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Radiant|Lab Grown|IGI

3.03ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG727578312

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

Certificate IGI LG727578312

Diamond specifications and retailer prices

From $1,735 AUD
$1,219 USD
As of October 30, 2026
Save $9,568 AUD (85%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $11,303 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.03ct lab-grown radiant diamond

This 3.03ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG727578312 or 727578312. Listed at 30 retailers as of October 29, 2026, with prices from $1,735 to $11,303, a $9,568 spread on the same certified stone. Brilliant Earth lists it at $11,303. 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

3.03
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle33.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG727578312
Dimensions10.23 × 7.32 × 4.71 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
10.23 mm7.32 mm3.03 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG727578312
Side View
Table 64.0%Crown 40.4°Girdle: MediumPavilion 33.2°Culet: NoneDepth 64.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $11,303 AUD|Low: $1,735 AUD|High: $17,126 AUD|Avg: $5,421 AUD|-34.0%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 31, 2026
Retailer 20$1,735 AUD
Retailer 13$2,211 AUD
Retailer 9$2,313 AUD
Retailer 18$2,363 AUD
Retailer 22$2,442 AUD
Retailer 5$2,915 AUD
Retailer 2$3,220 AUD
Retailer 12$3,306 AUD
Retailer 17$3,857 AUD
Retailer 16$4,151 AUD
Retailer 8$4,674 AUD
Retailer 7$4,860 AUD
Retailer 11$4,983 AUD
Retailer 14$5,694 AUD
Retailer 19$5,776 AUD
Retailer 21$6,328 AUD
Retailer 6$7,056 AUD
Retailer 4$7,079 AUD
Retailer 10$7,087 AUD
Retailer 3$7,680 AUD
Retailer 15$9,588 AUD
Brilliant Earth$11,303 AUD

33 data points across 22 retailers

30 retailers$1,735 AUD to $11,303 AUD

A
Cheapest Retailer
-
$1,735 AUD
$1,219 USD
Retailer 2
-
$2,041 AUD
$1,434 USD
View
Price last confirmed 31 days ago
Retailer 3
-
$2,204 AUD
$1,548 USD
View
Price last confirmed 28 days ago
A
Retailer 4
-
$2,211 AUD
$1,553 USD
View
Final sale: no returns
Retailer 5
-
$2,221 AUD
$1,560 USD
View
Price last confirmed 34 days ago
A
Retailer 6
-
$2,313 AUD
$1,625 USD
View
Retailer 7
-
$2,335 AUD
$1,640 USD
View
Price last confirmed 34 days ago
A
Retailer 8
-
$2,363 AUD
$1,660 USD
View
A
Retailer 9
-
$2,442 AUD
HK$13,400 HKD
View
A
Retailer 10
-
$2,915 AUD
£1,612 GBP
View
A
Retailer 11
-
$3,220 AUD
€2,154 EUR
View
A
Retailer 12
-
$3,306 AUD
$2,322 USD
View
A
Retailer 13
-
$3,857 AUD
$2,709 USD
View
A
Retailer 14
-
$4,130 AUD
$2,901 USD
View
Retailer 15
-
$4,130 AUD
$2,901 USD
View
Price last confirmed 21 days ago
A
Retailer 16
-
$4,151 AUD
$2,916 USD
View
Retailer 17
-
$4,439 AUD
$3,118 USD
View
Price last confirmed 31 days ago
A
Retailer 18
-
$4,674 AUD
ZAR 53,038 ZAR
View
B+
Retailer 19
-
$4,860 AUD
£2,688 GBP
View
Retailer 20
-
$4,983 AUD
View
Price last confirmed 9 days ago
B+
Retailer 21
-
$5,694 AUD
$4,000 USD
View
B+
Retailer 22
-
$5,776 AUD
$4,057 USD
View
B+
Retailer 23
-
$6,328 AUD
$4,445 USD
View
B+
Retailer 24
-
$7,056 AUD
$4,956 USD
View
B+
Retailer 25
-
$7,079 AUD
SGD 6,720 SGD
View
B+
Retailer 26
-
$7,087 AUD
£3,920 GBP
View
B+
Retailer 27
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$7,680 AUD
$5,395 USD
View
Retailer 28
-
$7,840 AUD
$5,507 USD
View
Price last confirmed 103 days ago
Retailer 29
-
$9,588 AUD
View
Price last confirmed 30 days ago
Most Expensive
B
Brilliant Earth
15743754A · Oct 29
$11,303 AUD
$7,940 USD
View
29 more retailers have this diamond
Prices start from $1,735 AUDSave up to $9,568 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
3.03ct Radiant
$1,735 AUD