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Radiant|Lab Grown|IGI

1.30ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG787612679

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

Certificate IGI LG787612679

Diamond specifications and retailer prices

From $450 NZD
$253 USD
As of November 2, 2026
Save $3,585 NZD (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,034 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 LG787612679 or 787612679. Listed at 21 retailers as of November 2, 2026, with prices from $450 to $4,034, a $3,585 spread on the same certified stone. Brilliant Earth lists it at $4,034. 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 angle40.7°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787612679
Dimensions7.75 × 5.38 × 3.70 mm
L/W Ratio1.44
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
7.75 mm5.38 mm1.30 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787612679
Side View
Table 64.0%Crown 40.7°Girdle: Slightly ThickPavilion 36.2°Culet: NoneDepth 68.8%

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: Nov 2
Current: $4,034 NZD|Low: $432 NZD|High: $4,088 NZD|Avg: $1,284 NZD|+8.6%
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 3$450 NZD
Retailer 8$503 NZD
Retailer 6$523 NZD
Retailer 4$558 NZD
Retailer 7$558 NZD
Retailer 12$750 NZD
Retailer 14$844 NZD
Retailer 9$964 NZD
Retailer 11$1,002 NZD
Retailer 2$1,064 NZD
Retailer 13$1,359 NZD
Retailer 16$1,363 NZD
Retailer 5$1,795 NZD
Retailer 10$2,237 NZD
Retailer 15$3,244 NZD
Brilliant Earth$4,034 NZD

44 data points across 16 retailers

21 retailers$450 NZD to $4,034 NZD

A
Cheapest Retailer
-
$450 NZD
$253 USD
A
Retailer 2
-
$503 NZD
$283 USD
View
Final sale: no returns
A
Retailer 3
-
$523 NZD
$294 USD
View
Retailer 4
-
$558 NZD
$314 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$558 NZD
$314 USD
View
A
Retailer 6
-
$750 NZD
$422 USD
View
A
Retailer 7
-
$844 NZD
$475 USD
View
A
Retailer 8
-
$964 NZD
ZAR 8,762 ZAR
View
A
Retailer 9
-
$1,002 NZD
€537 EUR
View
A
Retailer 10
-
$1,064 NZD
£471 GBP
View
A
Retailer 11
-
$1,359 NZD
A$1,176 AUD
View
B+
Retailer 12
-
$1,363 NZD
$767 USD
View
B+
Retailer 13
-
$1,587 NZD
$893 USD
View
B+
Retailer 14
-
$1,795 NZD
$1,010 USD
View
B+
Retailer 15
-
$1,886 NZD
$1,061 USD
View
B+
Retailer 16
-
$2,237 NZD
£991 GBP
View
B
Retailer 17
-
$2,424 NZD
$1,364 USD
View
B
Retailer 18
-
$3,244 NZD
$1,825 USD
View
Retailer 19
-
$3,462 NZD
$1,948 USD
View
Price last confirmed 84 days ago
Retailer 20
-
$3,715 NZD
$2,090 USD
View
Price last confirmed 25 days ago
Most Expensive
B
Brilliant Earth
21312643A · Nov 2
$4,034 NZD
$2,270 USD
View
20 more retailers have this diamond
Prices start from $450 NZDSave up to $3,585 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
$450 NZD