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Radiant|Lab Grown|IGI

1.35ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG728540141

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

Certificate IGI LG728540141

Diamond specifications and retailer prices

From $538 NZD
$303 USD
As of October 30, 2026
Save $3,490 NZD (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,028 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.35ct lab-grown radiant diamond

This 1.35ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG728540141 or 728540141. Listed at 22 retailers as of October 30, 2026, with prices from $538 to $4,028, a $3,490 spread on the same certified stone. Brilliant Earth lists it at $4,028. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.35
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.5°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728540141
Dimensions7.81 × 5.46 × 3.65 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.81 mm5.46 mm1.35 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728540141
Side View
Table 66.0%Crown 44.5°Girdle: Slightly ThickPavilion 34.9°Culet: NoneDepth 66.8%

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 30
Current: $4,028 NZD|Low: $516 NZD|High: $4,028 NZD|Avg: $1,530 NZD|+1.3%
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
November 1, 2026
Retailer 3$538 NZD
Retailer 7$601 NZD
Retailer 4$667 NZD
Retailer 15$896 NZD
Retailer 11$940 NZD
Retailer 6$1,114 NZD
Retailer 8$1,129 NZD
Retailer 10$1,146 NZD
Retailer 2$1,185 NZD
Retailer 9$1,627 NZD
Retailer 14$2,049 NZD
Retailer 5$2,169 NZD
Retailer 12$2,677 NZD
Retailer 13$3,300 NZD
Brilliant Earth$4,028 NZD

45 data points across 15 retailers

22 retailers$538 NZD to $4,028 NZD

A
Cheapest Retailer
-
$538 NZD
$303 USD
A
Retailer 2
-
$601 NZD
$339 USD
View
Final sale: no returns
A
Retailer 3
-
$625 NZD
$352 USD
View
A
Retailer 4
-
$667 NZD
$376 USD
View
A
Retailer 5
-
$667 NZD
$376 USD
View
A
Retailer 6
-
$896 NZD
$505 USD
View
A
Retailer 7
-
$940 NZD
$530 USD
View
A
Retailer 8
-
$1,114 NZD
$628 USD
View
A
Retailer 9
-
$1,129 NZD
€606 EUR
View
A
Retailer 10
-
$1,146 NZD
ZAR 10,434 ZAR
View
A
Retailer 11
-
$1,185 NZD
£526 GBP
View
B+
Retailer 12
-
$1,627 NZD
A$1,411 AUD
View
B+
Retailer 13
-
$1,725 NZD
$972 USD
View
B+
Retailer 14
-
$1,790 NZD
$1,009 USD
View
B+
Retailer 15
-
$2,049 NZD
$1,155 USD
View
B+
Retailer 16
-
$2,143 NZD
$1,208 USD
View
Retailer 17
-
$2,169 NZD
A$1,881 AUD
View
Price last confirmed 29 days ago
B+
Retailer 18
-
$2,228 NZD
$1,256 USD
View
B+
Retailer 19
-
$2,677 NZD
£1,188 GBP
View
B
Retailer 20
-
$2,702 NZD
$1,523 USD
View
Retailer 21
-
$3,300 NZD
$1,860 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
15548548A · Oct 31
$4,028 NZD
$2,270 USD
View
21 more retailers have this diamond
Prices start from $538 NZDSave up to $3,490 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
1.35ct Radiant
$538 NZD