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Radiant|Lab Grown|IGI

1.54ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG671426516

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

Certificate IGI LG671426516

Diamond specifications and retailer prices

From $504 NZD
$284 USD
As of October 30, 2026
Save $5,777 NZD (92%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,281 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.54ct lab-grown radiant diamond

This 1.54ct 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 LG671426516 or 671426516. Listed at 18 retailers as of October 30, 2026, with prices from $504 to $6,281, a $5,777 spread on the same certified stone. Brilliant Earth lists it at $6,281. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.9°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671426516
Dimensions8.07 × 5.69 × 3.88 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.07 mm5.69 mm1.54 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671426516
Side View
Table 67.0%Crown 46.9°Girdle: MediumPavilion 36.2°Culet: NoneDepth 68.2%

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 30
Current: $6,281 NZD|Low: $499 NZD|High: $6,423 NZD|Avg: $1,752 NZD|-2.2%
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 31, 2026
Retailer 6$504 NZD
Retailer 5$586 NZD
Retailer 10$586 NZD
Retailer 9$803 NZD
Retailer 16$809 NZD
Retailer 3$834 NZD
Retailer 12$834 NZD
Retailer 11$1,077 NZD
Retailer 2$1,476 NZD
Retailer 7$1,479 NZD
Retailer 18$1,610 NZD
Retailer 13$1,922 NZD
Retailer 8$2,069 NZD
Retailer 17$2,220 NZD
Retailer 14$2,601 NZD
Retailer 15$2,783 NZD
Retailer 4$4,489 NZD
Brilliant Earth$6,281 NZD

35 data points across 18 retailers

18 retailers$504 NZD to $6,281 NZD

A
Cheapest Retailer
-
$504 NZD
$284 USD
A
Retailer 2
-
$586 NZD
$330 USD
View
Final sale: no returns
A
Retailer 3
-
$586 NZD
$330 USD
View
A
Retailer 4
-
$803 NZD
$453 USD
View
A
Retailer 5
-
$809 NZD
$456 USD
View
A
Retailer 6
-
$834 NZD
$470 USD
View
A
Retailer 7
-
$834 NZD
$470 USD
View
A
Retailer 8
-
$1,077 NZD
€578 EUR
View
A
Retailer 9
-
$1,476 NZD
$832 USD
View
A
Retailer 10
-
$1,479 NZD
$833 USD
View
A
Retailer 11
-
$1,610 NZD
A$1,396 AUD
View
B+
Retailer 12
-
$1,922 NZD
$1,083 USD
View
B+
Retailer 13
-
$2,069 NZD
$1,166 USD
View
B+
Retailer 14
-
$2,220 NZD
$1,251 USD
View
B+
Retailer 15
-
$2,601 NZD
A$2,255 AUD
View
B+
Retailer 16
-
$2,783 NZD
£1,235 GBP
View
B
Retailer 17
-
$4,489 NZD
$2,530 USD
View
Most Expensive
B
Brilliant Earth
16298721A · Oct 31
$6,281 NZD
$3,540 USD
View
17 more retailers have this diamond
Prices start from $504 NZDSave up to $5,777 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
1.54ct Radiant
$504 NZD