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 $360 AUD
$253 USD
As of October 30, 2026
Save $2,871 AUD (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,232 AUD at Brilliant Earth · As of October 31, 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 October 30, 2026, with prices from $360 to $3,232, a $2,871 spread on the same certified stone. Brilliant Earth lists it at $3,232. 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: Oct 30
Current: $3,232 AUD|Low: $346 AUD|High: $3,274 AUD|Avg: $1,027 AUD|+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 1, 2026
Retailer 3$360 AUD
Retailer 8$403 AUD
Retailer 6$419 AUD
Retailer 4$447 AUD
Retailer 7$447 AUD
Retailer 11$601 AUD
Retailer 14$676 AUD
Retailer 12$768 AUD
Retailer 10$803 AUD
Retailer 9$845 AUD
Retailer 13$1,088 AUD
Retailer 16$1,092 AUD
Retailer 5$1,438 AUD
Retailer 2$1,792 AUD
Retailer 15$2,598 AUD
Brilliant Earth$3,232 AUD

44 data points across 16 retailers

21 retailers$360 AUD to $3,232 AUD

A
Cheapest Retailer
-
$360 AUD
$253 USD
A
Retailer 2
-
$403 AUD
$283 USD
View
Final sale: no returns
A
Retailer 3
-
$419 AUD
$294 USD
View
Retailer 4
-
$447 AUD
$314 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$447 AUD
$314 USD
View
A
Retailer 6
-
$601 AUD
$422 USD
View
A
Retailer 7
-
$676 AUD
$475 USD
View
A
Retailer 8
-
$768 AUD
ZAR 8,719 ZAR
View
A
Retailer 9
-
$803 AUD
€537 EUR
View
A
Retailer 10
-
$845 AUD
£467 GBP
View
A
Retailer 11
-
$1,088 AUD
View
B+
Retailer 12
-
$1,092 AUD
$767 USD
View
B+
Retailer 13
-
$1,271 AUD
$893 USD
View
B+
Retailer 14
-
$1,438 AUD
$1,010 USD
View
B+
Retailer 15
-
$1,511 AUD
$1,061 USD
View
B+
Retailer 16
-
$1,792 AUD
£991 GBP
View
B
Retailer 17
-
$1,941 AUD
$1,364 USD
View
Retailer 18
-
$2,598 AUD
$1,825 USD
View
Price last confirmed 13 days ago
Retailer 19
-
$2,773 AUD
$1,948 USD
View
Price last confirmed 83 days ago
Retailer 20
-
$2,975 AUD
$2,090 USD
View
Price last confirmed 23 days ago
Most Expensive
B
Brilliant Earth
21312643A · Oct 31
$3,232 AUD
$2,270 USD
View
20 more retailers have this diamond
Prices start from $360 AUDSave up to $2,871 AUD

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
$360 AUD