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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 $295 USD
As of October 27, 2026
Save $3,215 USD (92%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,510 USD 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 $295 to $3,510, a $3,215 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

1.74
Carat
E
Color
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

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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 27
Current: $3,510 USD|Low: $340 USD|High: $3,630 USD|Avg: $1,179 USD|-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$340 USD
Retailer 15$377 USD
Retailer 14$520 USD
Retailer 8$599 USD
Retailer 13$629 USD
Retailer 4$635 USD
Retailer 2$646 USD
Retailer 16$662 USD
Retailer 12$851 USD
Retailer 18$931 USD
Retailer 7$1,224 USD
Retailer 3$1,279 USD
Retailer 6$1,308 USD
Retailer 9$1,308 USD
Retailer 11$1,473 USD
Retailer 10$1,734 USD
Retailer 17$2,690 USD
Brilliant Earth$3,510 USD

29 data points across 18 retailers

21 retailers$295 USD to $3,510 USD

A
Cheapest Retailer
-
$295 USD
A
Retailer 2
-
$340 USD
View
Final sale: no returns
A
Retailer 3
-
$366 USD
View
A
Retailer 4
-
$366 USD
View
A
Retailer 5
-
$377 USD
£297 GBP
View
A
Retailer 6
-
$520 USD
View
A
Retailer 7
-
$599 USD
View
A
Retailer 8
-
$629 USD
ZAR 10,154 ZAR
View
A
Retailer 9
-
$635 USD
View
A
Retailer 10
-
$646 USD
£509 GBP
View
A
Retailer 11
-
$662 USD
€630 EUR
View
A
Retailer 12
-
$851 USD
A$1,309 AUD
View
A
Retailer 13
-
$931 USD
View
A
Retailer 14
-
$1,224 USD
View
B+
Retailer 15
-
$1,279 USD
View
B+
Retailer 16
-
$1,308 USD
View
B+
Retailer 17
-
$1,308 USD
SGD 1,768 SGD
View
B+
Retailer 18
-
$1,473 USD
£1,160 GBP
View
B+
Retailer 19
-
$1,734 USD
View
B
Retailer 20
-
$2,690 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
21433885A · Oct 29
$3,510 USD
View
20 more retailers have this diamond
Prices start from $295 USDSave up to $3,215 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
$295 USD