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Radiant|Lab Grown|IGI

1.30ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG623421879

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

Certificate IGI LG623421879

Diamond specifications and retailer prices

From $469 NZD
$264 USD
As of November 2, 2026
Save $3,494 NZD (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,963 NZD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.3ct lab-grown radiant diamond

This 1.3ct 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 LG623421879 or 623421879. Listed at 24 retailers as of November 2, 2026, with prices from $469 to $3,963, a $3,494 spread on the same certified stone. Brilliant Earth lists it at $3,963. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.30
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle51.7°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623421879
Dimensions7.43 × 5.47 × 3.60 mm
L/W Ratio1.36
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
7.43 mm5.47 mm1.30 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623421879
Side View
Table 61.0%Crown 51.7°Girdle: MED-STKPavilion 33.4°Culet: NoneDepth 65.8%

Caratlytics Score

How it works →
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: Nov 2
Current: $3,963 NZD|Low: $450 NZD|High: $3,963 NZD|Avg: $1,468 NZD|+0.5%
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
November 2, 2026
Retailer 4$469 NZD
Retailer 5$581 NZD
Retailer 8$581 NZD
Retailer 9$614 NZD
Retailer 7$782 NZD
Retailer 16$862 NZD
Retailer 13$920 NZD
Retailer 11$1,001 NZD
Retailer 10$1,112 NZD
Retailer 15$1,413 NZD
Retailer 2$1,491 NZD
Retailer 6$1,866 NZD
Retailer 14$2,033 NZD
Retailer 12$2,327 NZD
Retailer 3$3,252 NZD
Brilliant Earth$3,963 NZD

38 data points across 16 retailers

24 retailers$469 NZD to $3,963 NZD

A
Cheapest Retailer
-
$469 NZD
$264 USD
A
Retailer 2
-
$523 NZD
$294 USD
View
Final sale: no returns
A
Retailer 3
-
$544 NZD
$306 USD
View
Retailer 4
-
$581 NZD
$327 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$581 NZD
$327 USD
View
A
Retailer 6
-
$614 NZD
£272 GBP
View
A
Retailer 7
-
$782 NZD
$440 USD
View
A
Retailer 8
-
$862 NZD
$485 USD
View
A
Retailer 9
-
$920 NZD
€493 EUR
View
A
Retailer 10
-
$1,001 NZD
ZAR 9,102 ZAR
View
A
Retailer 11
-
$1,033 NZD
$581 USD
View
A
Retailer 12
-
$1,112 NZD
£493 GBP
View
A
Retailer 13
-
$1,413 NZD
A$1,223 AUD
View
B+
Retailer 14
-
$1,491 NZD
$839 USD
View
B+
Retailer 15
-
$1,594 NZD
$897 USD
View
Retailer 16
-
$1,630 NZD
$917 USD
View
Price last confirmed 25 days ago
B+
Retailer 17
-
$1,866 NZD
$1,050 USD
View
B+
Retailer 18
-
$1,958 NZD
$1,102 USD
View
B+
Retailer 19
-
$2,033 NZD
A$1,760 AUD
View
B+
Retailer 20
-
$2,046 NZD
$1,151 USD
View
B+
Retailer 21
-
$2,327 NZD
£1,031 GBP
View
B
Retailer 22
-
$2,482 NZD
$1,396 USD
View
Retailer 23
-
$3,252 NZD
$1,830 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
9399402A · Nov 2
$3,963 NZD
$2,230 USD
View
23 more retailers have this diamond
Prices start from $469 NZDSave up to $3,494 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
1.30ct Radiant
$469 NZD