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Radiant|Lab Grown|IGI

1.54ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG687580984

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

Certificate IGI LG687580984

Diamond specifications and retailer prices

From $504 NZD
$284 USD
As of October 30, 2026
Save $4,358 NZD (90%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $4,862 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 LG687580984 or 687580984. Listed at 27 retailers as of October 30, 2026, with prices from $504 to $4,862, a $4,358 spread on the same certified stone. Brilliant Earth lists it at $4,862. 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 angle41.1°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687580984
Dimensions8.13 × 5.74 × 3.82 mm
L/W Ratio1.42
Culet sizePointed
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
8.13 mm5.74 mm1.54 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687580984
Side View
Table 65.0%Crown 41.1°Girdle: Slightly ThickPavilion 33.3°Culet: NoneDepth 66.6%

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: $4,862 NZD|Low: $483 NZD|High: $5,997 NZD|Avg: $1,712 NZD|-18.9%
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
Retailer 19
Retailer 20
November 1, 2026
Retailer 7$504 NZD
Retailer 5$561 NZD
Retailer 11$584 NZD
Retailer 9$625 NZD
Retailer 12$625 NZD
Retailer 3$646 NZD
Retailer 15$837 NZD
Retailer 19$905 NZD
Retailer 13$984 NZD
Retailer 18$1,073 NZD
Retailer 2$1,102 NZD
Retailer 17$1,452 NZD
Retailer 14$1,503 NZD
Retailer 10$2,007 NZD
Retailer 4$2,401 NZD
Retailer 16$2,515 NZD
Retailer 6$2,592 NZD
Retailer 8$2,601 NZD
Retailer 20$4,028 NZD
Brilliant Earth$4,862 NZD

38 data points across 20 retailers

27 retailers$504 NZD to $4,862 NZD

A
Cheapest Retailer
-
$504 NZD
$284 USD
A
Retailer 2
-
$561 NZD
$316 USD
View
Final sale: no returns
A
Retailer 3
-
$584 NZD
$329 USD
View
A
Retailer 4
-
$625 NZD
$352 USD
View
A
Retailer 5
-
$625 NZD
$352 USD
View
Retailer 6
-
$646 NZD
£287 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
$837 NZD
$472 USD
View
A
Retailer 8
-
$905 NZD
$510 USD
View
A
Retailer 9
-
$984 NZD
€528 EUR
View
A
Retailer 10
-
$1,073 NZD
ZAR 9,766 ZAR
View
A
Retailer 11
-
$1,102 NZD
£489 GBP
View
A
Retailer 12
-
$1,222 NZD
$689 USD
View
A
Retailer 13
-
$1,322 NZD
$745 USD
View
A
Retailer 14
-
$1,452 NZD
A$1,259 AUD
View
A
Retailer 15
-
$1,503 NZD
$847 USD
View
B+
Retailer 16
-
$1,856 NZD
$1,046 USD
View
B+
Retailer 17
-
$2,007 NZD
$1,131 USD
View
B+
Retailer 18
-
$2,096 NZD
$1,181 USD
View
B+
Retailer 19
-
$2,401 NZD
$1,353 USD
View
B+
Retailer 20
-
$2,434 NZD
£1,080 GBP
View
B+
Retailer 21
-
$2,515 NZD
£1,116 GBP
View
B+
Retailer 22
-
$2,592 NZD
$1,461 USD
View
Retailer 23
-
$2,601 NZD
A$2,255 AUD
View
Price last confirmed 23 days ago
B+
Retailer 24
-
$2,605 NZD
$1,468 USD
View
B+
Retailer 25
-
$2,889 NZD
£1,282 GBP
View
Retailer 26
-
$4,028 NZD
$2,270 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
17795729A · Oct 31
$4,862 NZD
$2,740 USD
View
26 more retailers have this diamond
Prices start from $504 NZDSave up to $4,358 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