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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 $532 AUD
$374 USD
As of October 28, 2026
Save $4,450 AUD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,679 AUD 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
Colour
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: $4,982 AUD|Low: $532 AUD|High: $5,679 AUD|Avg: $2,269 AUD|-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 30, 2026
Retailer 13$532 AUD
Retailer 10$675 AUD
Retailer 7$811 AUD
Retailer 3$955 AUD
Retailer 14$1,121 AUD
Retailer 2$1,177 AUD
Retailer 11$1,476 AUD
Retailer 8$1,514 AUD
Retailer 12$2,192 AUD
Retailer 5$2,319 AUD
Retailer 4$2,367 AUD
Retailer 6$4,075 AUD
Retailer 9$4,227 AUD
Brilliant Earth$4,982 AUD

5 data points across 14 retailers

14 retailers$532 AUD to $4,982 AUD

A
Cheapest Retailer
-
$532 AUD
$374 USD
Final sale: no returns
A
Retailer 2
-
$675 AUD
£374 GBP
View
A
Retailer 3
-
$811 AUD
$570 USD
View
A
Retailer 4
-
$955 AUD
$671 USD
View
A
Retailer 5
-
$1,121 AUD
ZAR 12,718 ZAR
View
A
Retailer 6
-
$1,177 AUD
£651 GBP
View
A
Retailer 7
-
$1,476 AUD
$1,037 USD
View
A
Retailer 8
-
$1,514 AUD
View
B+
Retailer 9
-
$2,192 AUD
$1,540 USD
View
B+
Retailer 10
-
$2,319 AUD
$1,629 USD
View
B+
Retailer 11
-
$2,367 AUD
SGD 2,247 SGD
View
B
Retailer 12
-
$4,227 AUD
$2,970 USD
View
B
Retailer 13
-
$4,982 AUD
$3,500 USD
View
Most Expensive
Brilliant Earth
13718859B · Oct 21
$5,679 AUD
$3,990 USD
View
Price last confirmed 8 days ago
13 more retailers have this diamond
Prices start from $532 AUDSave up to $4,450 AUD

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
$532 AUD