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Radiant|Lab Grown|IGI

1.59ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG604312858

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

Certificate IGI LG604312858

Diamond specifications and retailer prices

From $484 NZD
$272 USD
As of October 27, 2026
Save $4,822 NZD (91%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: $5,306 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.59ct lab-grown radiant diamond

This 1.59ct 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 LG604312858 or 604312858. Listed at 31 retailers as of October 27, 2026, with prices from $484 to $5,306, a $4,822 spread on the same certified stone. Brilliant Earth lists it at $5,306. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.59
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG604312858
Dimensions8.30 × 5.95 × 3.89 mm
L/W Ratio1.39
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
8.30 mm5.95 mm1.59 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG604312858
Side View
Table 64.0%Crown 39.5°Girdle: MediumPavilion 35.4°Culet: NoneDepth 65.4%

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 27
Current: $5,306 NZD|Low: $484 NZD|High: $5,306 NZD|Avg: $1,939 NZD
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
Retailer 21
Retailer 22
October 30, 2026
Retailer 4$484 NZD
Retailer 17$577 NZD
Retailer 22$881 NZD
Retailer 12$889 NZD
Retailer 5$940 NZD
Retailer 10$1,072 NZD
Retailer 20$1,086 NZD
Retailer 18$1,140 NZD
Retailer 2$1,177 NZD
Retailer 11$1,495 NZD
Retailer 6$1,544 NZD
Retailer 16$1,546 NZD
Retailer 21$1,846 NZD
Retailer 8$2,311 NZD
Retailer 14$2,425 NZD
Retailer 7$2,530 NZD
Retailer 15$2,598 NZD
Retailer 13$2,673 NZD
Retailer 3$2,724 NZD
Retailer 19$3,819 NZD
Retailer 9$4,309 NZD
Brilliant Earth$5,306 NZD

39 data points across 22 retailers

31 retailers$484 NZD to $5,306 NZD

A
Cheapest Retailer
-
$484 NZD
$272 USD
Retailer 2
-
$484 NZD
$272 USD
View
Price last confirmed 21 days ago
Retailer 3
-
$506 NZD
$284 USD
View
Price last confirmed 30 days ago
A
Retailer 4
-
$577 NZD
$324 USD
View
Final sale: no returns
Retailer 5
-
$586 NZD
$329 USD
View
Price last confirmed 32 days ago
Retailer 6
-
$602 NZD
$338 USD
View
Price last confirmed 26 days ago
Retailer 7
-
$618 NZD
$347 USD
View
Price last confirmed 31 days ago
A
Retailer 8
-
$881 NZD
$495 USD
View
A
Retailer 9
-
$889 NZD
HK$3,900 HKD
View
A
Retailer 10
-
$940 NZD
$528 USD
View
A
Retailer 11
-
$1,072 NZD
$602 USD
View
A
Retailer 12
-
$1,086 NZD
€581 EUR
View
A
Retailer 13
-
$1,140 NZD
ZAR 10,343 ZAR
View
A
Retailer 14
-
$1,177 NZD
£521 GBP
View
A
Retailer 15
-
$1,495 NZD
$840 USD
View
A
Retailer 16
-
$1,544 NZD
$867 USD
View
A
Retailer 17
-
$1,546 NZD
A$1,336 AUD
View
A
Retailer 18
-
$1,846 NZD
$1,037 USD
View
Retailer 19
-
$2,133 NZD
$1,198 USD
View
Price last confirmed 19 days ago
B+
Retailer 20
-
$2,133 NZD
$1,198 USD
View
Retailer 21
-
$2,222 NZD
$1,248 USD
View
Price last confirmed 29 days ago
B+
Retailer 22
-
$2,311 NZD
$1,298 USD
View
B+
Retailer 23
-
$2,425 NZD
$1,362 USD
View
B+
Retailer 24
-
$2,530 NZD
$1,421 USD
View
B+
Retailer 25
-
$2,598 NZD
SGD 1,972 SGD
View
B+
Retailer 26
-
$2,673 NZD
£1,182 GBP
View
Retailer 27
-
$2,724 NZD
A$2,354 AUD
View
Price last confirmed 21 days ago
Retailer 28
-
$3,819 NZD
$2,145 USD
View
Price last confirmed 11 days ago
B
Retailer 29
-
$4,309 NZD
$2,420 USD
View
B
Retailer 30
-
$5,036 NZD
£2,227 GBP
View
Most Expensive
B
Brilliant Earth
10094170Y · Oct 29
$5,306 NZD
$2,980 USD
View
30 more retailers have this diamond
Prices start from $484 NZDSave up to $4,822 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
1.59ct Radiant
$484 NZD