Radiant|Lab Grown|IGI

1.30ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG780665761

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

Certificate IGI LG780665761

Diamond specifications and retailer prices

From $347 AUD
$244 USD
As of October 30, 2026
Save $2,984 AUD (90%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,207 AUD at Rare Carat · As of October 21, 2026
View at Rare Carat

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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780665761 or 780665761. Listed at 18 retailers as of October 30, 2026, with a 859% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.30
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780665761
Dimensions7.75 × 5.53 × 3.69 mm
L/W Ratio1.40
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 mm5.53 mm1.30 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780665761
Side View
Table 64.0%Crown 39.9°Girdle: MediumPavilion 35.8°Culet: NoneDepth 66.7%

Caratlytics Score

How it works →
A+
Exceptional
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 30
Current: $4,207 AUD|Low: $347 AUD|High: $5,637 AUD|Avg: $1,816 AUD|+14.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 6$347 AUD
Retailer 5$538 AUD
Retailer 7$646 AUD
Retailer 10$723 AUD
Retailer 3$740 AUD
Retailer 13$815 AUD
Retailer 4$994 AUD
Retailer 9$1,388 AUD
Retailer 12$1,400 AUD
Retailer 11$1,906 AUD
Retailer 2$3,331 AUD
Retailer 8$3,331 AUD
Rare Carat$4,207 AUD

29 data points across 13 retailers

18 retailers$347 AUD to $3,331 AUD

A+
Cheapest Retailer
-
$347 AUD
$244 USD
Retailer 2
-
$477 AUD
$335 USD
View
Price last confirmed 33 days ago
A
Retailer 3
-
$538 AUD
$378 USD
View
Final sale: no returns
Retailer 4
-
$552 AUD
$388 USD
View
Price last confirmed 35 days ago
A
Retailer 5
-
$646 AUD
$454 USD
View
A
Retailer 6
-
$723 AUD
$508 USD
View
Retailer 7
-
$740 AUD
$520 USD
View
Price last confirmed 10 days ago
Retailer 8
-
$815 AUD
€545 EUR
View
Price last confirmed 10 days ago
A
Retailer 9
-
$994 AUD
$698 USD
View
B+
Retailer 10
-
$1,388 AUD
$975 USD
View
B+
Retailer 11
-
$1,400 AUD
$983 USD
View
B+
Retailer 12
-
$1,906 AUD
£1,054 GBP
View
Retailer 13
-
$2,096 AUD
$1,472 USD
View
Price last confirmed 32 days ago
B
Retailer 14
-
$3,331 AUD
$2,340 USD
View
B
Retailer 15
-
$3,331 AUD
$2,340 USD
View
Retailer 16
-
$4,038 AUD
$2,836 USD
View
Price last confirmed 84 days ago
Retailer 17
-
$4,143 AUD
$2,910 USD
View
Price last confirmed 12 days ago
Most Expensive
Rare Carat
A10-158B_l_799677051 · Oct 21
$4,207 AUD
$2,955 USD
View
Price last confirmed 12 days ago
17 more retailers have this diamond
Prices start from $347 AUDSave up to $2,984 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
$347 AUD