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Radiant|Lab Grown|IGI

5.08ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG780665290

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

Certificate IGI LG780665290

Diamond specifications and retailer prices

From $11,907 AUD
$8,364 USD
As of October 30, 2026
Save $26,539 AUD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $38,446 AUD at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 5.08ct lab-grown radiant diamond

This 5.08ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780665290 or 780665290. Listed at 15 retailers as of October 29, 2026, with prices from $11,907 to $38,446, a $26,539 spread on the same certified stone. Frank Darling lists it at $38,446. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.08
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780665290
Dimensions11.92 × 8.55 × 5.71 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
11.92 mm8.55 mm5.08 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780665290
Side View
Table 59.0%Crown 38.2°Girdle: ThickPavilion 33.1°Culet: NoneDepth 66.8%

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: $38,446 AUD|Low: $11,907 AUD|High: $87,053 AUD|Avg: $25,931 AUD|-18.3%
Frank Darling
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
October 30, 2026
Retailer 10$11,907 AUD
Retailer 12$12,098 AUD
Retailer 6$12,351 AUD
Retailer 4$12,384 AUD
Retailer 15$13,695 AUD
Retailer 13$15,365 AUD
Retailer 11$15,983 AUD
Retailer 9$16,421 AUD
Retailer 3$17,147 AUD
Retailer 7$17,197 AUD
Retailer 2$23,162 AUD
Retailer 5$26,833 AUD
Retailer 8$27,360 AUD
Frank Darling$38,446 AUD
Retailer 14$74,298 AUD

39 data points across 15 retailers

15 retailers$11,907 AUD to $38,446 AUD

A+
Cheapest Retailer
-
$11,907 AUD
$8,364 USD
A
Retailer 2
-
$12,098 AUD
$8,498 USD
View
A
Retailer 3
-
$12,351 AUD
$8,676 USD
View
A
Retailer 4
-
$12,384 AUD
$8,699 USD
View
A
Retailer 5
-
$13,695 AUD
$9,620 USD
View
A
Retailer 6
-
$15,365 AUD
$10,793 USD
View
A
Retailer 7
-
$15,983 AUD
$11,227 USD
View
A
Retailer 8
-
$16,421 AUD
$11,535 USD
View
A
Retailer 9
-
$17,147 AUD
$12,045 USD
View
A
Retailer 10
-
$17,197 AUD
$12,080 USD
View
Final sale: no returns
A
Retailer 11
-
$23,162 AUD
$16,270 USD
View
Retailer 12
-
$26,833 AUD
€17,951 EUR
View
Price last confirmed 7 days ago
B+
Retailer 13
-
$27,360 AUD
£15,133 GBP
View
Most Expensive
B+
Frank Darling
P82P-28EL · Oct 29
$38,446 AUD
$27,006 USD
View
13 more retailers have this diamond
Prices start from $11,907 AUDSave up to $26,539 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+
5.08ct Radiant
$11,907 AUD