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Radiant|Lab Grown|IGI

1.74ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG818654254

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

Certificate IGI LG818654254

Diamond specifications and retailer prices

From $420 AUD
$295 USD
As of October 27, 2026
Save $4,576 AUD (92%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,996 AUD at Brilliant Earth · As of October 29, 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 LG818654254 or 818654254. Listed at 21 retailers as of October 27, 2026, with prices from $420 to $4,996, a $4,576 spread on the same certified stone. Brilliant Earth lists it at $4,996. 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 angle29.3°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818654254
Dimensions8.22 × 5.92 × 4.07 mm
L/W Ratio1.39
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
8.22 mm5.92 mm1.74 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818654254
Side View
Table 64.0%Crown 29.3°Girdle: MediumPavilion 36.7°Culet: NoneDepth 68.8%

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: $4,996 AUD|Low: $484 AUD|High: $5,167 AUD|Avg: $1,678 AUD|-3.3%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 5$484 AUD
Retailer 15$537 AUD
Retailer 14$740 AUD
Retailer 8$853 AUD
Retailer 13$895 AUD
Retailer 4$904 AUD
Retailer 2$920 AUD
Retailer 16$942 AUD
Retailer 12$1,211 AUD
Retailer 18$1,325 AUD
Retailer 7$1,742 AUD
Retailer 3$1,821 AUD
Retailer 6$1,862 AUD
Retailer 9$1,862 AUD
Retailer 11$2,097 AUD
Retailer 10$2,468 AUD
Retailer 17$3,829 AUD
Brilliant Earth$4,996 AUD

29 data points across 18 retailers

21 retailers$420 AUD to $4,996 AUD

A
Cheapest Retailer
-
$420 AUD
$295 USD
A
Retailer 2
-
$484 AUD
$340 USD
View
Final sale: no returns
A
Retailer 3
-
$521 AUD
$366 USD
View
A
Retailer 4
-
$521 AUD
$366 USD
View
A
Retailer 5
-
$537 AUD
£297 GBP
View
A
Retailer 6
-
$740 AUD
$520 USD
View
A
Retailer 7
-
$853 AUD
$599 USD
View
A
Retailer 8
-
$895 AUD
ZAR 10,154 ZAR
View
A
Retailer 9
-
$904 AUD
$635 USD
View
A
Retailer 10
-
$920 AUD
£509 GBP
View
A
Retailer 11
-
$942 AUD
€630 EUR
View
A
Retailer 12
-
$1,211 AUD
View
A
Retailer 13
-
$1,325 AUD
$931 USD
View
A
Retailer 14
-
$1,742 AUD
$1,224 USD
View
B+
Retailer 15
-
$1,821 AUD
$1,279 USD
View
B+
Retailer 16
-
$1,862 AUD
$1,308 USD
View
B+
Retailer 17
-
$1,862 AUD
SGD 1,768 SGD
View
B+
Retailer 18
-
$2,097 AUD
£1,160 GBP
View
B+
Retailer 19
-
$2,468 AUD
$1,734 USD
View
B
Retailer 20
-
$3,829 AUD
$2,690 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
21433885A · Oct 29
$4,996 AUD
$3,510 USD
View
20 more retailers have this diamond
Prices start from $420 AUDSave up to $4,576 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
$420 AUD