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Radiant|Lab Grown|IGI

5.09ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG754508855

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

Certificate IGI LG754508855

Diamond specifications and retailer prices

From $10,488 AUD
$7,367 USD
As of November 1, 2026
Save $37,910 AUD (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $48,397 AUD at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 5.09ct lab-grown radiant diamond

This 5.09ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754508855 or 754508855. Listed at 13 retailers as of October 31, 2026, with prices from $10,488 to $48,397, a $37,910 spread on the same certified stone. Michael Trio lists it at $48,397. 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

5.09
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508855
Dimensions8.73 × 8.73 × 5.67 mm
L/W Ratio1.00
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
8.73 mm8.73 mm5.09 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508855
Side View
Table 65.0%Crown 42.7°Girdle: STK-THKPavilion 33.8°Culet: NoneDepth 64.9%

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: Nov 1
Current: $48,397 AUD|Low: $10,488 AUD|High: $52,264 AUD|Avg: $25,266 AUD|-7.4%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 11$10,488 AUD
Retailer 10$10,859 AUD
Retailer 4$13,204 AUD
Retailer 6$13,607 AUD
Retailer 13$14,213 AUD
Retailer 8$15,856 AUD
Retailer 12$21,098 AUD
Retailer 9$21,700 AUD
Retailer 2$24,066 AUD
Retailer 7$32,938 AUD
Retailer 5$38,546 AUD
Retailer 3$42,449 AUD
Michael Trio$48,397 AUD

28 data points across 13 retailers

13 retailers$10,488 AUD to $48,397 AUD

A
Cheapest Retailer
-
$10,488 AUD
$7,367 USD
A
Retailer 2
-
$10,859 AUD
$7,628 USD
View
A
Retailer 3
-
$13,204 AUD
$9,275 USD
View
A
Retailer 4
-
$13,607 AUD
$9,558 USD
View
A
Retailer 5
-
$14,213 AUD
HK$78,000 HKD
View
A
Retailer 6
-
$15,856 AUD
£8,770 GBP
View
A
Retailer 7
-
$21,098 AUD
$14,820 USD
View
A
Retailer 8
-
$21,700 AUD
€14,517 EUR
View
A
Retailer 9
-
$24,066 AUD
£13,311 GBP
View
B+
Retailer 10
-
$32,938 AUD
View
B+
Retailer 11
-
$38,546 AUD
$27,077 USD
View
B
Retailer 12
-
$42,449 AUD
$29,818 USD
View
Most Expensive
B
Michael Trio
5984198460 · Oct 31
$48,397 AUD
SGD 45,941 SGD
View
12 more retailers have this diamond
Prices start from $10,488 AUDSave up to $37,910 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
5.09ct Radiant
$10,488 AUD