164 USD
Retailer 4$2,527 USD
Retailer 9$3,270 USD
Brilliant Earth$3,780 USD

40 data points across 12 retailers

18 retailers$544 USD to $3,270 USD

A
Cheapest Retailer
-
$544 USD
A
Retailer 2
-
$610 USD
View
A
Retailer 3
-
$645 USD
View
A
Retailer 4
-
$666 USD
View
A
Retailer 5
-
$675 USD
View
A
Retailer 6
-
$805 USD
View
A
Retailer 7
-
$892 USD
View
A
Retailer 8
-
$915 USD
View
A
Retailer 9
-
$1,149 USD
£905 GBP
View
Price last confirmed 8 days ago
A
Retailer 10
-
$1,162 USD
£915 GBP
View
B+
Retailer 11
-
$1,256 USD
ZAR 20,283 ZAR
View
B+
Retailer 12
-
$1,723 USD
A$2,651 AUD
View
B+
Retailer 13
-
$1,956 USD
View
B+
Retailer 14
-
$1,960 USD
View
B
Retailer 15
-
$2,164 USD
£1,704 GBP
View
B
Retailer 16
-
$2,527 USD
View
B
Retailer 17
-
$3,270 USD
£2,575 GBP
View
Most Expensive
B
Brilliant Earth
16298668A · Aug 22
$3,780 USD
View
Price last confirmed 39 days ago
17 more retailers have this diamond
Prices start from $544 USDSave up to $2,726 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.

A
1.58ct Radiant
$544 USD