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Radiant|Lab Grown|IGI

4.02ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG780666053

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

Certificate IGI LG780666053

Diamond specifications and retailer prices

From $5,072 AUD
$3,563 USD
As of October 30, 2026
Save $26,290 AUD (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $31,362 AUD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.02ct lab-grown radiant diamond

This 4.02ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780666053 or 780666053. Listed at 15 retailers as of October 30, 2026, with prices from $5,072 to $31,362, a $26,290 spread on the same certified stone. Do Amore Diamonds lists it at $31,362. 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

4.02
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.4°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780666053
Dimensions11.02 × 7.91 × 5.26 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
11.02 mm7.91 mm4.02 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780666053
Side View
Table 59.0%Crown 42.4°Girdle: ThickPavilion 34.2°Culet: NoneDepth 66.5%

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: Oct 30
Current: $31,362 AUD|Low: $5,072 AUD|High: $42,993 AUD|Avg: $13,622 AUD|-27.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 10$5,072 AUD
Retailer 8$5,509 AUD
Retailer 12$5,969 AUD
Retailer 4$5,986 AUD
Retailer 11$7,443 AUD
Retailer 9$8,211 AUD
Retailer 2$9,878 AUD
Retailer 7$10,891 AUD
Retailer 6$12,569 AUD
Retailer 3$14,401 AUD
Retailer 5$17,468 AUD
Do Amore Diamonds$31,362 AUD

36 data points across 12 retailers

15 retailers$5,072 AUD to $31,362 AUD

A
Cheapest Retailer
-
$5,072 AUD
$3,563 USD
A
Retailer 2
-
$5,509 AUD
$3,870 USD
View
A
Retailer 3
-
$5,969 AUD
$4,193 USD
View
A
Retailer 4
-
$5,986 AUD
$4,205 USD
View
Final sale: no returns
Retailer 5
-
$6,069 AUD
$4,263 USD
View
Price last confirmed 31 days ago
Retailer 6
-
$6,359 AUD
$4,467 USD
View
Price last confirmed 34 days ago
A
Retailer 7
-
$7,443 AUD
$5,228 USD
View
A
Retailer 8
-
$8,211 AUD
$5,768 USD
View
Retailer 9
-
$9,709 AUD
$6,820 USD
View
Price last confirmed 31 days ago
B+
Retailer 10
-
$9,878 AUD
€6,608 EUR
View
B+
Retailer 11
-
$10,891 AUD
$7,650 USD
View
B+
Retailer 12
-
$12,569 AUD
£6,952 GBP
View
B+
Retailer 13
-
$14,401 AUD
$10,116 USD
View
B+
Retailer 14
-
$17,468 AUD
$12,270 USD
View
Most Expensive
B
Do Amore Diamonds
27-15DDAF019 · Oct 31
$31,362 AUD
$22,030 USD
View
14 more retailers have this diamond
Prices start from $5,072 AUDSave up to $26,290 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
4.02ct Radiant
$5,072 AUD