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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 $664 NZD
$374 USD
As of October 30, 2026
Save $5,546 NZD (89%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,079 NZD 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 30
Current: $6,210 NZD|Low: $664 NZD|High: $7,079 NZD|Avg: $2,829 NZD|-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$664 NZD
Retailer 7$839 NZD
Retailer 9$1,011 NZD
Retailer 3$1,191 NZD
Retailer 14$1,397 NZD
Retailer 8$1,468 NZD
Retailer 12$1,840 NZD
Retailer 10$1,887 NZD
Retailer 2$2,782 NZD
Retailer 5$2,890 NZD
Retailer 4$2,950 NZD
Retailer 6$5,080 NZD
Retailer 11$5,270 NZD
Brilliant Earth$6,210 NZD

5 data points across 14 retailers

14 retailers$664 NZD to $6,210 NZD

A
Cheapest Retailer
-
$664 NZD
$374 USD
Final sale: no returns
A
Retailer 2
-
$839 NZD
£373 GBP
View
A
Retailer 3
-
$1,011 NZD
$570 USD
View
A
Retailer 4
-
$1,191 NZD
$671 USD
View
A
Retailer 5
-
$1,397 NZD
ZAR 12,718 ZAR
View
A
Retailer 6
-
$1,468 NZD
£651 GBP
View
A
Retailer 7
-
$1,840 NZD
$1,037 USD
View
A
Retailer 8
-
$1,887 NZD
A$1,636 AUD
View
B+
Retailer 9
-
$2,782 NZD
$1,568 USD
View
B+
Retailer 10
-
$2,890 NZD
$1,629 USD
View
B+
Retailer 11
-
$2,950 NZD
SGD 2,247 SGD
View
B
Retailer 12
-
$5,270 NZD
$2,970 USD
View
B
Retailer 13
-
$6,210 NZD
$3,500 USD
View
Most Expensive
Brilliant Earth
13718859B · Oct 21
$7,079 NZD
$3,990 USD
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from $664 NZDSave up to $5,546 NZD

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
$664 NZD