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Radiant|Lab Grown|IGI

4.89ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG731557728

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

Certificate IGI LG731557728

Diamond specifications and retailer prices

From $11,769 AUD
£6,510 GBP
As of October 30, 2026
Save $37,788 AUD (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $49,557 AUD at Michael Trio · As of October 30, 2026
View at Michael Trio

About this 4.89ct lab-grown radiant diamond

This 4.89ct 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 LG731557728 or 731557728. Listed at 14 retailers as of October 30, 2026, with prices from $11,769 to $49,557, a $37,788 spread on the same certified stone. Michael Trio lists it at $49,557. 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

4.89
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731557728
Dimensions9.34 × 9.14 × 6.15 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.34 mm9.14 mm4.89 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731557728
Side View
Table 68.0%Crown 42.8°Girdle: Slightly ThickPavilion 34.8°Culet: NoneDepth 67.3%

Caratlytics Score

How it works →
A
Excellent
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: $49,557 AUD|Low: $11,730 AUD|High: $49,557 AUD|Avg: $25,368 AUD
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
Retailer 14
October 30, 2026
Retailer 2$11,769 AUD
Retailer 4$12,555 AUD
Retailer 3$13,601 AUD
Retailer 9$13,994 AUD
Retailer 10$13,994 AUD
Retailer 14$14,088 AUD
Retailer 5$20,199 AUD
Retailer 8$25,787 AUD
Retailer 11$25,867 AUD
Retailer 7$29,987 AUD
Retailer 13$36,078 AUD
Retailer 12$39,236 AUD
Retailer 6$44,779 AUD
Michael Trio$49,557 AUD

38 data points across 14 retailers

14 retailers$11,769 AUD to $49,557 AUD

A
Cheapest Retailer
-
$11,769 AUD
£6,510 GBP
B+
Retailer 2
-
$12,555 AUD
$8,819 USD
View
B+
Retailer 3
-
$13,601 AUD
$9,554 USD
View
Final sale: no returns
B+
Retailer 4
-
$13,994 AUD
$9,830 USD
View
B+
Retailer 5
-
$13,994 AUD
$9,830 USD
View
Retailer 6
-
$14,088 AUD
$9,896 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
$20,199 AUD
£11,172 GBP
View
B+
Retailer 8
-
$25,787 AUD
£14,263 GBP
View
Retailer 9
-
$25,867 AUD
€17,305 EUR
View
Price last confirmed 7 days ago
B
Retailer 10
-
$29,987 AUD
ZAR 340,289 ZAR
View
B
Retailer 11
-
$36,078 AUD
$25,343 USD
View
B
Retailer 12
-
$39,236 AUD
$27,561 USD
View
B
Retailer 13
-
$44,779 AUD
$31,455 USD
View
Most Expensive
B
Michael Trio
5003831750 · Oct 30
$49,557 AUD
SGD 47,042 SGD
View
13 more retailers have this diamond
Prices start from $11,769 AUDSave up to $37,788 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
4.89ct Radiant
$11,769 AUD