Radiant|Lab Grown|IGI

1.74ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG649400592

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

Certificate IGI LG649400592

Diamond specifications and retailer prices

From $374 USD
As of October 28, 2026
Save $3,126 USD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,990 USD at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

About this 1.74ct lab-grown radiant diamond

This 1.74ct 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 LG649400592 or 649400592. Listed at 14 retailers as of October 28, 2026, with a 836% 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

1.74
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG649400592
Dimensions8.74 × 5.95 × 3.89 mm
L/W Ratio1.47
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.74 mm5.95 mm1.74 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG649400592
Side View
Table 65.0%Crown 41°Girdle: ThickPavilion 34°Culet: NoneDepth 65.0%

Caratlytics Score

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

Price History

Last verified: Oct 28
Current: $3,500 USD|Low: $374 USD|High: $3,990 USD|Avg: $1,672 USD|-12.3%
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
October 29, 2026
Retailer 13$374 USD
Retailer 10$474 USD
Retailer 7$570 USD
Retailer 3$671 USD
Retailer 14$787 USD
Retailer 2$825 USD
Retailer 11$1,037 USD
Retailer 8$1,063 USD
Retailer 12$1,540 USD
Retailer 5$1,629 USD
Retailer 4$1,663 USD
Retailer 6$2,863 USD
Retailer 9$2,970 USD
Brilliant Earth$3,500 USD

4 data points across 14 retailers

14 retailers$374 USD to $3,500 USD

A
Cheapest Retailer
-
$374 USD
Final sale: no returns
A
Retailer 2
-
$474 USD
£374 GBP
View
Retailer 3
-
$570 USD
View
A
Retailer 4
-
$671 USD
View
A
Retailer 5
-
$787 USD
ZAR 12,718 ZAR
View
A
Retailer 6
-
$825 USD
£649 GBP
View
A
Retailer 7
-
$1,037 USD
View
Retailer 8
-
$1,063 USD
A$1,636 AUD
View
B+
Retailer 9
-
$1,540 USD
View
B+
Retailer 10
-
$1,629 USD
View
B+
Retailer 11
-
$1,663 USD
SGD 2,247 SGD
View
Retailer 12
-
$2,970 USD
View
B
Retailer 13
-
$3,500 USD
View
Most Expensive
B
Brilliant Earth
13718859B · Oct 21
$3,990 USD
View
Price last confirmed 8 days ago
13 more retailers have this diamond
Prices start from $374 USDSave up to $3,126 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
1.74ct Radiant
$374 USD